8. Recommend Interface Circuit
VCC | 3.3V | 1uH |
Protocol Vcc
RES1
Tx_Disable
Tx_Fault
Protocol IC | SerDes IC |
1uH | DELTA SFP Module |
10uF 0.1uF
0.1uF VccT
10k Ohms
Tx_Disable
Tx_Fault |
|
TD + | 0.01uF |
| Laser Driver |
| 100 Ohms |
| Laser Diode |
TD - | 0.01uF |
| |
VeeT |
|
RES1 | 0.1uF | VccR |
10uF |
| |
| RD + | 0.01uF |
|
|
100 Ohms*
RD - 0.01uF
Rx_LOS
3.3V | Rx_LOS |
| |
| VeeR |
Preamp &
Quantizer
Photo Diode
RES1 RES1 RES1
PLD / PAL | Mod_def 2 |
Mod_def 1
Mod_def 0
RES1 = 4.7k to 10k Ohms
* Depands on SerDes IC used
EEPROM
SFP Host Board Schematic
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.
Recommended Host Board Supply Filtering Network |
|
8 | Revision: S1 |
| 09/20/2006 |
DELTA ELECTRONICS, INC. | www.deltaww.com |