19-1009; Rev 0; 10/07
MAX5960L Evaluation Kit/
Evaluation System
The MAX5960L evaluation kit (EV kit) is a fully assembled and tested surface-mount quad hot-plug controller
printed-circuit board (PCB) with four PCI Express® hotplug slots. The circuit uses a MAX5960L IC in an 80-pin
TQFP package. The EV kit provides independent power
control for the 12V, 3.3V, and 3.3V auxiliary outputs at
four PCI Express x16 connectors. The EV kit demonstrates the MAX5960L IC’s inrush current control, output overcurrent/short-circuit protection, and input
undervoltage monitoring features.
The MAX5960L IC controls two separate external
n-channel MOSFETs for the 12V and 3.3V outputs of
each channel, respectively. Additionally, the MAX5960L
has internal MOSFETs that control the 3.3V auxiliary
outputs of channels A, B, C, and D. Switches are provided to independently enable/disable each channels’
main (12V, 3.3V) and auxiliary supply (3.3V).
The MAX5960L EV kit can be reconfigured for evaluating a x1, x4, or x8 PCI Express quad hot-plug design.
Alternatively, the EV kit can also be used to demonstrate the MAX5960L hot-plug features without using
the PCI Express x16 connectors.
The EV kit includes three MAX7313 I/O expanders that
enable communication through an SMBus™ interface for
the MAX5960L signals and some of the PCI Express
channel signals. A CMAXQUSB interface board can be
used to enable PC communication through the SMBus
interface. Simple Windows® 98SE/2000/XP-compatible
software is provided to access each MAX7313 I/O
expander register at the bit level. The MAX5960L EV kit
can also be used in local control, without any software.
Order the MAX5960LEVCMAXQU for a complete PCbased evaluation of the MAX5960L. Order the
MAX5960LEVKIT if you already have a CMAXQUSB
interface board or do not require PC-based evaluation
of the MAX5960L.
Features
♦ Demonstrates PCI Express x16 Quad Hot-Plug
Design
♦ Independent Output Controls for Each Channel
12V and Up to 5.5A (Adjustable)
3.3V and Up to 3.3A (Adjustable)
3.3VAUX and Up to 0.550A
♦ Evaluates Hot-Plugging PCI Express x1, x4, x8,
or x16 Line Cards
♦ Demonstrates Input Inrush Current Control
♦ Demonstrates Output Overcurrent/Short-Circuit
Protection
♦ Undervoltage Lockout Protection for 12V, 3.3V,
and 3.3V Auxiliary Supplies
♦ Configurable Power-On Reset (POR)
♦ Independent On/Off Controls for Each Channel’s
12V/3.3V Main and 3.3V Aux Power
♦ Latched Output (MAX5960L) after Fault
Conditions; also Evaluates MAX5959A,
MAX5960A Autoretry
♦ Input/Output Interface Using MAX7313 I/O
Expanders (SMBus Interface) or Local Control
♦ Can Be Controlled Locally Without Software
♦ Windows 98SE/2000/XP-Compatible Software
♦ Fully Assembled and Tested
Ordering Information
PART
TYPE
MAX5960LEVKIT+
EV Kit
MAX5960LEVCMAXQU+
EV System
+Denotes lead-free and RoHS-compliant.
PCI Express is a registered trademark of PCI-SIG Corp.
SMBus is a trademark of Intel Corp.
Windows is a registered trademark of Microsoft Corp.
Note: The MAX5960L EV kit software can be downloaded from
the Maxim website at www.maxim-ic.com/evkitsoftware.
However, the CMAXQUSB interface board is required to interface the EV kit to a computer when using the software.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
General Description
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
MAX5960L Evaluation Kit/
Evaluation System
Component Lists
MAX5960L EV System
PART
QTY
DESCRIPTION
MAX5960LEVKIT+
1
MAX5960L evaluation kit
CMAXQUSB+
1
SMBus interface board
MAX5960L EV Kit
DESIGNATION
DESIGNATION
QTY
JU1–JU4, JU9,
JU10, JU15, JU16
8
2-pin headers
JU5–JU8,
JU11–JU14
8
3-pin headers
N1–N8
8
20V, 13.4A n-channel MOSFETs
(8-pin SO)
Vishay Si7448DP-T1-E3
R1–R6,
R11–R16, R73,
R76, R82, R83,
R84, R90, R93,
R99–R104
25
10kΩ ±5% resistors (0603)
R7–R10, R17,
R18
0
Not installed, resistors (0603)
R30, R36, R45,
R50
4
1kΩ ±5% resistors (1206)
0
Not installed, resistors (0805)
DESCRIPTION
0.1µF ±10%, 16V X7R ceramic
capacitors (0603)
Murata GRM188R71C104K
DESCRIPTION
C1, C3, C40,
C41, C42
5
C2, C4, C11,
C14, C17, C20,
C24, C25,
C28, C30
0
Not installed, ceramic capacitors
(0805)
C5, C10, C15,
C16, C21, C22,
C23, C26, C27,
C31–C34
13
1µF ±10%, 16V X7R ceramic
capacitors (0805)
Murata GRM21BR71C105K
C12, C18, C29
3
10µF ±20%, 25V X7R ceramic
capacitors (1812)
TDK 4532X7R1E106M
R31, R35, R38,
R42, R46, R49,
R52, R55
C13
1
1500µF, 16V electrolytic capacitor
(12.5mm x 13.5mm case)
Panasonic EEVFK1C152Q
R32, R34, R47,
R48
4
1
3300µF, 6.3V, low-Z electrolytic
capacitor
(12.5mm x 13.5mm case)
SANYO 6CE3300KX
0.008Ω ±1%, 0.5W sense
resistors (2010)
Vishay WSL20108L000FEA or
IRC LRC-LRF2010LF-01-R008-G
C19
2
QTY
MAX5960L EV Kit (continued)
C35
1
100µF, 6.3V, low-Z electrolytic
capacitor (6.3mm x 6.0mm case)
SANYO 6CE100KX
D1
1
1A, 40V Schottky diode (SOD-123)
Diodes Inc. 1N5819HW-F
D2–D14, D17,
D18, D21
16
Green surface-mount LEDs (1206)
D15, D16, D19,
D20
4
Yellow surface-mount LEDs (1206)
J1–J4
4
PCI Express x16 connectors
Molex 87715-9305
J5–J8
4
8-pin headers
J9
1
2 x 10 right-angle female
receptacle
R33
1
750Ω ±1% resistor (1210)
R37, R41, R43,
R44, R51, R56,
R57, R58, R74,
R75, R80, R81,
R91, R92, R97,
R98
16
150Ω ±5% resistors (0603)
R39, R40, R53,
R54
4
0.005Ω ±1%, 0.5W sense
resistors (2010)
Vishay WSL20105L000FEA
R70, R71, R78,
R79, R88, R89,
R95, R96
8
51kΩ ±5% resistors (0603)
R72, R77, R94,
R111
4
3.3kΩ ±5% resistors (0603)
SW1–SW4
4
SPST momentary-contact switches
SW5–SW12
8
SPDT slide switches
_______________________________________________________________________________________
MAX5960L Evaluation Kit/
Evaluation System
DESIGNATION
QTY
TP3, TP5, TP7, TP8,
TP20, TP22, TP25,
TP26, TP28, TP30,
TP32, TP33, TP34,
TP37, TP38, TP40,
TP43, TP44, TP45,
OUT1–OUT4
TP11–TP18, TP23,
TP29, TP41, TP46,
TP47, TP48,
TP53, TP54
TP21, TP24, TP27,
TP31, TP35, TP36,
TP39, TP42,
TP50, TP51
DESIGNATION
DESCRIPTION
23
QTY
U1
1
U2, U3, U4
3
Maxim 16-port I/O expanders
(24-pin thin QFN, 4mm x 4mm)
MAX7313ATG+
VIN1, VIN2,
VIN3, GND, GND
5
Uninsulated banana jacks
—
16
Shunts (JU1–JU16)
—
10
Rubber bumpers
—
1
PCB: MAX5960L Evaluation Kit+
PC test points, red
16
PC test points, black
10
DESCRIPTION
Quad PCI Express hot-swap
controller (80-pin TQFP 12mm x
12mm x 1mm)
Maxim MAX5960LECS+
PC test points, miniature, red
Component Suppliers
SUPPLIER
PHONE
WEBSITE
Diodes Inc.
