16

Agere Systems Inc.

CA16-Type 2.5 Gbits/s DWDM Transponder with

Advance Data Sheet

16-Channel 155 Mbits/s Multiplexer/Demultiplexer

March 2001

Electrical Characteristics

Table 6. Power Supply Characteristics (Tc = 0 °C to 65 °C)

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.

Parameter

Symbol

Min

Typ

Max

Unit

Supply Voltage

3.13

3.3

3.47

V

dc Power Supply Current Drain

—

2000

—

mA

TEC Voltage

3.0

3.3

3.5

V

TEC-Only Current Drain

—

0.6

1200

mA

Power Dissipation

—<9

—

W

Parameter

Symbol

Logic

Min

Typ

Max

Unit

Parallel Input Clock

Diff.

LVPECL

153.90

155.52

157.00

MHz

Parallel Clock in Duty Cycle

—

—

40

—

60

%

Reference Clock Freq. Tolerance

Diff.

LVPECL

–20

—

20

ppm

Reference Clock Input Duty Cycle

—

—

30

—

70

%

——

—

0.5

ns

Differential Input Signal Level,

Single-ended Input Sig. Level,

Differential Input Resistance,

∆R

Diff.

LVPECL

300

150

80

—

—

100

1200

600

120

mV

mV

Ω

Input Data Signal Levels:

Input Voltage Swing,

TxD[0:15]P/N

Diff.

LVPECL

300

—

—

—

—

V

V

mV

TTL (5 V)

2.0

—

5.0

V

TTL (5 V)

0

—

0.8

V

Wavelength-Select Voltage:

Channel N Select, V

λN

Channel N – 1 Select, V

λN–1

WS

TTL

0

2.0

—

—

0.8

V

V

Wavelength Deviation Alarm:

WDEA

TTL

0

4.5

–100

—

—

—

0.3

5

100

V

V

pm

Laser Degrade Alarm:

LSRALM

TTL

4.5

0

—

—

5

0.3

V

V

LPM

Analog

35

500

1000

mV

Phase Initialization:

PHINIT

LVPECL

—

—

V

V