HMC792ALP4ETR

HMC792ALP4E v00.0613 ATTENUATORS - DIGITAL - SMT 0.25 LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR, DC - 6 GHz Typical Applications Features The HMC792ALP4E is ideal for: 0.25 dB LSB Steps to 15.75 dB • Cellular/3G Infrastructure Power-Up State Selection • WiBro / WiMAX / 4G High Input IP3: +53 dBm • Microwave Radio & VSAT Low Insertion Loss: 1.8 dB @ 2.0 GHz • Test Equipment and Sensors TTL/CMOS Compatible, Serial, Parallel or Latched Parallel Control • IF & RF Applications ±0.1 dB Typical Step Error Single +3V or +5V Supply 24 Lead 4x4mm SMT Package: 16mm2 Functional Diagram General Description The HMC792ALP4E is a broadband 6-bit GaAs IC Digital Attenuator in a low cost leadless SMT package. This versatile digital attenuator incorporates off-chip AC ground capacitors for near DC operation, making it suitable for a wide variety of RF and IF applications. The dual mode control interface is CMOS/TTL compatible, and accepts either a three wire serial input or a 6 bit parallel word. The HMC792ALP4E also features a user selectable power up state and a serial output port for cascading other Hittite serial controlled components. The HMC792ALP4E is housed in a RoHS compliant 4x4 mm QFN leadless package, and requires no external matching components. Electrical Specifications, TA = +25° C, Vctl = 0/+Vdd Parameter Frequency (GHz) Typ. Max. Vdd = +3V Min. Typ. Max. Vdd = +5V 2.4 4.0 1.8 2.3 2.4 4.0 Units Insertion Loss DC - 3.0 GHz 3.0 - 6.0 GHz 1.8 2.3 Attenuation Range DC - 6.0 GHz 15.75 15.75 dB Return Loss (RF1, RF2, All Atten. States) DC - 6.0 GHz 18 18 dB Attenuation Accuracy: (Referenced to Insertion Loss) All Attenuation States DC - 6.0 GHz ± (0.2 + 3% of Atten. Setting) Max. dB dB dB dB dB dB 0.05 - 0.15 GHz 0.15 - 6.0 GHz 22 27 22 31 dBm dBm Input Third Order Intercept Point (Two-Tone Input Power= 10 dBm Each Tone) DC - 6.0 GHz 53 53 dBm Switching Characteristics DC - 6.0 GHz 110 150 110 150 ns ns 2.1 2.2 mA Input Power for 0.1 dB Compression tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) Supply Current 1 Min. DC - 6.0 GHz Information furnished by Analog Devices is believed to be accurate and reliable. However, no For price,2 delivery, andDrive, to place orders: AnalogMA Devices, For price, delivery andDevices to place orders: Hittite Microwave Elizabeth Chelmsford, 01824Inc., responsibility is assumed by Analog for its use, nor for any infringements of patents orCorporation, other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 rights of third parties that may result from its use. Specifications subject to change without notice. No Phone: 978-250-3343 Fax: 978-250-3373 Order at www.hittite.com Phone: On-line 781-329-4700 • Order online at www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Application Support: Phone: 1-800-ANALOG-D Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 978-250-3343 or apps@hittite.com HMC792ALP4E v00.0613 0.25 LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR, DC - 6 GHz Insertion Loss vs. Temperature Normalized Attenuation [1] [1] (Only Major States are Shown) -1 -2 -3 -4 -5 -5 -10 -15 -20 0 1 2 3 4 5 6 0 1 2 FREQUENCY (GHz) +25 C +85 C 4 5 6 7 8 -40 C Output Return Loss [1] (Only Major States are Shown) (Only Major States are Shown) 0 0 -5 -5 -10 -10 RETURN LOSS (dB) RETURN LOSS (dB) 3 FREQUENCY (GHz) Input Return Loss [1] -15 -20 -25 -30 -35 -15 -20 -25 -30 -35 -40 -40 0 1 2 3 4 5 6 0 1 2 FREQUENCY (GHz) 3 4 5 6 FREQUENCY (GHz) Bit Error vs. Attenuation State [2] Bit Error vs. Attenuation State 1 1 0.8 0.8 0.6 0.6 0.4 0.4 BIT ERROR (dB) BIT ERROR (dB) ATTENUATORS - DIGITAL - SMT 0 NORMALIZED ATTENUATION (dB) INSERTION