HFBR-0538Z Evaluation Kit DC to 2 MBd Interbus 650 nm Fiber Optics Eval Kit User Guide Introduction HFBR-0538Z evaluation kit is used to evaluate Avago fiber optic device HFBR-1505CZ and HFBR-2505CZ. The evaluation kit is equipped with necessary documents and accessories to ease product evaluation and verification. Evaluation Kit HFBR-0538Z contains: 1. Evaluation board 2. HFBR-1505CZ and HFBR-2505CZ unit 3. HCS® Cable with SMA connector 4. HFBR-1505CZ /2505CZ datasheet 5. User guide document Evaluation Board The basic evaluation board that you receive from Avago incorporates transmitter driver IC SN75451BD, some passive components, and SMA connectors for the TX input (TXD) and RX output (RXD) port connection. This basic evaluation board allows you to connect waveform/pattern generator to the TXD with TTL input signal. Receiver’s output signal can be monitored from the RXD or RXout with oscilloscope by using high impedance setting. Initial Setup 1. Connect 5 V supply voltage to TXVCC and RXVCC 2. Connect 0 V to TXGND and RXGND 3. Connect TXD to pattern generator output 4. Connect RXout to Oscilloscope with high impedance probe Bit Error Rate Test Setup Though the transmitter driver IC’s input and receiver’s output is based on TTL logic (high impedance), the board can be modified to connect 50 ohm load instrument by doing the following steps: 1. Put R2 (50 ohm resistor). 2. Remove R3 (0 ohm resistor). 3. Put R4 (0 ohm resistor) and R7 (50 ohm resistor). 4. Put U3 (SN74LVC2G125). 5. Connect BVCC (5 V) and BGND (0 V). HCS® is a trademark of OFS 4 RXGND RXGND RXout 5 6 7 8 Pin RX HFBR-2505CZ RXGND 5 6 7 8 TX HFBR-1505CZ TXGND 1 4 BGND 4 Res Semi 50 2 3 R5 3 5 8 SN7551BD 1Y 2Y U1 VCC 2A 1Y 20Eb VCC 5 6 7 8 BVCC C3 Cap Semi 100 pF RXGND RXVCC C1 T491B106K016AT 10 µF TXVCC R6 Res Semi 0 TXGND TXVCC SN74LVC2G125 GND 2Y 1A 10Eb U3 RXGND C2 0.1 µF BGND 1 R4 Res Semi 0 R1 Res Semi 47 TXGND GND TXGND TXin Pin 1Pin 2 1 2 6 7 4 BGND R7 Res Semi 50 Res Semi 0 R3 1A 1B 2A 2B GND 1 RXVCC TXGND RXGND BGND BVCC TXGND TXVCC RXGND 1 1 1 SMA RXD TXGND R2 SMA Res Semi 50 TXD 2 3 4 5 1 2 3 4 5 TXGND Pin 1 2 GND For product information and a complete list of distributors, please go to our web site: www.avagotech.com Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries. Data subject to change. Copyright © 2005-2010 Avago Technologies. All rights reserved. AV02-2661EN - October 5, 2010 Test_Jack TXVCC 1 1 1 1 1 Test_Jack BGND 1 Test_Jack BVCC 1 Test_Jack RXGND 1 Test_Jack RXVCC 1 TXGND 1 1 Test_Jack 1 Jack Jack Jack Jack Jack Jack 2 2 2 2 2 2 2 2 2 2 2 2 BGND BVCC RXGND RXVCC TXGND TXVCC