Advance Data Sheet, Rev. 1

October 2001

Recovery for 2.488 Gbits/s Applications

R485-Type Lightwave Receiver with Clock

4

Agere Systems Inc.

Table 3. Electrical Characteristics

* Typical values measured at room temperature and beginning of life.

† Measured with a 50

Ω to ground. Outputs must be ac-coupled (see Figure 2).

‡ TTL output.

Parameter

Symbol

Min

Typ*

Max

Unit

Bit Rate

—

2488.07

2488.32

2488.57

Mbits/s

dc Power Supply Voltages

4.75

5.0

5.25

V

Power Consumption

—

—

1.3

2.0

W

Single Output

Differential Output

SV

DV

0.3

0.6

0.4

0.8

1.0

2.0

Vp-p

Vp-p

High

Low

2.5

0

5.0

0.2

0.8

V

V

Clock/Data Alignment (see Figure 1)

—0

±40

ps

Clock Duty Cycle

—

45

50

55

%

Jitter Generation

—

0.005

<0.01

Ul rms

Jitter Transfer (see Figure 2)

——

<0.1

dB

Jitter Tolerance (see Figure 3)