V23838-M305-M56 Datasheet, PDF (19/21 Pages) Infineon Technologies AG – SFP-Small Form-factor Pluggable 1.25 Gigabit Ethernet 2.125/1.0625 Gbit/s Fibre Channel Multimode 850 nm Transceiver with LC™ Connector

Multimode 850 nm SFP Transceiver, AC/AC TTL
V23838-M305-M56
Application Notes
Host Board
3.3 V
Protocol V_CC
Tx Disable
Tx Fault
Protocol V_CC
10 µF 0.1 µF
4.7 to
10 kΩ
Protocol IC
ASIC IC
4.7 to
10 kΩ
Infineon
SFP
1 µH
Transceiver
1 µH
V_CCT 16
0.1 µF
xx ¹⁾
V_EET
1/17/20
Tx Disable 3
Tx Fault 2
TD– 19
0.1 µF
4.7 to
10 kΩ
10 µF 0.1 µF
TD+
V_CCR
xx ¹⁾
V_EER
100 Ω
18
0.1 µF
15
9/10/11/14
Laser
Driver
LOS
Rate Select ²⁾
PLD / PAL
100 Ω
RD+ 13
0.1 µF
RD– 12
LOS 8
0.1 µF
Pre-Amp./
Post Amp.
3.3 V
4.7 to
10 kΩ
4.7 to
10 kΩ
4.7 to
10 kΩ
Rate Select ²⁾ 7
Diagnostic IC / EEPROM
6
5
4
MOD-DEF(0) MOD-DEF(1) MOD-DEF(2)
1) Design criterion of the capacitor used is the resonant frequency and its value must be in the order of the nominal
data rate. Use of single layer capacitors recommended. Short trace lengths are mandatory.
2) Not implemented.
File: 1320
Figure 7
Example SFP Host Board Schematic and
Recommended Host Board Supply Filtering Network
Data Sheet
19
2004-06-23