V23818-K305-L17 Datasheet, PDF (11/16 Pages) Infineon Technologies AG – Small Form Factor Multimode 850 nm 1.0625 GBd Fibre Channel 1.25 Gigabit Ethernet Transceiver 2x5 Pinning with LC™ Connector

V23818-K305-Lxx
Application Notes
Application Notes
Small Form Factor Pinning Comparison
The drawing below gives you a comparison between the different pinnings 2x5, 2x6,
2x10. Dimension for diameter and distance of additional pins is similar to the existing
dimensions of the other pins.
RxV_EE 1
RxV_CC 2
SD 3
RxD− 4
RxD+ 5
RS 1
RxV_EE 2
RxV_CC 3
SD 4
RxD− 5
RxD+ 6
V_CCPIN 1
RxV_EE 2
RxV_EE 3
RxCLK− 4
RxCLK+ 5
RxV_EE 6
RxV_CC 7
SD 8
RxD− 9
RxD+ 10
Top view
Rx Tx
2 x 10
2x6
2x5
20 PMON+
19 PMON−
18 BIASMON+
17 BIASMON−
16 TxV_EE
15 TxD−
14 TxD+
13 TxDis
12 TxV_EE
11 TxV_CC
12 Laser Fault
11 TxD−
10 TxD+
9 TxDis
8 TxV_EE
7 TxV_CC
10 TxD−
9 TxD+
8 TxDis
7 TxV_EE
6 TxV_CC
File: 1506
Figure 5
Pin Description
RS pin - The RS (Rate Select) is not connected.
LF pin - The LF pin (Laser Fault) is an LVTTL output of the Laser Driver Supervisor
Circuit. A Logic 1 level can be measured in case of a laser fault. It will not show
a fault if the laser is being disabled using the TxDis input, since this is not a fault
condition.
EMI-Recommendations
To avoid electromagnetic radiation exceeding the required limits please take note of the
following recommendations.
When Gigabit switching components are found on a PCB (multiplexers, clock recoveries
etc.) any opening of the chassis may produce radiation also at chassis slots other than
that of the device itself. Thus every mechanical opening or aperture should be as small
as possible.
On the board itself every data connection should be an impedance matched line (e.g.
strip line, coplanar strip line). Data, Datanot should be routed symmetrically, vias should
be avoided. A terminating resistor of 100 W should be placed at the end of each matched
Data Sheet
11
2003-01-22