Delta Electronics SPBD-155F4J1RD Specifications page 7

9. Recommend Interface Circuit
Protocol Vcc
Tx_Disable
Tx_Fault
Protocol IC
Rx_LOS
DELTA ELECTRONICS, INC.
VCC 3.3V
RES1
SerDes IC
100 Ohms*
3.3V
RES1
PLD / PAL
RES1 = 4.7k to 10k Ohms
* Depands on SerDes IC used
SFP Host Board Schematic
Recommended Host Board Supply Filtering Network
1uH
1uH
10uF 0.1uF
0.1uF
Tx_Disable
Tx_Fault
TD +
TD -
VeeT
RES1
10uF 0.1uF
RD +
RD -
Rx_LOS
VeeR
RES1 RES1
Mod_def 2
Mod_def 1
Mod_def 0
Design criterion of the capacitor used is the
resonant frequency and its value must be in the
order of the nominal data rate. Short trace
lengths are mandatory.
7
SPBD-155F4J1RD
DELTA SFP Module
VccT
10k Ohms
0.01uF
Laser Driver
100 Ohms
0.01uF
VccR
Preamp &
0.01uF
Quantizer
0.01uF
EEPROM
Revision: S1
04/11/2007
www.deltaww.com
Laser Diode
Photo Diode