V23870-A2111-A100 Datasheet, PDF (10/11 Pages) Infineon Technologies AG – Bi-Directional Pigtail SFF Transceiver 155 Mb/s, 1310 nm Tx / 1310 nm Rx

AC/AC coupling
Vcc
3.3V
C3
L1
L2
C1
C2
TxVcc (6) RxVcc (2)
Laser
Driver
TxVee (7)
TD+ (9)
100
Ohms
TD- (10)
Limiting
Amplifier
TxDis (8)
SD (3)
Rd- (4)
SD
R7
Rd+ (5)
SFF Transceiver
RxVee (1)
Vcc
SerDes
3.3V
Vcc
Ser Data
Out+
ECL/PECL
Driver
Ser Data
R1
R2 ^Out- _Serializer/
Deserializer
R3
R4
Ser Data In-
Ser Data In+
Receiver
R5
R6
L1, L2:
1...4.7 µH
C1, C2, C3: 4.7...10 µF
R1, R2:
biasing of outputs depending on Serializer
R3, R4:
127 Ohms
R5, R6:
80 Ohms
R7:
510 Ohms for PECL signal detect, open for TTL
Place R1/2/3/4/5/6 as close to SerDes chip as possible
Fiber Optics
10
V23870-A2111/2-xx00 BIDI Pigtail SFF transceiver