Mindspeed M21048 9/15/2013
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M21048
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11.88 Gbps 48x48 Asynchronous Crosspoint Switch with Equalizer and De-emphasis
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The M21024/M21036/M21048 family of devices is made up of fully non-blocking asynchronous crosspoint switches that
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operate at all data rates from 100 Mbps to 11.88 Gbps. The three products provide superior signal integrity management
capabilities through the switch core and at the IO. Each device receiver is equipped with an analog equalizer that is
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programmable and designed to equalize over 27 dB of insertion loss at 5.6 GHz. The M21024/M21036/M21048 switch core is
equipped with a sophisticated servo that automatically manages the DC offset in each channel in order to minimize jitter
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caused by duty cycle distortion. The output stages of the device are equipped with individually programmable drivers that
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operate with up to 10.5 dB of de-emphasis as well as a wide range of output voltage swing levels. Additionally, the products
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are equipped with features to assist with channel bring-up and performance monitoring. The first of these features is a pattern
generator and checker that can be used for pass/fail testing with a variety of test patterns. The second monitoring feature is a Contact Us
jitter measurement tool that enables the system to individually monitor jitter on any channel. Those features can also be used
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to configure each input equalizer for fully optimized performance. The M21024/M21036/M21048 offers many different control
plane interfaces for maximum flexibility. These control interfaces include options for 2-wire and 8-bit parallel bus as well as 4-
wire. It is also possible for the device to automatically load a configuration from an external EEPROM.
Features
48x48 non-blocking crosspoint switch
Enables channels up to 40" at 11.3 Gbps data rate
Data rates from 100 Mbps to 11.3 Gbps
Integrated Pattern Generator & Checker
Jitter measurement tool
Programmable output de-emphasis up to 10.5 dB
Individual lane LOS (Loss Of Signal) detection and squelch
Electrical Idle (EI pass-through for PCIe, SAS, and SATA signaling support)
Ordering Information
Part Description Package Pin Count Status
M21048-11P 48x48 11.88 Gbps Crosspoint Switch FCBGA 672
M21048EVM 48x48 11.88G crosspoint switch EVM n/a n/a
M21048G-11P 48x48 11.88 GBPS CROSSPOINT SWITCH FCBGA 676
M21048G-12 11.88G 36x36 MXPT (BOBCAT) n/a n/a
M21048G-12P 48x48 11.88 Gpbs Crosspoint Switch FCBGA 676
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