805-446-4800
www.diodes.com
IRC
361-992-7900
www.irctt.com
Murata
770-436-1300
www.murata.com
Panasonic
714-373-7366
www.panasonic.com
SANYO Electronic Device
619-661-6835
www.sanyodevice.com
TDK
847-803-6100
www.component.tdk.com
Vishay
—
www.vishay.com
Note: Indicate that you are using the MAX5959A/MAX5959L/MAX5960A/MAX5960L when contacting these component suppliers.
MAX5960L EV Kit Files
FILE
INSTALL.EXE
MAX5960L.EXE
Application program
HELPFILE.HTM
MAX5960L EV kit help file
FTD2XX.INF
TROUBLESHOOTING_USB.PDF
UNINST.INI
Quick Start
(Hardware Only)
Required equipment:
• One each of the following DC power supplies:
12V, 25A
3.3V, 20A
•
Three voltmeters
DESCRIPTION
Installs the EV kit files on your computer
USB device driver file
USB driver installation help file
Uninstalls the EV kit software
The 3.3V power supply can be used to power the main
3.3V and 3.3VAUX inputs.
The MAX5960L EV kit is fully assembled and tested.
Follow these steps to verify board operation. Do not turn
on the power supply until all connections are completed.
Note the banana leads connecting the 12V and 3.3V
power supply to the EV kit must be short (< 12in long)
and rated for at least 25A.
_______________________________________________________________________________________
3
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
MAX5960L EV Kit (continued)
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
MAX5960L Evaluation Kit/
Evaluation System
MAX5960L Hardware Only Configuration
Software and Hardware Quick Start
1)
Verify that shunts are installed on jumpers JU1,
JU2, JU3, and JU4 (PRES-DET_).
2)
Verify that shunts are installed on pins 1 and 2 of
jumpers JU5, JU6, JU7, JU8, JU11, JU12, JU13,
and JU14 (local switch control).
The MAX5960L EV kit is fully assembled and tested.
Follow these steps to verify board operation. Do not
turn on the power supplies until all connections are
completed.
3)
Verify that a shunt is not installed on jumpers JU9,
JU10, JU15, and JU16 (MRL_).
4)
Utilizing short 25A-rated banana leads (< 12in
long) connect the 12V DC power supply to the
VIN1 banana jack. Utilizing short 25A-rated banana
leads (< 12in long) connect the supply ground to
the GND banana jack.
5)
Utilizing short 25A-rated banana leads (< 12in
long) connect the 3.3V DC power supply to the
VIN2 banana jack. Utilizing short 25A-rated banana
leads (< 12in long) connect the supply ground to
the GND banana jack.
6)
Connect the 3.3V DC power supply to the VIN3
banana jack with a short banana lead.
7)
Connect a voltmeter to the 12VA pad and GND.
Connect a voltmeter to the 3.3VA pad and GND.
Connect a voltmeter to the 3.3VAUXA pad and GND.
8)
Set switches SW5, SW7, SW9, SW11 (ON_), and
SW6, SW8, SW10, SW12 (AUXON_) to the OFF
position.
9)
Turn on both power supplies in any sequence.
10) Set switches SW5 (ONA) and SW6 (AUXONA) to
the ON position.
11) Verify that the voltage at channel A pad is as
shown below:
12VA = 12V
Required Equipment
•
12V, 25A
3.3V, 20A (used to power the main 3.3V and
3.3VAUX inputs)
•
Maxim MAX5960L EV kit and CMAXQUSB interface
board (USB cable included)
•
Windows 98SE/2000/XP computer with a spare USB
port
•
Three voltmeters for confirming output voltages
Note: In the following sections, software-related items are
identified by bolding. Text in bold refers to items directly
from the EV kit software. Text in bold and underlined
refers to items from the Windows operating system.
1)
2)
3)
4)
3.3VA = 3.3V
3.3VAUXA = 3.3V
5)
12) Sliding switches SW5 and SW6 to the OFF position
will disable the channel A main or auxiliary outputs
on the MAX5960L EV kit.
6)
13) For evaluating channels B, C, and D, use analogous actions on steps 10 through 12 above for the
respective channel switch setting and output voltage reading. See the Jumper and Switch Selection
section for more information on configuring the
respective channel.
7)
14) Test points are provided to observe the MOSFET’s
gate voltage respectively with an oscilloscope.
4
One each of the following DC power supplies:
8)
MAX5960L Software and Hardware Configuration
Visit www.maxim-ic.com/evkitsoftware to download
the latest version of the EV kit software,
5960LRxx.ZIP. Save the EV kit software to a temporary folder and uncompress the ZIP file.
Install the EV kit software on your computer by running the INSTALL.EXE program inside the temporary
folder. The program files are copied and icons are
created in the Windows Start | Programs menu.
Verify that no shunts are installed on jumpers JU1,
JU2, JU3, and JU4 (PRES-DET_).
Verify that shunts are installed on pins 2 and 3 of
jumpers JU5, JU6, JU7, JU8, JU11, JU12, JU13,
and JU14 (computer control).
Verify that a shunt is not installed on jumpers JU9,
JU10, JU15, and JU16 (MRL_).
Utilizing short 25A-rated banana leads (< 12in
long) connect the 12V DC power supply to the
VIN1 banana jack. Utilizing short 25A-rated banana
leads (< 12in long) connect the supply ground to
the GND banana jack.
Utilizing short 25A-rated banana leads (< 12in
long) connect the 3.3V DC power supply to the
VIN2 banana jack. Utilizing short 25A-rated banana
leads (< 12in long) connect the supply ground to
the GND banana jack.
Connect the 3.3V DC power supply to the VIN3
banana jack with a short banana lead. Do not turn
on the power supplies.
_______________________________________________________________________________________
MAX5960L Evaluation Kit/
Evaluation System
Connect a voltmeter to the 12VA pad and GND.
Connect a voltmeter to the 3.3VA pad and GND.
Connect a voltmeter to the 3.3VAUXA pad and GND.
10) Connect the CMAXQUSB interface board to the
MAX5960L EV kit’s J9 connector.
11) Set both CMAXQUSB interface board SW1 switches to enable. These provide pullup resistors for the
SDA and SCL 2-wire bus signals.
12) Turn on the 12V and 3.3V power supplies for the
EV kit. The CMAXQUSB interface board is powered
through the computer’s USB port.
13) Connect the USB cable from the PC to the CMAXQUSB
board. A Building Driver Database window should
pop up in addition to a New Hardware Found
message if this is the first time the EV kit board is
connected to the PC. If you do not see a window
that is similar to the one described above after 30s,
try removing the USB cable from the CMAXQUSB
interface board and reconnect it. Administrator
privileges are required to install the USB device
driver on Windows 2000 and XP. Refer to the document TROUBLESHOOTING_USB.PDF included
with the software if you have any problems during
this step.
