3.3V AnyRate鈩?/div>
MUX/DEMUX
Up to 2.7GHz
FEATURES
s
Protocol transparent mux/demux operation up to
2.7GHz
s
Programmable to 4, 5, 8, or 10 bit parallel interfaces
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Differential clock and serial inputs/outputs
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Easily controlled by framer logic
s
Synchronous frame boundary indication
s
HSPC (High Speed PECL Compatible) inputs and
outputs
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3.3V power supply
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Available in 80-pin LQFP-PQ2 package
SY87724L
FINAL
DESCRIPTION
The SY87724L is a complete serial data multiplexer and
demultiplexer, capable of operating at up to 2.7GHz. The
device provides for muxing and demuxing to 4, 5, 8, or 10
bit wide buses.
The SY87724L can accept a synchronous code group or
octet boundary input, and uses this input for parallel data
alignment.
The SY87724L is manufactured in Micrel鈥檚 high
performance ASSET2鈩?silicon bipolar process.
Micrel provides a complete protocol transparent solution
with the AnyRate鈩?SY87721L CDR/CMU SY87729L, and
the SY87724L integrated mux/demux.
APPLICATIONS
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OC-3, OC-12, OC-48, ATM, InfiniBand
s
s
s
s
s
Gigabit Ethernet
Fibre Channel, 2X Fibre Channel
SMPTE-259 and 292
Proprietary optical transport
ITU G. 975 Solutions
SYSTEM BLOCK DIAGRAM
SY889x3
FIBER
PIN DIODE
TIA
POST AMP
SY87721L
RDATA
SY87724L
4, 5, 8, 10 bits
RCLK
DEMUX
LOCK
AnyRate鈩?/div>
CDR
TCLK
One
REF_XTAL
MUX
4, 5, 8, 10 bits
SY87729L
REF_CLK
CMU
AnyClock鈩?/div>
Fractional
Synthesizer
SEL CD
SY889x2
FIBER
LASER
DIODE
LASER
DIODE
DRIVER
AnyRate is a trademark of Micrel, Inc.
Rev.: A
Amendment: /0
1
Issue Date: September 2001
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