Product Brief
M21351/2/3 4.25 Gbps Backplane Signal Conditioners
> Product Overview
Mindspeed’s family of 4.25 Gbps backplane signal conditioners feature small form factor, low power devices that en-
able data transmission over long backplanes at speeds up to 4.25 Gbps. Mindspeed’s Amplif-Eye™ signal conditioning
technology enables transmission of 4.25 Gbps data over significant distances while traversing two backplane connec-
tors. These products are specifically designed to operate in environments that suffer from both loss and reflection.
Each device channel features an independent equalizer and driver with programmable output swing and de-emphasis
to maximize power efficiency. Virtually any digital protocol can be transmitted through the devices at speeds from
50 Mbps to 4.25 Gbps. The list of supported protocols includes: PCI Express, SATA, SAS, Infiniband, 2 x XAUI and Fibre
Channel. Mindspeed’s backplane signal conditioners are designed to recognize and transparently relay out-of-band
(OOB) signals for SATA/SAS and PCI Express. All devices include fully non-blocking switch matrices that allow for
simple switching as well as multi-cast functionality. Matrices can also be configured as failover switches. All devices
operate from -20° to +85°C. Devices can either be configured via a 2 wire interface or EPROM.
Features Benefits
>Fully non-blocking switch matrices Ultimate flexibility for switching and copying signals
>SMPTE 424M, 344M, 292M, 259M, and DVB-ASI compatible Robust video compatibility
>Input equalization and output de-emphasis available Maximizes transmission length
>Low power usage per channel Minimizes cost to operate and cool
>Small QFN packages Provides space efficiency and reliability
>Out of band signaling support Allows for seamless integration into PCIe, SATA and SAS
>Protocol agnostic One device supports multiple applications
>1.2 Volt core / optional 1.2 or 1.8 Volt IO Flexibility to use right power performance
>Extended temperature range (-20° to 85° C) Provides additional margin for most applications
>Data rate independent Operates to 4.25 Gbps, no reference clock required
>
®
Mindspeed Signal Integrity
M21351 M21352 M21353
Switch Matrix 4x4 8x8 12x12
Power (mW) at 1.2V 580 920 1300
Package (mm) 6x6
40 pin QFN
10x10
72 pin QFN
12x12
88 pin QFN
EQ Control Type Adaptive Program Program
Fig. 1 - Product Selector Table Fig. 2 - Mindspeed Signal Integrity
www.mindspeed.com/salesoffices
General Information: (949) 579-3000
Headquarters – Newport Beach
4000 MacArthur Blvd., East Tower
Newport Beach, CA 92660-3007
M21351-2-3-BRF-001-D.pdf
For more product information, please visit www.mindspeed.com.
Fig. 3 - M21353 Application Diagram: Failover / Redundancy Switch
> Product Features
Source
M21353
Failover Mode Backplane
Note: M21353
supports 3 instances
of configuration
shown
Copy
Switch
Switch Cards /
Disk Drives
Target A
Target B
© 2010 Mindspeed Technologies, Inc. All rights reserved. Mindspeed and the Mindspeed logo are
trademarks of Mindspeed Technologies, Inc. All other trademarks are the property of their respective
owners. Although Mindspeed Technologies, Inc. strives for accuracy in all its publications, this material
may contain errors or omissions and is subject to change without notice. This material is provided as
is and without any express or implied warranties, including merchantability, fitness for a particular
purpose and non-infringement. Mindspeed Technologies, Inc. shall not be liable for any special,
indirect, incidental or consequential damages as a result of its use.
16 dB
EQ
6 dB
Prog
De-emph
Non - Blocking
Switch Matrix
Fig. 5 - 4.25 Gbps Equalized After 40” Trace
Fig. 4 - M21451/2/3 Device Architecture
•Protocol agnostic
•Supports SMPTE 424M, 344M, 292M, and 259M, DVB-ASI
•Supports rates from 50 Mbps to 4.25 Gbps
•Transparently relays OOB/EBI
•Extended temperature range -20° to +85°C
•Boundary scan
•1.2V core
•1.2V or 1.8V IO option
Applications
•Backplane equalizer / driver
•SDI video and DVB-ASI equipment
•SATA / SAS redundancy switch
•Blade server board to board interconnect
•Infiniband reach extension
•PCI Express failover switch
