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 ber optic device HFBR-1505CZ and HFBR-2505CZ. The evaluation
kit is equipped with necessary documents and accessories to ease product evaluation and verication.
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
modied 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
