17

Agere Systems Inc.

Advance Data Sheet

CA16-Type 2.5 Gbits/s DWDM Transponder with

March 2001

16-Channel 155 Mbits/s Multiplexer/Demultiplexer

1. 20% to 80%.

2. Internally biased and ac-coupled.

3. The transmitter is normally enabled and only requires an external voltage to disable.

4. The WDEA alarm becomes active when the optical wavelength deviates from the nominal center wavelength by more than 100 pm.

6. Terminated into 200

Ω to GND and 100 Ω line-to-line.

Table 8. Receiver Electrical I/O Characteristics (Tc = 0 °C to 65 °C, Vcc = 3.3 V ± 5%)

1. Terminated into 330

Ω to ground.

2. 20% to 80%, 330

Ω to ground.

Parameter

Symbol

Logic

Min

Typ

Max

Unit

PHERR

LVPECL

—

—

V

V

Line Loopback Enable:

Active-low:

LVTTL

2.0

0

—

—

0.8

V

V

Diagnostic Loopback Enable:

Active- low:

LVTTL

2.0

0

—

—

0.8

V

V

Differential Voltage Swing,

S-E Voltage Swing,

Differential

LVPECL

800

400

—

—

—

—

1900

950

V

V

mV

mV

Parameter

Symbol

Logic

Min

Typ

Max

Unit

Parallel Output Clock:

Differential

LVPECL

—

—

V

V

—

—

40

—

60

%

RxQ[0:15]P/N

Differential

LVPECL

—

—

V

V

——

——

1.0

ns

Frame Pulse:

FP

LVPECL

—

—

V

V

Loss-of-Signal Output:

LOS

LVTTL

2.4

0

—

—

0.4

V

V

Out-of-Frame Input:

OOF

LVTTL

2.0

0.0

—

—

0.8

V

V

Frame Enable Input

FRAMEN

LVTTL

2.0

0.0

—

—

0.8

V

V