14) Follow the directions of the Add New Hardware
Wizard to install the USB device driver. Choose the
Search for the best driver for your device option.
Specify the location of the device driver to be
C:\Program Files\MAX5960L (default installation
directory) using the Browse button.
15) Start the MAX5960L program by opening its icon in
the Start | Programs menu.
16) The software will detect the CMAXQUSB interface
board, the SMBus address of ICs U2, U3, U4, and
will also be updated on the status screen. The software is then ready for changes in the command
section.
17) Install a shunt on jumper JU3 (PRES-DETA) or
insert a PCI Express card into channel A PCI
Express connector J1.
18) To evaluate channels B, C, and D, use analogous
actions on step 17 above for the respective channel. See the Jumper and Switch Selection section
for more information on configuring each channel.
See the Detailed Description of Software section for
more information on the software GUI features. See the
MAX7313 Input/Output Expanders and SMBus
Interface section for configuring the input/output
expander, using the CMAXQUSB interface board.
Detailed Description
The MAX5960L EV kit demonstrates a PCI Express x16
quad hot-plug circuit design. Four PCI Express x16 channels (A, B, C, and D) are provided to evaluate PCI Express
x16 line cards. The EV kit uses a latching MAX5960L
hot-plug controller in an 80-pin TQFP package to control
all four channels’ output power and monitor for faults.
The MAX5960L IC controls each channel’s output
power independently. External n-channel MOSFETs are
used to control power to the 12V and 3.3V outputs of
each channel. Current-sensing resistors R32, R47, R34,
and R48 are used for the 12V, and resistors R39, R53,
R40, and R54 for the 3.3V outputs of the respective
channel. Internal MOSFETs on the MAX5960L control
the 3.3V auxiliary outputs of each channel.
If an overcurrent fault persists on either channel, the
MAX5960L will shut down the respective channel. The
fault is reported at the respective channels’ open-drain
power-good pin (PWRGD_) and fault pin (FAULT_). The
MAX5960L power-on reset (POR) is configured for
160ms; however, the POR can be reconfigured after
installing resistor R18.
Slide switches are provided to enable/disable each
channel’s main output and auxiliary output independently when the SMBus control is not used. Jumpers
JU1–JU4 can be used to provide a presence-detect
function for the respective channel if PCI Express cards
are not used. Momentary pushbutton switches
SW1–SW4 are provided to demonstrate the MAX5960L
debounced logic gate outputs.
The MAX5960L EV kit features green LEDs connected
to each channel’s 12V, 3.3V, and 3.3V auxiliary output
that indicate if the respective output is currently powered. Red test points for the 12V and 3.3V outputs, various PCI Express signals, and other circuit signals such
as the gate drive of each MOSFET have been provided
for probing on the EV kit board. All the EV kit’s black
test points are GND points.
The EV kit also features PCB pads for installing external
resistors and capacitors near each MOSFET gate terminal to increase the MOSFET’s gate-turn-on time.
Surface-mount 0805 case-size components can be
installed at these locations. See Figure 4 for each of the
MOSFET’s gate R and C designators.
The EV kit can be reconfigured for evaluating a x1, x4, or
x8 PCI Express quad hot-plug design by replacing the
appropriate current-sense resistor, R32, R34, R47, or
R48. Consult the appropriate PCI Express specification
in the MAX5960L IC data sheet for selecting other
designs. PCB pads are provided to demonstrate the
MAX5960L hot-plug features without using the PCI
Express x16 connectors.
_______________________________________________________________________________________
5
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
9)
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
MAX5960L Evaluation Kit/
Evaluation System
For evaluating external DC loads, the cables connecting the 12V and 3.3V outputs to the external DC load
must be rated for at least 10A and be shorter than 12in.
Additionally, all current-sense resistors are configured
for the maximum allowable output current on the 12V
and 3.3V outputs. These resistors should be reconfigured only for lower output currents.
The MAX5960L EV kit features three MAX7313 16-port
I/O expanders (U2, U3, U4) and PCB pads for interfacing to a user’s SMBus system. Resistors configure each
MAX7313 to a fixed SMBus serial address. The
address of U2 is 0x40, U3 is 0x42, and U4 is 0x44. The
MAX7313 can also be used to enable/disable each
channel’s main output and auxiliary output independently. See the MAX7313 Input/Output Expanders and
SMBus Interface section for more details.
Jumper and Switch Selection
The jumper and switch selections in the following tables
display the functions provided by the MAX5960L EV kit.
Presence-Detect Channels A, B, C, and D
The MAX5960L EV kit features four jumpers that can
simulate a PCI Express x16 card being plugged into a
connector. Jumpers JU1, JU2, JU3, and/or JU4 are
used to provide a presence-detect function for the
respective channel. An external load (resistive and
capacitive) must be connected to the channel’s output
PCB pads simulating a real PCI Express card. Table 1
lists the various jumper options.
Channel A Enable/Disable Switches
The MAX5960L EV kit features two switches to
enable/disable the 12V/3.3V main and 3.3V auxiliary
channel A outputs. The switches can also be used to
reset a channel that has latched off after a fault has
occurred. Table 2 lists the various switch options.
Channel B Enable/Disable Switches
The MAX5960L EV kit features two switches to
enable/disable the 12V/3.3V main and 3.3V auxiliary
channel B outputs. The switches can also be used to
reset a channel that has latched off after a fault has
occurred. Table 3 lists the various switch options.
Table 1. Channel A, B, C, and D Presence-Detection Functions
JUMPER
JU3
JU4
JU2
JU1
SHUNT
MAX5960L PIN CONNECTION
EV KIT OPERATION SIMULATED
Installed
PRES-DETA pin pulled low
PCI Express card inserted in channel A
None*
PRES-DETA pin pulled high
No PCI Express card in channel A
Installed
PRES-DETB pin pulled Low
PCI Express card inserted in channel B
None*
PRES-DETB pin pulled high
No PCI Express card in channel B
Installed
PRES-DETC pin pulled low
PCI Express card inserted in channel C
None*
PRES-DETC pin pulled high
No PCI Express card in channel C
Installed
PRES-DETD pin pulled low
PCI Express card inserted in channel D
None*
PRES-DETD pin pulled high
No PCI Express card in channel D
*When using a real PCI Express card, these jumper shunts must be removed so that the card has control of the presence detection.
Table 2. Channel A Switch Functions
SWITCH
SW5
SW6
6
SWITCH STATE
MAX5960L PIN CONNECTION
MAX5960L OPERATION
ON
ONA pin pulled high
Enable channel A main outputs
OFF
ONA pin pulled low
Disable channel A main outputs
ON
AUXONA pin pulled high
Enable channel A 3.3V auxiliary output
OFF
AUXONA pin pulled low
Disable channel A 3.3V auxiliary output
_______________________________________________________________________________________
MAX5960L Evaluation Kit/
Evaluation System
Channel D Enable/Disable Switches
The MAX5960L EV kit features two switches to
enable/disable the 12V/3.3V main and 3.3V auxiliary
channel D outputs. The switches can also be used to
reset a channel that has latched off after a fault has
occurred. Table 5 lists the various switch options.
Control Methods, Other Configurations,
and I/O Expander
Fault Resetting
The MAX5960L EV kit features slide switches to reset a
latched fault at each channel. The switch resets the
respective EV kit channel and unlatches the fault when
toggled from ON to OFF. See Tables 2 through 5 for
resetting the respective channel. Refer to the
MAX5960L IC data sheet for additional functions of the
MAX5960L ON_ pins.
