NB4L16MMNEVB

NB4L16MMNEVB Evaluation Board User's Manual for NB4L16M http://onsemi.com EVAL BOARD USER’S MANUAL DESCRIPTION to have equal electrical length on all signal traces from the NB4L16M device to the sense output. The second layer is 32 mils thick copper ground plane. This document describes the NB4L16M evaluation board and the appropriate lab test setups. It should be used in conjunction with the NB4L16M data sheets which contain full technical details on the device specifications and operation. The evaluation board is designed to facilitate a quick evaluation of the NB4L16M Differential Receiver / Driver / Translator. The NB4L16M is designed to function as a high speed receiver/driver/translator device with CML output for use in high speed signal amplification and backplane interface applications. The board is implemented in two layers and provides a high bandwidth 50 W controlled impedance environment for higher performance. The first layer or primary trace layer is 5 mils thick Rogers RO6002 material, which is engineered What measurements can you expect to make? With this evaluation board, the following measurements could be performed in differential modes of operation: • Jitter • Output Skew • Gain/Return Loss • Eye Pattern Generation • Frequency Performance • Output Rise and Fall Time • VCMR (Input High Common Mode Range) 2.5040 2.5040 Figure 1. NB4L16MMN Evaluation PCB with Pin Label/Connection Change © Semiconductor Components Industries, LLC, 2012 February, 2012 − Rev. 1 1 Publication Order Number: EVBUM2069/D NB4L16MMNEVB SETUP FOR TIME DOMAIN MEASUREMENTS Table 1. BASIC EQUIPMENT Example Equipment (Note 1) Description Qty. Power Supply with 4 outputs HP6624A 1 Oscilloscope TDS8000 with 80E01 Sampling Head (Note 2) 1 Differential Signal Generator HP 8133A, Advantest D3186 1 Matched High Speed Cables with SMA Connectors Storm, Semflex 4 Power Supply Cables with Clips 8 1. Equipment used to generate example measurements within this document. 2. 50 GHz sampling head used (for effective rise, fall and jitter performance measurement) Setup Step 1: Connect Power Step 2: Connect Inputs 1a: Two power levels must be provided to the board for VCC and VEE via the surface mount clips. For Differential Mode (3.3 V and 2.5 V operation) 2a: Connect the differential output of the generator to the differential input of the device (D and D). NOTE: Device may oscillate when the input is not driven. Table 2. NB4L16M Power Supply Connections 3.3 V Setup 2.5 V Setup VCC = 0 V = GND VCC = 0 V = GND VTT = VCC = 0 V = GND VEE = −3.3 V VTT = VCC = 0 V = GND VEE = −2.5 V VCC = 0 V Signal Generator OUT OUT Amplitude = 500 mV Offset = −250 mV TRIGGER NOTE: VTT = 0 V VCC Digital Oscilloscope GND C1 D Q D VBB C1 VEE Q Channel 1 Channel 2 GND VTT = 0 V VEE = −3.3 V (3.3 V op) VEE = −2.5 V (2.5 V op) TRIGGER All differential cable pairs must be matched. Figure 2. NB4L16M Board Setup − Time Domain (Differential Mode) http://onsemi.com 2 NB4L16MMNEVB Step 3: Setup Input Signals 3c: Set the generator output for a PRBS data signal, or for a square wave clock signal with a 50% duty cycle. 3a: Set the signal generator amplitude to 500 mV. NOTE: The signal generator amplitude can vary from 75 mV to 900 mV to produce a 400 mV DUT output. Step 4: Connect Output Signals 4a: Connect the outputs of the device (Q, Q) to the oscilloscope. The oscilloscope sampling head must have internal 50 W termination to ground. NOTE: Where a single output is being used, the unconnected output for the pair must be terminated to VTT through a 50 W resistor for best operation. Unused pairs may be left unconnected. Since VTT = 0 V, a standard 50 W SMA termination is recommended. 3b: Set the signal generator offset to −250 mV. NOTE: The VIHCMR (Input High Voltage Common Mode Range) allows the signal generator offset to vary as long as VIH is within the VIHCMR range. Refer to the device data sheet for further information. SETUP FOR FREQUENCY DOMAIN MEASUREMENTS Table 3. BASIC EQUIPMENT Example Equipment (Note 3) Description Qty Power Supply with 4 outputs HP 6624A 1 Vector Network Analyzer (VNA) R&S ZVK (10 MHz to 40 GHz) 1 180° Hybrid Coupler Krytar Model #4010180 1 Bias Tee with 50 W Resistor Termination Picosecond Model #5542−219 1 Matched High Speed Cables with SMA Connectors Storm, Semflex 3 Power Supply Cables with Clips 8 3. Equipment used to generate example measurements within this document. Setup Step 1: Connect Power Setup Test Configurations for Differential Operation 1a:Two power levels must be provided to the board for VCC and VEE via the surface mount clips. Small Signal Setup Step 2: Input Setup Table 4. NB4L16M Power Supply Connections 2a: Calibrate VNA from 1.0 GHz to 12 GHz. 2b: Set input level to –35 dBm at the output of the 180° Hybrid coupler (input of the DUT). 