V23836-C18-C63 Datasheet, PDF (10/13 Pages) Infineon Technologies AG – 1x9 Transceiver with Duplex SC Receptacle Single Mode 1300 nm 21 km SONET OC-3 / SDH STM-1

V23836-C18-C63
V23836-C18-C363
Application Notes
Application Notes
ATM transceivers and matching circuits are high frequency components and shall be
terminated as recommended in the application notes for proper EMI performance.
Electromagnetic emission may be caused by these components.
To prevent emissions it is recommended that cutouts for the fiber connectors be
designed as small as possible.
It is recommended that the Tx plug and the Rx plug be separated with a bar that divides
the duplex SC opening.
Single Mode 155 Mbit/s ATM 1x9 Transceiver, DC/DC PECL Version
Laser
Driver
VEETx 9
TD+ 8
C6
1)
TD− 7
C7
VCC SerDes
5 V / 3.3 V
Infineon Transceiver
Signal
Detect
Pre-
Amp
Limiting _RD+
Amplifier
RD−
VCCTx 6
C1
VCCRx 5
C2
SD 4
1)
RD+ 3
RD− 2
L1
VCC
5 V / 3.3 V
L2
C3
SD to upper level
R9
C4
C5
VEERx 1
VCC
Tx+
ECL/PECL
Driver
Tx-
Serializer/
Deserializer
RD-
RD+
Receiver
PLL etc.
C1/2/3 = 4.7 µF
C4/5/6/7 = 100 nF
L1/2 = 1 µH
R5/6 = 270 Ω (5 V)
= 150 Ω (3.3 V)
R7/8 = 127 Ω (5 V)
= 82 Ω (3.3 V)
(depends on SerDes chip used)
R9
= 510 Ω (5 V)
= 270 Ω (3.3 V)
R10/11 = 82 Ω (5 V)
= 127 Ω (3.3 V)
(depends on SerDes chip used)
Place R1/2/3/4 close to SerDes chip, depends on SerDes chip
used, see application note of SerDes supplier.
Place R5/6/7/8/10/11 close to Infineon transceiver.
1) Design criterion of the capacitor used is the resonant
frequency and its value must be in the order of the nominal
data rate. Short trace lengths are mandatory.
File: 1389
Figure 5
Preliminary Product Information
10
2004-02-13