V23818-K15-B57 Datasheet, PDF (16/18 Pages) Infineon Technologies AG – SFP - Small Form-factor Pluggable Single Mode 1300 nm 1.0625 Gbit/s Fibre Channel 1.25 Gigabit Ethernet Transceiver with LC™ Connector

V23818-K15-B57
Single Mode 1300 nm SFP Transceiver, AC/AC TTL
Application Notes
V_CCT
V_EET
xx ¹⁾
0.1 µF
1 µH
V_CCR
xx ¹⁾
0.1 µF
1 µH
10 µF
V_EER
SFP Module
Host Board
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.
0.1 µF
3.3 V
10 µF
File: 1304
Figure 7 Recommended Host Board Supply Filtering Network
Protocol V_CC
Tx Disable
Tx Fault
Protocol IC
LOS
Protocol V_CC
SerDes IC
PLD / PAL
3.3 V
10 µF 0.1 µF
4.7 to
10 kΩ
4.7 to
10 kΩ
100 Ω
Infineon
1 µH
SFP
Transceiver
1 µH
16
0.1 µF
xx ^{1) VCCT}
17
4.7 to
10 kΩ
Tx Disable
Tx Fault
TD–
0.01 µF
100 Ω
TD+
V_EET
0.01 µF
10 µF 0.1 µF
xx ¹⁾
15
V_CCR
14
Laser
Driver
RD+
0.01 µF
RD–
LOS
0.01 µF
Preamp &
Quantizer
3.3 V
4.7 to
10 kΩ
4.7 to
10 kΩ
4.7 to
10 kΩ
V_EER
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.
File: 1305
Figure 8 Example SFP Host Board Schematic
Data Sheet
16
2003-04-25