v23826-k305-c13 Infineon Technologies Corporation, v23826-k305-c13 Datasheet - Page 11

• Manufacturer Part Number: v23826-k305-c13
• Description: Multimode 1.0625 Gbit/s Fibre Channel Gigabit Ethernet Transceiver
• Manufacturer: Infineon Technologies Corporation

Multimode 850 nm Gigabit Ethernet/Fibre Channel 1x9 Transceiver,
DC/DC Version
Figure 5
This Application Note assumes Fiber Optic Transceivers using 5 V power supply and
SerDes Chips using 3.3 V power supply. It also assumes self biasing at the receiver data
inputs (RD+/RD–) of the SerDes chip. Refer to the manufacturer data sheet for other
applications. 3.3 V-Transceivers can be directly connected to SerDes-Chips using
standard PECL Termination network.
Value of R1 may vary as long as proper 50
provided. The power supply filtering is required for good EMI performance. Use short
tracks from the inductor L1/L2 to the module
The transceiver contains an automatic shutdown circuit. Reset is only possible if the
power is turned off, and then on again. (
Application Board available on request.
Data Sheet
C1/2/3
C4/5/6/7
L1/2
R5/6
R7/8
(depends on SerDes chip used)
R9
Infineon Transceiver
Pre-
Amp
= 4.7 µF
= 100 nF
= 1 µH
= 270
= 150
= 127
= 82
= 510
= 270
Laser
Driver
Limiting
Amplifier
(3.3 V)
(5 V)
(3.3 V)
(5 V)
(5 V)
(3.3 V)
Signal
Detect
RD+
RD
V
V
V
V
CC
CC
EE
EE
RD+
RD
TD+
TD
SD
Rx
Rx
Tx
Tx
R10/11
(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
9
8
7
6
5
4
3
2
1
frequency and its value must be in the order of the nominal
data rate. Short trace lengths are mandatory.
1)
1)
C1
C2
V
CC
C6
C7
11
= 82
= 127
R9
Tx switched below
L1
L2
V
SD to upper level
termination to
CC
C4
C5
(5 V)
Rx/
(3.3 V)
V
5 V / 3.3 V
CC
C3
V
CC
V
5 V / 3.3 V
CC
SerDes
Tx.
V23826-K305-Cxx/Cxxx
V
EE
V
TH
V
Tx+
RD-
RD+
Tx-
or 100
CC
Serializer/
Deserializer
).
Application Notes
ECL/PECL
Driver
Receiver
PLL etc.
File: 1389
differential is
2004-01-27