V23826-K305-C63 Infineon Technologies, V23826-K305-C63 Datasheet - Page 5

• Manufacturer Part Number: V23826-K305-C63
• Description: TXRX MULT-MODE 850NM 1.3GBIT
• Manufacturer: Infineon Technologies
• Series: -r

Specifications of V23826-K305-C63

• Data Rate: 1.3Gbps
• Wavelength: 850nm
• Applications: Ethernet
• Voltage - Supply: 4.75 V ~ 5.25 V
• Connector Type: SC
• Mounting Type: PCB
• Lead Free Status / Rohs Status: Contains lead / RoHS non-compliant
• Other names: V23826K305C63IN

APPLICATION NOTE
Gigabit 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 strongly recommended that the Tx plug and the Rx plug be
separated with a bar that divides the duplex SC opening.
APPLICATION NOTE
Multimode 850nm Gigabit Ethernet/Fibre Channel 1x9 Transceiver, DC/DC Version
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 con-
nected to SerDes-Chips using standard PECL Termination
network.
Fibre Optics
C1/2/3
C4/5/6/7 = 10 nF
L1/2
R10/11
(depends on SerDes chip used)
R7/8
(depends on SerDes chip used)
Infineon Transceiver
V23826-K305-C63/C363
DC/DC Option
= 4.7 µF
= 1 µH
= 127 (3.3 V)
= 127
= 82
= 82 = (3.3 V)
Pre-
Amp
(5 V)
(5 V)
Laser
Driver
Limiting
Amplifier
Signal
Detect
RD-
RD+
RxGND
TxGND
V
V
CC
CC
RxD
RxD
TxD
TxD
R5/6
R9
Place R1/2/3/4 close to
SerDes chip, depends on
SerDes chip used, see application note of SerDes supplier.
Place R7/8/10/11 close to Infineon transceiver
SD
Rx
Tx
9
8
7
6
5
4
3
2
1
= 300
= 150
= 270
= 510 = (5 V)
C6
C7
C1
C2
= (3.3 V)
(3.3 V)
(5 V)
5
R9
If shielded parts are employed, they should be in proper contact
with the bezel (back plane).
Since the shield is galvanically isolated from signal ground it is
strongly recommended to prevent any contact between shield
and the circuitry i.e. even any ground connection on the pcb
may be harmful to EMI performance.
In cases where EMI performance becomes critical it has proven
to be helpful when using SC-plugs with less metal parts inside
(as Infineon fibers).
Value of R1 may vary as long as proper 50
or 100
required for good EMI performance. Use short tracks from the
inductor L1/L2 to the module V
The transceiver contains an automatic shutdown circuit. Reset
is only possible if the power is turned off, and then on again.
(V
Application Board available on request.
SD to upper level
L1
L2
CC
V23826-K305-C13/53/63/73, Multimode 850 nm 1.3 Gigabit Ethernet 1x9 Trx
Tx switched below V
C4
C5
V
5 V / 3.3 V
CC
differential is provided. The power supply filtering is
C3
V
5 V / 3.3 V
CC
SerDes
TH
).
CC
Rx/V
V
Tx+
RD-
RD+
Tx-
CC
CC
Serializer/
Deserializer
Gigabit
Transceiver
Chip
Tx.
termination to V
Receiver
PLL etc.
ECL/PECL
Driver
EE