3.3 V Setup VCC = 0 V = GND VTT = VCC = 0 V = GND Step 3: Output Setup 3a: Set display to measure S21 and record data. VEE = −3.3 V Large Signal Setup Step 2: Input Setup 2a: Calibrate VNA from 1.0 GHz to 12 GHz. 2b: Set input levels to −2.0 dBm (500 mV) at the input of DUT. Step 3: Output Setup 3a: Set display to measure S21 and record data. http://onsemi.com 3 NB4L16MMNEVB Vector Network Analyzer PORT 1 Bias T PORT 2 GND − 250 mV VCC = 0 V GND VTT = 0 V GND 50 W VCC GND 50 W D C1 Q 180 Hybrid Coupler D VBB GND C1 VEE Bias T Q GND 50 W GND VTT = 0 V VEE = −3.3 V (3.3 V op) Figure 3. Board Setup – Frequency Domain (Differential Mode) http://onsemi.com 4 NB4L16MMNEVB MORE INFORMATION ABOUT EVALUATION BOARD Design Considerations for >10 GHz operation The following considerations played a key role to ensure this evaluation board achieves high−end microwave performance: • Optimal SMA connector launch • Minimal insertion loss and signal dispersion • Accurate Transmission line matching (50 ohms) • Distributed effects while bypassing and noise filtering While the NB4L16M is specified to operate at 12 GHz, this evaluation board is designed to support operating frequencies up to 20 GHz. SURFACE MOUNT CLIP OPEN CIRCUIT STUB T6 l/4 @ 10 GHz T5 l/2 @ 10 GHz T3 VCC C1 0 VTD 0 ROSENBERGER SMA ROSENBERGER SMA 1 1 T1 T1 Q T2 D 1 ROSENBERGER SMA NB4L16M D Q T2 1 ROSENBERGER SMA VTD 0 0 T5 l/2 @ 10 GHz C1 T6 OPEN CIRCUIT STUB T4 l/4 @ 10 GHz VBB VEE SURFACE MOUNT CLIP NOTE: C1, C2* = Decoupling cap Tx = 50 W Transmission line Figure 4. Evaluation Board Schematic http://onsemi.com 5 NB4L16MMNEVB Table 5. PARTS LIST Part No Qty Description Manufacturer WEB address NB4L16MMN 1 2.5 V/3.3 V, 5 Gb/s Multi Level Clock/Data Input to CML Receiver/ Driver/ Translator with Internal Termination ON Semiconductor http://www.onsemi.com 32K243−40ME3 4 Gold Plated Connector Rosenberger http://www.rosenberger.de CO6BLBB2X5CO6 03CL04K6RAC 9 2 MHz – 30 GHz Capacitor 0603 0.1 mF $10% Dielectric Laboratories Kemet http://www.dilabs.com http://www.newark.com/ SO16 9 Test Point−Anvil Keystone http://www.newark.com http://www.digikey.com Table 6. BOARD MATERIAL Material Thickness Rogers 6002 5 mil Copper Plating 32 mil PIN 1 12.5 mil 1.37 mil Dielectric (5.0 mil) Thick Copper Base Figure 5. Board Stack−up Figure 6. Layout Mask for NB4L16M 11 GHz 1 dB/div 5 dB START 1 GHz NOTE: 1 GHz/ H STOP 12 GHz The insertion loss curve can be used to calibrate out board loss if testing under small signal conditions. Figure 7. Insertion Loss http://onsemi.com 6 NB4L16MMNEVB ADDITIONAL EVALUATION BOARD INFORMATION www.onsemi.com References In all cases, the most up−to−date information can be found on our website. • Sample orders for devices and boards • New Product updates • Literature download/order • IBIS and Spice models NB4L16M/D, Data Sheet, 2.5V/3.3V, 5 Gb/s Multi Level Clock/Data Input to CML Driver / Receiver / Buffer / Translator with Internal Termination AND8077/D, Application Note, GigaComm] (SiGe) SPICE Modeling Kit. AND8075/D, Application Note, Board Mounting Considerations for the FCBGA Packages. ORDERING INFORMATION Package Shipping NB4L16MMN Part No 2.5V/3.3V, 5 Gb/s Multi Level Clock/Data Input to CML Driver / Receiver / Buffer / Translator with Internal Termination Description 3X3 mm QFN−16 123 Units/Tray NB4L16MMNG 2.5V/3.3V, 5 Gb/s Multi Level Clock/Data Input to CML Driver / Receiver / Buffer / Translator with Internal Termination 3X3 mm QFN−16 (Pb−Free) 123 Units/Tray NB4L16MMNR2 2.5V/3.3V, 5 Gb/s Multi Level Clock/Data Input to CML Driver / Receiver / Buffer / Translator with Internal Termination 3X3 mm QFN−16 3000 / Tape & Reel NB4L16MMNEVB NB4L16MN Evaluation Board †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. http://onsemi.com 7 NB4L16MMNEVB PACKAGE DIMENSIONS 16 PIN QFN MN SUFFIX CASE 485G−01 ISSUE B D PIN 1 LOCATION ÇÇÇ ÇÇÇ ÇÇÇ 0.15 C NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. DIMENSION b APPLIES TO PLATED TERMINAL AND IS MEASURED BETWEEN 0.25 AND 0.30 MM FROM TERMINAL. 4. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. 5. Lmax CONDITION CAN NOT VIOLATE 0.2 MM MINIMUM SPACING BETWEEN LEAD TIP AND FLAG A B E DIM A A1 A3 b D D2 E E2 e K L TOP VIEW 0.15 C (A3) 0.10 C A 16 X SEATING PLANE 0.08 C SIDE VIEW A1 C D2 16X L 5 NOTE 5 e 4 16X 9 E2 K 12 1 16 16X e 13 b 0.10 C A B 0.05 C EXPOSED PAD 8 BOTTOM VIEW NOTE 3 GigaComm is a trademark of Semiconductor Components Industries, LLC. http://onsemi.com 8 MILLIMETERS MIN MAX 0.80 1.00 0.00 0.05 0.20 REF 0.18 0.30 3.00 BSC 1.65 1.85 3.00 BSC 1.65 1.85 0.50 BSC 0.20 −−− 0.30 0.50 onsemi, , and other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba “onsemi” or its affiliates and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. 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