English
Language : 

V23849-R35-C55 Datasheet, PDF (3/34 Pages) Infineon Technologies AG – iSFP-Intelligent Small Form-factor Pluggable 1.25 Gigabit Ethernet 4.25/2.125/1.0625 Gbit/s Fibre Channel
V23849-R3x-C55
Pin Configuration
Pin Description
Pin No. Name
Logic Level
Function
1
VEET
2
Tx Fault
N/A
LVTTL
Transmitter Ground1)
Transmitter Fault Indication2) 10)
3
Tx Disable
LVTTL
Transmitter Disable3)
4
MOD-DEF(2)
LVTTL
Module Definition 24) 10)
5
MOD-DEF(1)
LVTTL
Module Definition 15) 10)
6
MOD-DEF(0)
N/A
Module Definition 06) 10)
7
Rate Select7)
LVTTL
1 & 2 or 2 & 4 Gbit/s8)
8
LOS
LVTTL
Loss Of Signal9) 10)
9
VEER
10
VEER
11
VEER
12
RD–
N/A
N/A
N/A
LVPECL
Receiver Ground1)
Receiver Ground1)
Receiver Ground1)
Inv. Received Data Out11)
13
RD+
LVPECL
Received Data Out11)
14
VEER
15
VCCR
16
VCCT
17
VEET
18
TD+
N/A
N/A
N/A
N/A
LVPECL
Receiver Ground1)
Receiver Power12)
Transmitter Power12)
Transmitter Ground1)
Transmit Data In13)
19
TD–
LVPECL
Inv. Transmit Data In13)
20
VEET
N/A
Transmitter Ground1)
1) Common transmitter and receiver ground within the module.
2) A high signal indicates a laser fault of some kind and that laser is switched off.
3) A low signal switches the transmitter on. A high signal or when not connected switches the transmitter off.
4) MOD-DEF(2) is the data line of two wire serial interface for serial ID.
5) MOD-DEF(1) is the clock line of two wire serial interface for serial ID.
6) MOD-DEF(0) is grounded by the module to indicate that the module is present.
7) Not implemented.
8) In accordance to SFF Committee SFF-8079 Draft.
9) A low signal indicates normal operation, light is present at receiver input. A high signal indicates the received
optical power is below the worst case receiver sensitivity.
10) Should be pulled up on host board to VCC by 4.7 - 10 kΩ.
11) AC coupled inside the transceiver. Must be terminated with 100 Ω differential at the user SERDES.
12) Common transmitter and receiver VCC within the module.
13) AC coupled and 100 Ω differential termination inside the transceiver.
Preliminary Product Information
3
2004-06-28