General Description

The MAX3881 deserializer with clock recovery is ideal

for converting 2.488Gbps serial data to 16-bit-wide,

155Mbps parallel data for SDH/SONET applications.

Operating from a single +3.3V supply, this device

accepts high-speed serial-data inputs and delivers sin-

gle-ended PECL parallel data outputs and a differential

PECL parallel clock output for interfacing with digital

circuitry.

The MAX3881 includes a low-power clock recovery and

data retiming function for 2.488Gbps applications. The

fully integrated phase-locked loop (PLL) recovers a

synchronous clock signal from the serial NRZ data

input; the signal is then retimed by the recovered clock.

The MAX3881’s jitter performance exceeds all

SDH/SONET specifications. An additional 2.488Gbps

serial input is available for system loopback diagnostic

testing. The device also includes a TTL-compatible

loss-of-lock (LOL) monitor.

The MAX3881 is available in the extended temperature

range (-40°C to +85°C) in a 64-pin TQFP-EP package.

Applications

2.488Gbps SDH/SONET Transmission Systems

Add/Drop Multiplexers

Digital Cross-Connects

Features

o Single +3.3V Supply

o 530mW Operating Power

o Fully Integrated Clock Recovery and Data

Retiming

o Exceeds ANSI, ITU, and Bellcore Specifications

o Additional High-Speed Input Facilitates System

Loopback Diagnostic Testing

o 2.488Gbps Serial to 155Mbps Parallel Conversion

o Differential PECL Clock Output

o Single-Ended PECL Data Outputs

o Tolerates >2000 Consecutive Identical Digits

o Loss-of-Lock Indicator

+3.3V, 2.488Gbps, SDH/SONET

1:16 Deserializer with Clock Recovery

________________________________________________________________ Maxim Integrated Products

1

19-1996; Rev 1; 12/01

PART

MAX3881ECB

-40°C to +85°C

TEMP. RANGE

PIN-PACKAGE

64 TQFP-EP*

Ordering Information

*Exposed pad

EVALUATION

KIT

AVAILABLE

Pin Configuration

SLBI+

SDI-

SDI+

PHADJ-

GND

GND

SIS

SLBI-

PHADJ+

FIL-

FIL+

GND

PD10

TOP VIEW

PD9

PD8

GND

PD7

PD6

PD5

GND

TQFP-EP*

58

59

60

61

62

54

55

56

57

63

38

39

40

41

42

43

44

45

46

47

52

53

49

50

51

33

34

35

36

37

48

64

23

22

21

20

19

27

26

25

24

18

29

28

32

31

30

17

11

10

9

8

7

6

5

4

3

2

16

15

14

13

12

1

MAX3881

*EXPOSED PAD IS CONNECTED TO GND.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Typical Application Circuit appears at end of data sheet.