LOSS (dB) 0 0.2 0 -0.2 -0.4 0.2 0 -0.2 -0.4 -0.6 -0.6 -0.8 -0.8 -1 -1 0 4 8 12 16 100 MHz 1 GHz 2 GHz 4 GHz 0 4 8 12 16 ATTENUATION STATE (dB) ATTENUATION STATE (dB) 6 GHz 900 MHz 2 GHz 4 GHz 6 GHz [1] Data taken with broadband DC blocks on RF ports, Vdd = 5V [2] Data taken with ACG capacitors, C4, C5 & C6 removed. See application circuit and note. Information furnished by Analog Devices is believed to be accurate and reliable. However, no For price,2 delivery, andDrive, to place orders: AnalogMA Devices, For price, delivery andDevices to place orders: Hittite Microwave Elizabeth Chelmsford, 01824Inc., responsibility is assumed by Analog for its use, nor for any infringements of patents orCorporation, other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 rights of third parties that may result from its use. Specifications subject to change without notice. No Phone: 978-250-3343 Fax: 978-250-3373 Order at www.hittite.com Phone: On-line 781-329-4700 • Order online at www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Application Support: Phone: 1-800-ANALOG-D Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 978-250-3343 or apps@hittite.com 2 HMC792ALP4E v00.0613 0.25 LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR, DC - 6 GHz Bit Error vs. Frequency Bit Error vs. Frequency [2] 2 1.5 1.5 1 1 BIT ERROR (dB) BIT ERROR (dB) (Only Major States are Shown) 2 0.5 0 -0.5 0.5 0 -0.5 -1 -1 -1.5 -1.5 -2 -2 0 1 2 3 4 5 6 0 1 2 FREQUENCY (GHz) 0.25 dB 0.5 dB 1 dB 3 4 5 6 FREQUENCY (GHz) 2 dB 4 dB 8 dB 0.25 dB 0.5 dB 1 dB 15.75 dB Worst Case Step Error Between Successive Attenuation States (Only Major States are Shown) 2 dB 4 dB 8 dB 15.75 dB Input IP3 at 25 oC (Major Bit States at Each Frequency is Shown) 0.5 70 0.4 65 0.3 60 0.2 IP3 (dBm) STEP ERROR (dB) ATTENUATORS - DIGITAL - SMT (Only Major States are Shown) 0.1 0 -0.1 55 50 45 -0.2 40 -0.3 35 -0.4 -0.5 30 0 1 2 3 4 5 6 0 1 2 FREQUENCY (GHz) 0.25 dB 0.5 dB 1 dB 2 dB 4 dB 8 dB 0 dB 0.25 dB 0.5 dB 15.75 dB Input IP3 at -40 oC (Major Bit States at Each Frequency is Shown) 4 5 6 70 65 65 60 60 55 55 45 50 45 40 40 35 35 30 8 dB 15.75 dB Frequency is Shown) 70 50 1 dB 4 dB 2 dB Input IP3 at 85 oC (Major Bit States at Each IP3 (dBm) IP3 (dBm) 3 FREQUENCY (GHz) 30 0 1 2 3 4 5 6 0 1 2 FREQUENCY (GHz) 0 dB 0.25 dB 0.5 dB 1 dB 4 dB 2 dB 3 4 5 6 FREQUENCY (GHz) 8 dB 15.75 dB 0 dB 0.25 dB 0.5 dB 1 dB 4 dB 2 dB 8 dB 15.75 dB [2] Data taken with ACG capacitors, C4, C5 & C6 removed. See application circuit and note. 3 Information furnished by Analog Devices is believed to be accurate and reliable. However, no For price,2 delivery, andDrive, to place orders: AnalogMA Devices, For price, delivery andDevices to place orders: Hittite Microwave Elizabeth Chelmsford, 01824Inc., responsibility is assumed by Analog for its use, nor for any infringements of patents orCorporation, other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 rights of third parties that may result from its use. Specifications subject to change without notice. No Phone: 978-250-3343 Fax: 978-250-3373 Order at www.hittite.com Phone: On-line 781-329-4700 • Order online at www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Application Support: Phone: 1-800-ANALOG-D Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 978-250-3343 or apps@hittite.com HMC792ALP4E v00.0613 0.25 LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR, DC - 6 GHz 32 34 30 32 30 28 26 24 28 26 24 22 22 20 20 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 FREQUENCY (GHz) 0.8 0.9 1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 FREQUENCY (GHz) Serial Control Interface The HMC792ALP4E