6

Agere Systems Inc.

CA16-Type 2.5 Gbits/s DWDM Transponder with

Advance Data Sheet

16-Channel 155 Mbits/s Multiplexer/Demultiplexer

March 2001

Pin Descriptions

Table 1. CA16-Type Transponder Pinout

Pin #

Pin Name

I/O

Logic

Description

01

FGND

I

Supply

02

IPDMON

O

Analog

Receiver Photodiode Current Monitor

03

TxDGND

I

Supply

Transmitter Digital Ground

04

TxD15P

I

LVPECL

Transmitter 155 Mbits/s MSB Data Input

05

TxD15N

I

LVPECL

Transmitter 155 Mbits/s MSB Data Input

06

TxD13P

I

LVPECL

Transmitter 155 Mbits/s Data Input

07

TxD13N

I

LVPECL

Transmitter 155 Mbits/s Data Input

08

TxDGND

I

Supply

Transmitter Digital Ground

09

TxD11P

I

LVPECL

Transmitter 155 Mbits/s Data Input

10

TxD11N

I

LVPECL

Transmitter 155 Mbits/s Data Input

11

TxD09P

I

LVPECL

Transmitter 155 Mbits/s Data Input

12

TxD09N

I

LVPECL

Transmitter 155 Mbits/s Data Input

13

TxDGND

I

SUPPLY

Transmitter Digital Ground

14

TxD07P

I

LVPECL

Transmitter 155 Mbits/s Data Input

15

TxD07N

I

LVPECL

Transmitter 155 Mbits/s Data Input

16

TxD05P

I

LVPECL

Transmitter 155 Mbits/s Data Input

17

TxD05N

I

LVPECL

Transmitter 155 Mbits/s Data Input

18

TxDGND

I

Supply

Transmitter Digital Ground

19

TxD03P

I

LVPECL

Transmitter 155 Mbits/s Data Input

20

TxD03N

I

LVPECL

Transmitter 155 Mbits/s Data Input

21

TxD01P

I

LVPECL

Transmitter 155 Mbits/s Data Input

22

TxD01N

I

LVPECL

Transmitter 155 Mbits/s Data Input

23

TxDGND

I

Supply

Transmitter Digital Ground

24

I

LVPECL

Byte-Aligned Parallel Input Clock at 155 MHz

25

I

LVPECL

Byte-Aligned Parallel Input Clock at 155 MHz

26

LOCKDET

O

LVTTL

Lock Detect

27

TxDGND

I

Supply

Transmitter Digital Ground

28

Tx3.3D

I

Supply

Transmitter 3.3 V Digital Supply

29

Tx3.3D

I

Supply

Transmitter 3.3 V Digital Supply

30

TxAGND

I

Supply

Transmitter Analog Ground

31

Tx3.3A

I

Supply

Transmitter 3.3 V Analog Supply

32

Tx3.3A

I

Supply

Transmitter 3.3 V Analog Supply

33

TxAGND

I

Supply

Transmitter Analog Ground

34

LPM

O

Analog

Laser Power Monitor

35

LSRALM

O

5 V CMOS Laser Degrade Alarm

36

LSRBIAS

O

Analog

Not Implemented on the CA16-TypeTransponder

37

NC

—

—

38

I

LVTTL

Diagnostic Loopback

39

WDEA

O

5 V CMOS Wavelength Deviation Error Alarm

40

FP

O

LVPECL

Frame Pulse

41

FRAMEN

I

LVTTL

Frame Enable

1. Frame ground is connected to the housing and is isolated from all circuit grounds (TxDGND, TxAGND, RxDGND, RxAGND).

or any signal node.