MAX3882A Maxim Integrated Products, MAX3882A Datasheet

MAX3882A

Manufacturer Part Number

MAX3882A

Description

2.488Gbps 1:4 Demultiplexer

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX3882A.pdf (13 pages)

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The MAX3882A is a deserializer combined with clock

and data recovery and limiting amplifier ideal for con-

verting 2.488Gbps serial data to 4-bit-wide, 622Mbps

parallel data for SDH/SONET applications. The device

accepts serial NRZ input data as low as 10mV

2.488Gbps and generates four parallel LVDS data out-

puts at 622Mbps. Included is an additional high-speed

serial data input for system loopback diagnostic test-

ing. For data acquisition, the MAX3882A does not

require an external reference clock. However, if need-

ed, the loopback input can be connected to an external

reference clock of 155MHz or 622MHz to maintain a

valid clock output in the absence of input data transi-

tions. Additionally, a TTL-compatible loss-of-lock output

is provided. The device provides a vertical threshold

adjustment to compensate for optical noise generated

by EDFAs in WDM transmission systems. The

MAX3882A operates from a single +3.3V supply and

consumes 610mW.

The MAX3882A’s jitter performance exceeds all SDH/

SONET specifications. The device is available in a 6mm

19-2718; Rev 2; 4/09

Typical Application Circuits appear at end of data sheet.

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

6mm, 36-pin TQFN package.

SDH/SONET Receivers and Regenerators

Add/Drop Multiplexers

Digital Cross-Connects

SDH/SONET Test Equipment

DWDM Transmission Systems

2.488Gbps 1:4 Demultiplexer with Clock and

________________________________________________________________ Maxim Integrated Products

General Description

Data Recovery and Limiting Amplifier

Applications

P-P

♦ No Reference Clock Required for Data Acquisition

♦ Serial Input Rate: 2.488Gbps

♦ Fully Integrated Clock and Data Recovery with

♦ Parallel Output Rate: 622Mbps

♦ Differential Input Range: 10mV

♦ Differential Input Range: 50mV

♦ 0.65UI High-Frequency Jitter Tolerance

♦ Loss-of-Lock (LOL) Indicator

♦ Wide Input Threshold Adjust Range: ±170mV

♦ Maintain Valid Clock Output in Absence of Data

♦ System Loopback Input Available for System

♦ Operating Temperature Range -40°C to +85°C

♦ Low Power Dissipation: 610mW at +3.3V

+ Denotes a lead(Pb)-free/RoHS-compliant package.

* EP = Exposed pad.

MAX3882AETX+

Limiting Amplifier and 1:4 Demultiplexer

without Threshold Adjust

with Threshold Adjust

Transitions

Diagnostic Testing

TOP VIEW

*EXPOSED PAD.

FREFSET

_OUT

CAZ+

CAZ-

GND

CTRL

PART

REF

-40°C to +85°C

TEMP RANGE

Ordering Information

MAX3882A

TQFN

Pin Configuration

22 21 20

P-P

*EP

to 1.6V

to 600mV

PIN-PACKAGE

Features

36 TQFN-EP*

P-P

PCLK+

PCLK-

GND

FIL

GND

LREF

_OUT

_VCO

P-P

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