contains a 3-wire SPI compatible digital interface (SERIN, CLK, LE). The serial control interface is activated when P/S is kept high. The 6-bit serial word must be loaded MSB first. The positive-edge sensitive CLK and LE requires clean transitions. If mechanical switches are used, sufficient debouncing should be provided. When LE is high, 6-bit data in the serial input register is transferred to the attenuator. When LE is high CLK is masked to prevent data transition during output loading. When P/S is low, 3-wire SPI interface inputs (SERIN, CLK, LE) are disabled and the input register is loaded with parallel digital inputs (D0-D5). When LE is high, 6-bit parallel data changes the state of the part per truth table. ATTENUATORS - DIGITAL - SMT Input Power for 0.1dB Compression @ Vdd = 5V (Detail of Low Frequency Roll-Off) P0.1dB (dBm) P0.1dB (dBm) Input Power for 0.1dB Compression @ Vdd = 3V (Detail of Low Frequency Roll-Off) For all modes of operations, the attenuation state will stay constant while LE is kept low. Information furnished by Analog Devices is believed to be accurate and reliable. However, no For price,2 delivery, andDrive, to place orders: AnalogMA Devices, For price, delivery andDevices to place orders: Hittite Microwave Elizabeth Chelmsford, 01824Inc., responsibility is assumed by Analog for its use, nor for any infringements of patents orCorporation, other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106 rights of third parties that may result from its use. Specifications subject to change without notice. No Phone: 978-250-3343 Fax: 978-250-3373 Order at www.hittite.com Phone: On-line 781-329-4700 • Order online at www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Application Support: Phone: 1-800-ANALOG-D Trademarks and registered trademarks are the property of their respective owners. Application Support: Phone: 978-250-3343 or apps@hittite.com 4 HMC792ALP4E v00.0613 0.25 LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR, DC - 6 GHz ATTENUATORS - DIGITAL - SMT Timing Diagram (Latched Parallel Mode) Parallel Mode (Direct Parallel Mode & Latched Parallel Mode) Parameter Typ. Min. serial period, tSCK 100 ns Control set-up time, tCS 20 ns Control hold-time, tCH 20 ns LE setup-time, tLN 10 ns Min. LE pulse width, tLEW 10 ns Min LE pulse spacing, tLES 630 ns Serial clock hold-time from LE, tCKN 10 ns Hold Time, tPH. 0 ns Latch Enable Minimum Width, tLEN 10 ns Setup Time, tPS 2 ns Note: The parallel mode is enabled when P/S is set to low. Direct Parallel Mode - The attenuation state is changed by the control voltage inputs D0-D5 directly. The LE (Latch Enable) must be at a logic high at all times to control the attenuator in this manner. Latched Parallel Mode - The attenuation state is selected using the control voltage inputs D0-D5 and set while the LE is in the Low state. The attenuator will not change state while LE is Low. Once all Control Voltage Inputs are at the desired states the LE is pulsed. See timing diagram above for reference. Power-Up States PUP Truth Table If LE is set to logic LOW at power-up, the logic state of PUP1 and PUP2 determines the power-up state of the part per PUP truth table. If the LE is set to logic HIGH at power-up, the logic state of D0-D5 determines the power-up state of the part per truth table. The attenuator latches in the desired power-up state approximately 200 ms after power-up. Power-On Sequence The ideal power-up sequence is: GND, Vdd, digital inputs, RF inputs. The relative order of the digital inputs are not important as long as they are powered after Vdd / GND Control Voltage Table State Vdd = +3V Vdd = +5V Low 0 to 0.5V @