Fault Timeout and POR Periods
The MAX5960L fault timeout period is configured for
10ms and can be reconfigured to a new timeout period
by installing surface-mount resistor R17. The MAX5960L
POR timeout period is configured for 160ms; however, a
new POR timeout period can be reconfigured by
installing surface-mount resistor R18. Install a 0Ω resistor at R18 to bypass the POR time period delay. Refer to
MAX5960L IC data sheet Power-Good (PWRGD_) section for selecting the values of resistors R17 or R18.
Table 3. Channel B Switch Functions
SWITCH
SW7
SW8
SWITCH STATE
MAX5960L PIN CONNECTION
MAX5960L OPERATION
ON
ONB pin pulled high
OFF
ONB pin pulled low
Enable channel B main outputs
Disable channel B main outputs
ON
AUXONB pin pulled high
Enable channel B 3.3V auxiliary output
OFF
AUXONB pin pulled low
Disable channel B 3.3V auxiliary output
Table 4. Channel C Switch Functions
SWITCH
SW9
SW10
SWITCH STATE
ON
MAX5960L PIN CONNECTION
ONC pin pulled high
MAX5960L OPERATION
Enable channel C main outputs
OFF
ONC pin pulled low
Disable channel C main outputs
ON
AUXONC pin pulled high
Enable channel C 3.3V auxiliary output
OFF
AUXONC pin pulled low
Disable channel C 3.3V auxiliary output
Table 5. Channel D Switch Functions
SWITCH
SW11
SW12
SWITCH STATE
MAX5960L PIN CONNECTION
MAX5960L OPERATION
ON
OND pin pulled high
Enable channel D main outputs
OFF
OND pin pulled low
Disable channel D main outputs
ON
AUXOND pin pulled high
Enable channel D 3.3V auxiliary output
OFF
AUXOND pin pulled low
Disable channel D 3.3V auxiliary output
_______________________________________________________________________________________
7
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
Channel C Enable/Disable Switches
The MAX5960L EV kit features two switches to
enable/disable the 12V/3.3V main and 3.3V auxiliary
channel C outputs. The switches can also be used to
reset a channel that has latched off after a fault has
occurred. Table 4 lists the various switch options.
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
MAX5960L Evaluation Kit/
Evaluation System
Forced ON Inputs
Either channel PCI Express slot can be forced to turn
on regardless of the MAX5960L logic status inputs. To
force channel A on, install surface-mount resistor R9 or
install the respective channel’s resistor. Typical values
are less than 1kΩ. Additionally, the MAX5960L EV kit
software can be used to force a channel on without
installing the resistor. See the Software Startup section
for more information.
Current Limiting
The MAX5960L EV kit is configured for PCI Express x16
current limits. The EV kit can also evaluate other current-limit configurations for the 12V and 3.3V main outputs of each channel. Resistors R32, R47, R34, and
R48 set the 12V current-limit for channels A, B, C, and
D, respectively. Resistors R39, R53, R40, and R54 set
the 3.3V current limit for channels A, B, C, and D,
respectively. These resistors should be reconfigured
only for lower output currents. Refer to the MAX5960L
IC data sheet for information on selecting other currentlimit resistors.
The 3.3V auxiliary current limit is fixed at 700mA (typ)
and is not reconfigurable. However, a MAX5959L can
be installed to evaluate an auxiliary current limit of
470mA (typ) with the EV kit.
Evaluating Other Quad PCI Express
Hot-Plug Controllers
The MAX5960L EV kit can be used to evaluate the
MAX5959A, MAX5959L, or MAX5960A. Replace U1
with the desired Maxim IC that can be ordered through
the factory.
8
MAX7313 Input/Output Expanders and
SMBus Interface
The MAX5960L EV kit features three MAX7313 I/O
expanders (U2, U3, U4) and PCB pads for connecting to
an SMBus system (SDA and SCL signals). The I/O
expander interfaces with the PRES-DET_, FAULT_, ON_,
OUT_, PWRGD_, and FON_ signals of the MAX5960L for
each channel. Headers J5–J8 (8 pins) are provided to
enable easy access to the respective channel’s signals
through a ribbon cable or scope probe. Green and yellow LEDs (D14–D21) are also provided for user applications such as status indication. Jumpers JU9, JU10,
JU15, and JU16 are provided to mimic a PCI Express
mechanical retention locking (MRL) signal for the
respective channel. Resistors configure each MAX7313
to a fixed SMBus serial address, where U2 is 0x40, U3 is
0x42, and U4 is 0x44.
If the MAX7313 I/O expander is used to control the ON_
signals and read back various other MAX5960L signals
of each channel, jumpers JU5–JU14 must be properly
configured or the I/O expanders may be destroyed
when switching logic states. See Table 6 for configuring jumpers JU5–JU14. Pads are provided on the EV
kit’s PCB for interfacing with a user’s system SMBus
VDD, SDA, SCL, and GND signals.
If a user’s SMBus system is not available, a Windowsbased computer can be interfaced with the EV kit by
connecting the CMAXQUSB interface board to connector J9. The interface board enables the computer to interface with the EV kit’s SMBus signals. The SMBus
interface board and software provides the user with an
option of using a Windows-based GUI interface or “bitbanging” signals to and from the MAX7313 I/O
expander’s various registers to control the MAX5960L IC.
_______________________________________________________________________________________
MAX5960L Evaluation Kit/
Evaluation System
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
Table 6. MAX5960L Channels A, B, C, and D ON_ Signals Configuration
JUMPER
SHUNT LOCATION
JU5
1 and 2
AUXONA controlled by SW6
MAX5960L PIN CONNECTION
Local switch control
EV KIT OPERATION
JU6
1 and 2
ONA controlled by SW5
Local switch control
JU7
1 and 2
ONB controlled by SW7
Local switch control
JU8
1 and 2
AUXONB controlled by SW8
Local switch control
JU11
1 and 2
AUXONC controlled by SW9
Local switch control
JU12
1 and 2
ONC controlled by SW10
Local switch control
JU13
1 and 2
OND controlled by SW11
Local switch control
JU14
1 and 2
AUXOND controlled by SW12
Local switch control
JU5
2 and 3
AUXONA controlled by U2, MAX7313 with SMBus
SMBus or computer control
JU6
2 and 3
ONA controlled by U2, MAX7313 with SMBus
SMBus or computer control
JU7
2 and 3
ONB controlled by U2, MAX7313 with SMBus
SMBus or computer control
JU8
2 and 3
AUXONB controlled by U2, MAX7313 with SMBus
SMBus or computer control
JU11
2 and 3
AUXONC controlled by U3, MAX7313 with SMBus
SMBus or computer control
JU12
2 and 3
ONC controlled by U3, MAX7313 with SMBus
SMBus or computer control
JU13
2 and 3
OND controlled by U3, MAX7313 with SMBus
SMBus or computer control
JU14
2 and 3
AUXOND controlled by U3, MAX7313 with SMBus
SMBus or computer control
Figure 1. The MAX5960L Evaluation Software Main Window for Reading Current EV Kit Status and Sending Commands
_______________________________________________________________________________________
9
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
MAX5960L Evaluation Kit/
Evaluation System
Detailed Description
of Software
A mouse or the keyboard’s Tab key is used to navigate
various items on the Main Window. Most of the main
window’s available functions and a few more can be
evaluated by using the pulldown menu. The software
features a demo mode that is available using the
View|Demo Mode pulldown menu.
Software Startup
Upon starting the program, the MAX5960L EV kit software automatically detects U2, U3, and U4 addresses
and configures their I/O. See Tables 7 and 8 for U2, U3,
and U4 configuration by the software. The MAX5960L EV
kit’s various status signals are then updated by the program approximately every 500ms. Use the checkboxes
to enable/disable various EV kit functions and then
select the Execute Command button to send the commands to the respective I/O expander and/or U1.
