V23818-N15-L616 Datasheet, PDF (17/20 Pages) Infineon Technologies AG – Small Form Factor Single Mode 1300 nm Multirate up to 2.5 Gbit/s Transceiver 2x10 Pinning with LC™ Connector, with Collar

Recommended Termination Schemes
2x10 DC/DC Transceiver
V23818-N15-L6xx
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
C8
TDis
C1
VCCr 7
C6
C7
L1
VCC
3.3 V
L2
C3 C10
Pre-
Amp
Signal
Detect
Limiting _RD−
Amplifier
RD+
SD 8
1
RD− 9
C2
SD
PDBias
C4
RD+ 10 ^C9
C5
2,3,6
VEEr
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 (depends on SerDes chip).
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: 1390
Figure 13
Data Sheet
17
2003-09-10