m21121 Mindspeed Technologies, m21121 Datasheet

m21121

Manufacturer Part Number

m21121

Description

3.2 Gbps 17x17/34x34 Crosspoint Switch

Manufacturer

Mindspeed Technologies

Datasheet

1.M21121.pdf (2 pages)

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Download datasheet (235Kb)

M21111 3.2 Gbps 17x17 and M21121 3.2 Gbps 34x34 Crosspoint Switch

The M21111/21, designed for today’s demanding video, telecom and datacom switching applications are low-power,

high-speed crosspoint switches with input equalization and integrated pattern generator/checker. With all channels

operational, the M21111 and M21121 typically consume 2.6 Watts and 4 Watts of power respectively, making them ideal

for use in low power systems. The PowerScaler™ feature provides dynamically scalable switch settings for further

power reduction. With the use of the SmartPower™ feature, unused portions of the core may be automatically turned

off without affecting the operational channels. In addition, individual input and output buffers may be manually powered

down for more power consumption control.

In order to improve signal integrity, each input buffer features programmable trace equalization (IE), which removes ISI

jitter that is usually caused by board trace skin effect losses. The input equalizer circuit opens the data eye in applica-

tions where long PCB traces and cables are used. The input equalizer can be enabled on a per channel basis, allowing

maximum flexibility. Built-in system test features simplify design, verification, and production testing of the system.

The crosspoint switches includes an integrated pseudo-random bit sequence generator (PRBS TX) and checker (RX).

The M21111 and M21121 are non-blocking switches with multi-cast and broadcast abilities. All inputs and outputs are

differential positive current mode logic (PCML) with 2.5V or 3.3V supply. The M21111 and M21121 both have a common

footprint and share the same software control methodology enabling a single PCB design to support both 17x17 and

34x34 system solutions. The devices are offered in a 404 ball, 23 mm Plastic Ball Grid Array (PBGA) package and are

RoHS compliant. Non-RoHS versions of the devices are available upon request.

Product Overview

Fig. 1 - M21111/21 Product Selection Chart

Power at 1.2V (W)

M21111/21

Programmable per lane input equalization

Fully non-blocking array switch matrices

Protocol agnostic

Support for video pathological patterns

Low power consumption at 2.5V supply: 2.6W for

M21111 and 4W for M21121

Extended temperature operations: 0º C to 85º C

Common footprint for M21111 and M21121

Smart Power™ and PowerScaler™

Specification

Switch Matrix

Package (mm)

3.2 Gbps 17x17/34x34 Crosspoint Switch

Features

23 mm, 404

ball PBGA

M21111

17x17

2.6

23 mm, 404

ball PBGA

M21121

34x34

Allows control in removing deterministic jitter (ISI)

Ultimate flexibility for switching and multicasting signals

One device supports multiple applications

Robust solution for SDI applications

Low thermal and power management costs

Provides higher tolerance and additional design margin

Design and layout flexibility saving development costs

Optimized power consumption based on system requirements

Fig. 2 - M21111/21 Device Architecture

Benefits

Related parts for m21121

m21121 Summary of contents

Page 1

... The M21111 and M21121 are non-blocking switches with multi-cast and broadcast abilities. All inputs and outputs are differential positive current mode logic (PCML) with 2.5V or 3.3V supply. The M21111 and M21121 both have a common footprint and share the same software control methodology enabling a single PCB design to support both 17x17 and 34x34 system solutions ...

Page 2

... High-speed automated test equipment Reclocker/ • Digital video switchers/routers SMPTE CDR 424M, 292M, 344M, 259M, DVB-ASI (270 Mbps) Package (RoHS Compliant) • M21111: 23x23 mm, 404 ball PBGA • M21121: 23x23 mm, 404 ball PBGA For more product information, please visit www.mindspeed.com ...

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