Deselecting a checkbox disables the command.
To force a respective channel ON, select the respective
channel’s latching FORCE ON button. To turn OFF a
forced ON channel, select the button again. When a
respective channel is forced ON, that particular channel’s controls are disabled until force ON is turned off.
The software’s Status area provides information on the
various MAX5960L and PCI Express system signal’s
condition. Each MAX7313 I/O expander SMBus
address is provided in hexadecimal and decimal format, respectively. The left bottom status bar of the main
window provides the CMAXQUSB interface board communication status. The right bottom status bar provides
the current program status and SMBus communication
status with respect to the respective I/O expander.
The MAX5960L EV kit software configures the CMAXQUSB
interface board’s SMBus communication speed to
400kHz by default. The speed can be reduced to
100kHz if required, by selecting the pulldown menu’s
View|2-Wire Speed|100kHz selection. This may be
required if slower SMBus or 2-wire devices are connected to the bus on the EV kit.
General-Purpose 2-Wire Interface Utility
The general-purpose 2-wire interface utility can also be
used to communicate with the MAX7313 and thus control or read back signals from the MAX7313 and/or
MAX5960L. Use the View|Interface pulldown menu to
access the utility. The utility configures the SMBus interface parameters such as start and stop bits, acknowledgments, and clock timing. The 2-wire interface
screen allows you to send general-purpose SMBus
commands using the SMBusWriteByte and
SMBusReadByte. The interface utility only accepts
and outputs hexadecimal number format.
The Hunt for active listeners button scans the entire
2-wire address space, reporting each address that is
acknowledged. The SMBusWriteByte transmits the
device address, command, and 1 byte of data. The
SMBusReadByte transmits the device address, a command, and then retransmits the device address and
reads 1 byte of data.
Table 7. MAX7313 I/O Port Configuration/Function for U2 and U3
MAX7313
PORT I/O
PORT P7
(BIT D7)
PORT P6
(BIT D6)
PORT P5
(BIT D5)
PORT P4
(BIT D4)
PORT P3
(BIT D3)
PORT P2
(BIT D2)
PORT P1
(BIT D1)
PORT P0
(BIT D0)
PORT
CONFIG
OUTPUT
OUTPUT
INPUT
INPUT
OUTPUT
OUTPUT
INPUT
INPUT
EV KIT
FUNCTION
YELLOW
LED
GREEN LED
PRES-DET
FAULT
AUXON
ON
OUT
MRL
Table 8. MAX7313 I/O Port Configuration/Function for U4
MAX7313
PORT I/O
PORT P7
(BIT D7)
PORT P6
(BIT D6)
PORT P5
(BIT D5)
PORT P4
(BIT D4)
PORT P3
(BIT D3)
PORT P2
(BIT D2)
PORT P1
(BIT D1)
PORT P0
(BIT D0)
PORT
CONFIG
OUTPUT
OUTPUT
OUTPUT
OUTPUT
INPUT
INPUT
INPUT
INPUT
FOND
FONC
FONB
FONA
PWRGDD
PWRGDC
PWRGDB
PWRGDA
EV KIT
FUNCTION
10
______________________________________________________________________________________
MAX5960L Evaluation Kit/
Evaluation System
General Troubleshooting
Problem: Software reports it cannot find the interface board.
•
Is the interface board power LED lit?
•
Is the USB communications cable connected?
•
Has Windows plug-and-play detected the board?
Bring up Control Panel->System->Device
Manager, and look at what device nodes are indicated for USB. If there is an “unknown device” node
attached to the USB, delete it—this forces plugand-play to try again.
Problem: Unable to find U2, U3, or U4 (MAX7313).
• Is power applied to the MAX5960L EV kit VIN2 and
VIN3 banana jacks? This is required for powering
U2, U3, and U4.
•
Are the SCL and SDA signals pulled up to VDD?
The CMAXQUSB interface board dip switch SW1
enables the on-board resistors on the interface
board. There must be pullup resistors somewhere
for the SMBus SCL and SDA signals.
•
If using jumper wires to connect, are the SCL and
SDA signals swapped? Is the ground return missing?
Figure 2. The 2-Wire Interface Window Provides Direct, Low-Level Access to the MAX5960L with the MAX7313 and SMBus 2-Wire
Interface
______________________________________________________________________________________
11
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
For information on the differences between a 2-wire and
an SMBus interface, read Application Note: Comparing
the I2C Bus to the SMBus at www.maxim-ic.com.
+3.3VAUX
3.3AUXOB
R3
10kΩ
C1
0.1μF
PWRGDB
FAULTB
C2
OPEN
R2
10kΩ
3.3AUXOA
R4
10kΩ
3.3GB
PWRGDA
R1
10kΩ
3.3AUXOA
+3.3VAUX
+3.3VAUX
3.3SB-
FAULTA
3.3SB+
+3.3V
3.3GA
PGND
3.3SA-
12GB
TP3
4
ONB
SW1
5
1
ATTN1
6
OUT1
1
7
OUT2
8
OUT2
9
10
11
12
OND
13
AUXOND
14
62
3.3GA
FAULTA
63
61
N.C.
64
3.3SA-
65
PGND
3.3AUXIN
66
PWRGDA
67
3.3AUXOA
68
3.3AUXOA
3.3AUXIN
3.3AUXIN
3.3AUXOB
PWRGDB
3.3AUXOB
3.3GB
3.3SB-
69
3.3SA+
12SA+
ONB
AUXONA
INPUT1
ONA
OUTPUT1
INPUT3
INPUT2
U1
OUTPUT2
OUTPUT3
INPUT4
N.C.
MAX5960L
FOND
OUTPUT4
FONA
PRES-DETD
PRES-DETA
OND
FONB
AUXOND
PRES-DETB
GND
3.3SA+
+3.3V
60
59
12GA
58
+3.3VAUX
12SA-
57
12SA+
VIN1
56
R11
10kΩ
AUXONA
55
SW3
ONA
54
1
12SC-
12GD
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
GND
TIM
37
38
39
52
1
OUT4
51
OUT4
50
R9
OPEN
FONA
49
PRES-DETA
48
JU3
R10
OPEN
FONB
47
46
3.3SD+
+3.3V
3.3SD-
45
44
3.3GD
43
12SD+
VIN1
42
12SD-
41
12GD
VIN1
D1
40
3.3AUXOC
FAULTC
R13
10kΩ
C3
0.1μF
C4
OPEN
3.3AUXOD
+3.3VAUX
3.3GC
R17
OPEN
R16
10kΩ
+3.3VAUX
+3.3VAUX
PWRGDC
R14
10kΩ
FAULTD
R15
10kΩ
3.3AUXOC
3.3AUXOD
PWRGDD
TP11
TP12
TP13
TP14
TP15
TP16
TP17
TP18
Figure 3. MAX5960L EV Kit Schematic, Quad PCI Express Controller
12
3
ATTN4
INPUT4
C5
1μF
3.3SC-
TP8
SW4
OUT3
R18
OPEN
PGND
R12
10kΩ
OUT3
53
12GC
3.3SC+
+3.3V
3
ATTN3
INPUT3
12VIN
12SD-
PORADJ
12SC+
FAULTD
20
12SC-
12SD+
PWRGDD
19
12SC+
VIN1
3.3GD
AUXONC
PGND
AUXONC
ONC
3.3AUXOD
18
3.3AUXOD
ONC
3.3SD-
3.3AUXIN
17
3.3SD+
PRES-DETC
3.3AUXIN
16
PRES-DETC
FONC
3.3AUXOC
15
+3.3VAUX
TP7
PRES-DETB
FONC
3.3AUXOC
JU2
70
AUXONB
FOND
PRES-DETD
R8
OPEN
71
3.3AUXIN
ATTN2
JU1
72
OUT1
SW2
R7
OPEN
73
12GA
PWRGDC
TP5
74
12SA-
FAULTC
3
75
12SB+
3.3GC
R6
10kΩ
3
3
AUXONB
3.3SC-
R5
10kΩ
76
12SB-
3.3SC+
+3.3VAUX
2
77
FAULTB
1
12SB12SB+
VIN1
12GB
+3.3VAUX
78
3.3SB+
79
N.C.
