MAX3831, MAX3832 +3.3V, 2.5Gbps, SDH/SONET, 4-Channel Interconnect Mux/Demux ICs with Clock Generator

Description

The MAX3831/MAX3832 are 4:1 multiplexers (muxes) and 1:4 demultiplexers (demuxes) with automatic channel alignment. Operating from a single +3.3V supply, the mux receives four parallel, 622Mbps SDH/SONET channels. These channels are bit interleaved to generate a serial data stream of 2.488Gbps for interfacing to an optical or an electrical driver. A 10-bit-wide elastic buffer tolerates up to ±7.5ns skew between any parallel data input and the reference clock. An external 155MHz reference clock is required for the on-chip PLL to synthesize a high-frequency 2.488GHz clock for timing the outgoing data streams.

The MAX3831/MAX3182's demux receives 2.488Gbps serial data and the 2.488GHz clock from an external clock/data recovery device (MAX3876), converting it to four 622Mbps LVDS outputs. The MAX3831 provides a 622MHz LVDS clock output, and the MAX3832 provides a 155MHz LVDS clock output. An internal frame detector looks for a 622Mbps SDH/SONET framing pattern and rolls the demux to maintain proper channel assignment at the outputs.

These devices also include an embedded pattern generator that enables a full-speed, built-in self-test (BIST). Two different loopback modes provide system test flexibility. A TTL loss-of-frame monitor is included. The MAX3831/MAX3832 are available in 64-pin TQFP-EP (exposed paddle) packages and are specified over the upper commercial (0°C to +85°C) temperature range.

Key Features

Applications/Uses

+3.3V Single Supply
1.45W Power Dissipation
4-Channel Mux/Demux with Fully Integrated 2.488GHz Clock Generator
Frame Detection Maintains Channel Assignment
±7.5ns Elastic Store Range
2.5ps RMS Serial-Data Output Random Jitter
8ps Serial Data Output Deterministic Jitter
622Mbps LVDS Parallel Input/Output
2.488Gbps Serial CML Input/Output
On-Chip Pattern Generator Provides High-Speed BIST
System Test Flexibility: System Loopback, Line Loopback
Loss-of-Frame Indicator

	ATM Switch Networks
	Dense Digital Cross-Connects
	High-Speed Parallel Links
	Intrarack/Subrack Interconnects
	Line Extenders
	SDH/SONET Backplanes

Key Specifications: Datacom Serializers/Deserializers

Part Number

Functions

Applications

Target Serial Operating Range (Gbps)

Supply Voltage (V)

Typ. Supply Current (mA)

Configuration

Parallel Interface Data Rate (Mbps)

Serial Interface Data Rate (Mbps)

Parallel Interface Logic Levels

Serial Interface Logic Levels

Number of Rx

Number of Tx

EV-Kit

RoHS Available

Package

Operating Temp. Range (°C)

Price^**

MAX3831

•	Datacom SerDes

•	SDH/ SONET/ ATM/ DWDM/ PONS

1 to 4.5

3.3

440

1-to-4
4-to-1

622

2488

LVDS

CML

4/1

1/4

Yes

TQFP/64

0 to +85

$25.00 @ 1k

MAX3832

480

$25.00 @ 1k

See All Datacom Serializers/Deserializers (16)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Ordering Information

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
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Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-4 of 4

MAX3831

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX3831UCB-D

TQFP;64 pin;
Dwg: 21-0084C (PDF)
Use pkgcode/variation: C64E-3*

0°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX3831UCB-TD

TQFP;64 pin;
Dwg: 21-0084C (PDF)
Use pkgcode/variation: C64E-3*

0°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX3832

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX3832UCB-D

TQFP;64 pin;
Dwg: 21-0084C (PDF)
Use pkgcode/variation: C64E-3*

0°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX3832UCB-TD

TQFP;64 pin;
Dwg: 21-0084C (PDF)
Use pkgcode/variation: C64E-3*

0°C to +85°C

RoHS/Lead-Free: No
Materials Analysis