V23818-K15-L37 Datasheet, PDF (20/24 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

2x10 AC/AC Transceiver
V23818-K15-Lxx
Recommended Termination Schemes
20
19 17
18
VEEt 12,16
VCC SerDes
Laser
Driver
100 Ω
SFF Transceiver
TD+ 14
TD− 15
TDis 13
VCCt ¹¹
C4
TDis
C1
VCCr 7
L1 _VCC
3.3 V
L2
C3 C6
Pre-
Amp
Signal
Detect
Limiting
Amplifier
SD 8
1
RD− 9
C2
SD
PDBias
RD+ 10 ^C5
VEEt ^2,3,6
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 = 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
R1/2/3/4 = Depends 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.
R5/6 = Biasing (depends on SerDes chip).
Place R1/2/3/4/5/6 close to SerDes chip.
*) _{The inductors may be replaced by appropriate Ferrite beads.}
File: 1391
Figure 14
Data Sheet
20
2003-03-21