80
12GC
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
MAX5960L Evaluation Kit/
Evaluation System
______________________________________________________________________________________
JU4
MAX5960L Evaluation Kit/
Evaluation System
(12V)
GND
C10
1μF
12VA
TP20
12SA3
N1S
N1
2 1
R30
1kΩ
TP21
8 7
12SA+
VIN1
R32
0.008Ω
1%
VIN1
VIN1
R33
750Ω
12GA
R31
OPEN
3.3VA
TP26
3
N3
2 1
R37
150Ω
8 7
C19
3300μF
6.3V
TP29
3.3SA+
+3.3V
R39
0.005Ω
1%
3.3GA
C18
10μF
R38
OPEN
GND
R40
0.005Ω
1%
7 8
4
R36
1kΩ
12GC
12VC
D3
C21
1μF
3.3VC
TP32
N4
3
GND
N4S
1 2
6 5
R41
150Ω
3.3GC
4
TP31
3.3AUXOA
C17
OPEN
N2S
1 2
3.3VC
3.3SC+
+3.3V
3.3SC-
C34
1μF
GND
+3.3V
GND
3.3VAUXA
TP33
3.3VAUXA
3
C14
OPEN
3.3SA-
5 6
TP27
4
3.3VA
D4
N2
R35
OPEN
+3.3V
VIN2 TP28
+3.3V
N3S
7 8
TP24
(3.3V)
C13
1500μF
16V
C11
OPEN
C16
1μF
R34
0.008Ω
1%
C15
1μF
12VC
TP25
12SC-
6 5
3.3VA
GND
TP23
12SC+
VIN1
5 6
4
12VA
D2
GND
C12
10μF
TP22
VIN1
R44
150Ω
C20
OPEN
R43
150kΩ
3.3VAUXA
D6
GND
12VD
3
N5
2 1
R45
1kΩ
TP35
8 7
R47
0.008Ω
1%
VIN1
12VB
TP34
12SB+
VIN1
12SB-
C23
1μF
N5S
VIN1
+3.3VAUX
VIN3 TP40
R46
OPEN
C35
100μF
6.3V
TP41
+3.3V
3.3VB
3.3VB
TP38
3
N7S
2 1
R51
150Ω
R48
0.008Ω
1%
N7
8 7
7 8
N6
1 2
12VD
D9
3.3SD-
R54
0.005Ω
1%
3.3VD
3.3VAUXB
TP44
3.3GB
C28
OPEN
3.3VAUXB
7 8
N8
3
C32
1μF
TP46 TP47 TP48
R57
150Ω
3.3VAUXB
D12
R55
OPEN
C30
OPEN
GND
N8S
1 2
6 5
TP42
3.3AUXOB
GND
C31
1μF
3.3VB
TP43
R56
150Ω
TP39
R52
OPEN
R50
1kΩ
+3.3V
3.3SD+
+3.3V
4
3.3VB
D10
12GD
C25
OPEN
3.3SB
5 6
GND
N6S
R49
OPEN
3.3SB+
+3.3V
R53
0.005Ω
1%
3
4
TP36
C29
10μF
C26
1μF
12VD
TP37
12SD-
6 5
12GB
C24
OPEN
C27
1μF
12SD+
VIN1
5 6
4
12VB
D8
GND
3.3VAUXC
C22
1μF
3.3VC
D7
12VB
GND
3.3VAUXC
TP30
3.3AUXOC
3.3VC
D5
R42
OPEN
4
3.3GD
3.3VAUXD
TP45
3.3VD
D11
3.3VAUXOD
R58
150Ω
3.3VAUXD
C33
1μF
GND
3.3VD
D13
Figure 4. MAX5960L EV Kit Schematic, Quad PCI Express Hot Swap
______________________________________________________________________________________
13
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
12VC
12VA
JU7
1
2
3 SW7
1
3
2
+3.3VAUX
R78
51kΩ
ONB
JU9
MRLB
R76
10kΩ
+3.3VAUX
+3.3VAUX
ONB
FOND
FONC
12
11
10
9
8
7
FONA
FONB
12
11
10
9
8
7
AUXONB
2
SW8
R79
51kΩ
6
13
P10
P9
P8
GND
P7
6
1
JU8
P6
P5
3
13
P10
P9
P8
GND
P7
P6
+3.3VAUX
R75
150Ω
R74
150Ω
PWRGDD
3
1
+3.3VAUX
R77
3.3kΩ
YELLOW
D15
OUT2
GREEN
D14
+3.3VAUX
PRES-DETA
2
5
14
5
14
R70
51kΩ
4
U2
3
U4
3
AUXONB
16
15
R71
51kΩ
16
2
17
2
17
AD1
AD2
AD1
AD2
R81
150Ω
R80
150Ω
18
R82
10kΩ
R83
10kΩ
A41
R84
10kΩ
J9-1
R93
10kΩ
19
20
21
22
23
24
A40
SCL
SDA
PWRGDB
PWRGDA
PWRGDC
GREEN
YELLOW
19
20
21
SCL
A42
R104
10kΩ
D17
C42
0.1μF
+3.3VAUX
R103
10kΩ
+3.3VAUX
+3.3VAUX
JU13
J9-19
J9-17
J9-15
1
3
2
J9-16
J9-20
J9-18
J9-14
N.C.
N.C.
J9-12
J9-10
J9-8
J9-6
J9-4
J9-2
N.C.
ALERTIN
J9-13
SUSPENDOUT
J9-9
SCL
SDA
J9-11
J9-7
J9-5
J9-3
2
SW11
R95
51kΩ
J9
FEMALE CONNECTOR 2 x 10
1
3
+3.3VAUX
OND
JU15
MRLD
+3.3VAUX
D16
C40
0.1μF
N.C.
