V23818-K15-L37 Datasheet, PDF (21/24 Pages) Infineon Technologies AG – Small Form Factor Single Mode 1300 nm 1.0625 Gbit/s Fibre Channel 1.25 Gigabit Ethernet Transceiver 2x5/2x10 Pinning with LC Connector

2x5 DC/DC Transceiver
V23818-K15-Lxx
Recommended Termination Schemes
VEEt 7
VCC SerDes
Laser
Driver
100 Ω
SFF Transceiver
TD+ 9
TD−
TDis
VCCt
10 ^C8
8
6
TDis
C1
VCCr 2
C6
C7
L1
VCC
3.3 V
L2
C3 C10
Signal
Detect
SD 3
C2
SD
Pre-
Amp
Limiting _RD−
Amplifier
RD− 4
C4
RD+
RD+ 5 ^C9
C5
VEEr 1
VCC
SerDat Out +
SerDat Out −
ECL/
PECL
Driver
Serializer/
Deserializer
SerDat In −
SerDat In +
Receiver
PLL etc.
C1/2/3 = 4.7 ... 10 µF
C4/5/6/7 = 100 nF
C8/9/10 = Design criterion is the resonance frequency only. The self resonant frequency of the
capacitor must be in the vicinity of the nominal data rate. Short traces are mandatory.
L1/2^*) = 1 ... 4.7 µH
R1
= 100 Ω (depending on SerDes chip used, ensure proper 50 Ω termination to V_EE or
100 Ω differential is provided. Check for termination inside of SerDes chip).
R2/3 = 150 Ω
R4/5 = Biasing for outputs depending on Serializer.
Place R1/4/5 close to SerDes chip.
Place R2/3 close to Infineon transceiver.
*) _{The inductors may be replaced by appropriate Ferrite beads.}
File: 1392
Figure 15
Data Sheet
21
2003-03-21