OND
OUT4
12
11
10
9
8
7
R96
51kΩ
6
3
13
P10
P9
P8
GND
P7
P6
+3.3VAUX
R92
150Ω
R91
150Ω
1
ALERTIN
SUSPENDOUT
SCL
SDA
VDD
2
14
5
15
2
U3
3
TP50
TP51
17
AD1
AD2
18
SCL
SDA
R98
150Ω
2
1
JU12
GREEN
SCL
SDA
2
SW9
+3.3VAUX
D21
D20
+3.3VAUX
R99
10kΩ
C41
0.1μF
3
+3.3VAUX
ONC 1
+3.3VAUX
+3.3VAUX
3
YELLOW
19
20
21
22
23
24
JU16
MRLC
V+
R97
150Ω
3
1
+3.3VAUX
R90
10kΩ
INT/O16
1
TP53 TP54
GND
SCL
SDA
VDD
AUXOND
16
2
R111
3.3kΩ
R89
51kΩ
JU11 AUXONC
1
2
SW10
AUXONC
+3.3VAUX
3
MAX7313
4
+3.3VAUX
R88
51kΩ
AUXOND JU14
1
2
3 SW12
+3.3VAUX
R94
3.3kΩ
YELLOW
22
D19
+3.3VAUX
+3.3VAUX
23
3
1
+3.3VAUX
GREEN
SDA
SW5
+3.3VAUX
2
ONA
D18
R102
10kΩ
SCL
SDA
V+
INT/O16
1
18
SCL
SDA
V+
1
JU6
+3.3VAUX
2
ONA
24
JU10
MRLA
INT/O16
1
R73
10kΩ
3
+3.3VAUX
JU5 AUXONA
1
1
2
SW6
3
R72
3.3kΩ
MAX7313
4
15
2
P0
3
P0
AUXONA
+3.3VAUX
P3
MAX7313
P12
OUT1
P1
+3.3VAUX
FAULTA
P4
P12
FAULTB
P4
P13
PRES-DETB
P3
P13
P11
P5
P11
P2
P14
P2
P14
PRES-DETC
P5
P11
FAULTC
P4
P12
FAULTD
P15
P1
P15
P3
P13
PRES-DETD
AD0
P0
AD0
P2
P14
OUT3
P1
P15
14
AD0
ONC
R100
10kΩ
R101
10kΩ
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
MAX5960L Evaluation Kit/
Evaluation System
Figure 5. MAX5960L EV Kit Schematic, SMBus I/O Control
______________________________________________________________________________________
MAX5960L Evaluation Kit/
Evaluation System
N1S
N3S
3.3AUXOA
PRES-DETA
PRES-DETA
PRES-DETA
PRES-DETA
PRSNT1#
+12V
+12V
GND
JTAG2
JTAG3
JTAG4
JTAG5
+3.3V
+3.3V
PERST#
GND
REFCLK+
REFCLKGND
PERP0
PERN0
GND
RSVD
GND
PERP1
PERN1
GND
GND
PERP2
PERN2
GND
GND
PERP3
PERN3
GND
RSVD
RSVD
GND
PERP4
PERN4
GND
GND
PERP5
PERN5
GND
GND
PERP6
PERN6
GND
GND
PERP7
PERN7
GND
RSVD
GND
PERP8
PERN8
GND
GND
PERP9
PERN9
GND
GND
PERP10
PERN10
GND
GND
PERP11
PERN11
GND
GND
PERP12
PERN12
GND
GND
PERP13
PERN13
GND
GND
PERP14
PERN14
GND
GND
PERP15
PERN15
GND
+12V
+12V
+12V
GND
SMCLK
SMDAT
GND
+3.3V
JTAG1
3.3VAUX
WAKE#
RSVD
GND
PETP0
PETN0
GND
PRSNT2#
GND
PETP1
PETN1
GND
GND
PETP2
PETN2
GND
GND
PETP3
PETN3
GND
RSVD
PRSNT2#
GND
PETP4
PETN4
GND
GND
PETP5
PETN5
GND
GND
PETP6
PETN6
GND
GND
PETP7
PETN7
GND
PRSNT2#
GND
PETP8
PETN8
GND
GND
PETP9
PETN9
GND
GND
PETP10
PETN10
GND
GND
PETP11
PETN11
GND
GND
PETP12
PETN12
GND
GND
PETP13
PETN13
GND
GND
PETP14
PETN14
GND
GND
PETP15
PETN15
GND
PRSNT2#
RSVD
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
J2-A
(CHANNEL B)
J1-A
(CHANNEL A)
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
B33
B34
B35
B36
B37
B38
B39
B40
B41
B42
B43
B44
B45
B46
B47
B48
B49
B50
B51
B52
B53
B54
B55
B56
B57
B58
B59
B60
B61
B62
B63
B64
B65
B66
B67
B68
B69
B70
B71
B72
B73
B74
B75
B76
B77
B78
B79
B80
B81
B82
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
A41
A42
A43
A44
A45
A46
A47
A48
A49
A50
A51
A52
A53
A54
A55
A56
A57
A58
A59
A60
A61
A62
A63
A64
A65
A66
A67
A68
A69
A70
A71
A72
A73
A74
A75
A76
A77
A78
A79
A80
A81
A82
N5S
N1S
N7S
N3S
3.3AUXOB
PERST#_J1
J6
(CHANNEL B)
J5
(CHANNEL A)
J5-1
PERST#_J1
J6-1
PERST#_J2
J5-2
PRES-DETA
J6-2
PRES-DETB
J5-3
ONA
J6-3
ONB
J5-4
AUXONA
J6-4
AUXONB
J5-5
FAULTA
J6-5
FAULTB
J5-6
OUT1
J6-6
OUT2
J5-7
PWRGDA
J6-7
PWRGB
J5-8
PRES-DETD
J6-8
J1-B
PRES-DETB
PRES-DETB
PRES-DETB
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
B33
B34
B35
B36
B37
B38
B39
B40
B41
B42
B43
B44
B45
B46
B47
B48
B49
B50
B51
B52
B53
B54
B55
B56
B57
B58
B59
B60
B61
B62
B63
B64
B65
B66
B67
B68
B69
B70
B71
B72
B73
B74
B75
B76
B77
B78
B79
B80
B81
B82
PRSNT1#
+12V
+12V
GND
JTAG2
JTAG3
JTAG4
JTAG5
+3.3V
+3.3V
PERST#
GND
REFCLK+
REFCLKGND
PERP0
PERN0
GND
RSVD
GND
PERP1
PERN1
GND
GND
PERP2
PERN2
GND
GND
PERP3
PERN3
GND
RSVD
RSVD
GND
PERP4
PERN4
GND
GND
PERP5
PERN5
GND
GND
PERP6
PERN6
GND
GND
PERP7
PERN7
GND
RSVD
GND
PERP8
PERN8
GND
GND
PERP9
PERN9
GND
GND
PERP10
PERN10
GND
GND
PERP11
PERN11
GND
GND
PERP12
PERN12
GND
GND
PERP13
PERN13
GND
GND
PERP14
PERN14
GND
GND
PERP15
PERN15
GND
+12V
+12V
+12V
GND
SMCLK
SMDAT
GND
+3.3V
JTAG1
3.3VAUX
WAKE#
RSVD
GND
PETP0
PETN0
GND
PRSNT2#
GND
PETP1
PETN1
GND
GND
PETP2
PETN2
GND
GND
PETP3
PETN3
GND
RSVD
PRSNT2#
GND
PETP4
PETN4
GND
GND
PETP5
PETN5
GND
GND
PETP6
PETN6
GND
GND
PETP7
PETN7
GND
PRSNT2#
GND
PETP8
PETN8
GND
GND
PETP9
PETN9
GND
GND
PETP10
PETN10
GND
GND
PETP11
PETN11
GND
GND
PETP12
PETN12
GND
GND
PETP13
PETN13
GND
GND
PETP14
PETN14
GND
GND
PETP15
PETN15
GND
PRSNT2#
RSVD
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
A41
A42
A43
A44
A45
A46
A47
A48
A49
A50
A51
A52
A53
A54
A55
A56
A57
A58
A59
A60
A61
A62
A63
A64
A65
A66
A67
A68
A69
A70
A71
A72
A73
A74
A75
A76
A77
A78
A79
A80
A81
A82
N5S
N7S
PERST#_J2
J2-B
Figure 6. MAX5960L EV Kit Schematic, PCI Express x16 Channels A and B
______________________________________________________________________________________
15
J4-A
(CHANNEL D)
J3-A
(CHANNEL C)
N2S
N4S
3.3AUXOC
PRES-DETC
PRES-DETC
PRSNT1#
+12V
+12V
GND
JTAG2
JTAG3
JTAG4
JTAG5
+3.3V
+3.3V
PERST#
GND
REFCLK+
REFCLKGND
PERP0
PERN0
GND
RSVD
GND
PERP1
PERN1
GND
GND
PERP2
PERN2
GND
GND
PERP3
PERN3
GND
RSVD
RSVD
GND
PERP4
PERN4
GND
GND
PERP5
PERN5
GND
GND
PERP6
PERN6
GND
GND
PERP7
PERN7
GND
RSVD
GND
PERP8
PERN8
GND
GND
PERP9
PERN9
GND
GND
PERP10
PERN10
GND
GND
PERP11
PERN11
GND
GND
PERP12
PERN12
GND
GND
PERP13
PERN13
GND
GND
PERP14
PERN14
GND
GND
PERP15
PERN15
GND
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
A41
A42
A43
A44
A45
A46
A47
A48
A49
A50
A51
A52
A53
A54
A55
A56
A57
A58
A59
A60
A61
A62
A63
A64
A65
A66
A67
A68
A69
A70
A71
A72
A73
A74
A75
A76
A77
A78
A79
A80
A81
A82
N6S
N2S
N8S
N4S
3.3AUXOD
PERST#_J3
J8
(CHANNEL D)
J7
(CHANNEL C)
J7-1
PERST#_J3
J8-1
PERST#_J4
J7-2
PRES-DETC
J8-2
PRES-DETD
J7-3
ONC
J8-3
OND
J7-4
AUXONC
J8-4
AUXOND
J7-5
FAULTC
J8-5
FAULTD
J7-6
OUT3
J8-6
OUT4
J7-7
PWRGDC
J8-7
PWRGDD
J7-8
PRES-DETD
J8-8
J3-B
PRES-DETD
PRES-DETD
PRES-DETD
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
B33
B34
B35
B36
B37
B38
B39
B40
B41
B42
B43
B44
B45
B46
B47
B48
B49
B50
B51
B52
B53
B54
B55
B56
B57
B58
B59
B60
B61
B62
B63
B64
B65
B66
B67
B68
B69
B70
B71
B72
B73
B74
B75
B76
B77
B78
B79
B80
B81
B82
+12V
+12V
+12V
GND
SMCLK
SMDAT
GND
+3.3V
JTAG1
3.3VAUX
WAKE#
RSVD
GND
PETP0
PETN0
GND
PRSNT2#
GND
PETP1
PETN1
GND
GND
PETP2
PETN2
GND
GND
PETP3
PETN3
GND
RSVD
PRSNT2#
GND
PETP4
PETN4
GND
GND
PETP5
PETN5
GND
GND
PETP6
PETN6
GND
GND
PETP7
PETN7
GND
PRSNT2#
GND
PETP8
PETN8
GND
GND
PETP9
PETN9
GND
GND
PETP10
PETN10
GND
GND
PETP11
PETN11
GND
GND
PETP12
PETN12
GND
GND
PETP13
PETN13
GND
GND
PETP14
PETN14
GND
GND
PETP15
PETN15
GND
PRSNT2#
RSVD
PCI-16EX
PCI-16EX
PRES-DETC
+12V
+12V
+12V
GND
SMCLK
SMDAT
GND
+3.3V
JTAG1
3.3VAUX
WAKE#
RSVD
GND
PETP0
PETN0
GND
PRSNT2#
GND
PETP1
PETN1
GND
GND
PETP2
PETN2
GND
GND
PETP3
PETN3
GND
RSVD
PRSNT2#
GND
PETP4
PETN4
GND
GND
PETP5
PETN5
GND
GND
PETP6
PETN6
GND
GND
PETP7
PETN7
GND
PRSNT2#
GND
PETP8
PETN8
GND
GND
PETP9
PETN9
GND
GND
PETP10
PETN10
GND
GND
PETP11
PETN11
GND
GND
PETP12
PETN12
GND
GND
PETP13
PETN13
GND
GND
PETP14
PETN14
GND
GND
PETP15
PETN15
GND
PRSNT2#
RSVD
PCI-16EX
PRES-DETC
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
B33
B34
B35
B36
B37
B38
B39
B40
B41
B42
B43
B44
B45
B46
B47
B48
B49
B50
B51
B52
B53
B54
B55
B56
B57
B58
B59
B60
B61
B62
B63
B64
B65
B66
B67
B68
B69
B70
B71
B72
B73
B74
B75
B76
B77
B78
B79
B80
B81
B82
PCI-16EX
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
MAX5960L Evaluation Kit/
Evaluation System
PRSNT1#
+12V
+12V
GND
JTAG2
JTAG3
JTAG4
JTAG5
+3.3V
+3.3V
PERST#
GND
REFCLK+
REFCLKGND
PERP0
PERN0
GND
RSVD
GND
PERP1
PERN1
GND
GND
PERP2
PERN2
GND
GND
PERP3
PERN3
GND
RSVD
RSVD
GND
PERP4
PERN4
GND
GND
PERP5
PERN5
GND
GND
PERP6
PERN6
GND
GND
PERP7
PERN7
GND
RSVD
GND
PERP8
PERN8
GND
GND
PERP9
PERN9
GND
GND
PERP10
PERN10
GND
GND
PERP11
PERN11
GND
GND
PERP12
PERN12
GND
GND
PERP13
PERN13
GND
GND
PERP14
PERN14
GND
GND
PERP15
PERN15
GND
J4-B
Figure 7. MAX5960L EV Kit Schematic, PCI Express x16 Channels C and D
16
______________________________________________________________________________________
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
A41
A42
A43
A44
A45
A46
A47
A48
A49
A50
A51
A52
A53
A54
A55
A56
A57
A58
A59
A60
A61
A62
A63
A64
A65
A66
A67
A68
A69
A70
A71
A72
A73
A74
A75
A76
A77
A78
A79
A80
A81
A82
N6S
N8S
PERST#_J4
MAX5960L Evaluation Kit/
Evaluation System
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
Figure 8. MAX5960L EV Kit Component Placement Guide—Component Side
______________________________________________________________________________________
17
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
MAX5960L Evaluation Kit/
Evaluation System
Figure 9. MAX5960L EV Kit PCB Layout—Component Side
18
______________________________________________________________________________________
MAX5960L Evaluation Kit/
Evaluation System
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
Figure 10. MAX5960L EV Kit PCB Layout—Inner Layer, Ground Plane Layer 2
______________________________________________________________________________________
19
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
MAX5960L Evaluation Kit/
Evaluation System
Figure 11. MAX5960L EV Kit PCB Layout—Inner Layer, Power Plane Layer 3
20
______________________________________________________________________________________
MAX5960L Evaluation Kit/
Evaluation System
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
Figure 12. MAX5960L EV Kit PCB Layout—Inner Layer, Ground Plane Layer 4
______________________________________________________________________________________
21
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
MAX5960L Evaluation Kit/
Evaluation System
Figure 13. MAX5960L EV Kit PCB Layout—Inner Layer, Signal Layer 5
22
______________________________________________________________________________________
MAX5960L Evaluation Kit/
Evaluation System
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
Figure 14. MAX5960L EV Kit PCB Layout—Solder Side
______________________________________________________________________________________
23
Evaluate: MAX5959A/MAX5959L/MAX5960A/MAX5960L
MAX5960L Evaluation Kit/
Evaluation System
Figure 15. MAX5960L EV Kit Component Placement Guide—Solder Side
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
24 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2007 Maxim Integrated Products
Janet Freed
is a registered trademark of Maxim Integrated Products. Inc.
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