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PM5342 Datasheet(PDF) 49 Page - PMC-Sierra, Inc

Part # PM5342
Description  SONET/SDH PAYLOAD EXTRACTOR/ALIGNER
PDF  558 Pages
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Manufacturer  PMC [PMC-Sierra, Inc]
Direct Link  http://www.pmc-sierra.com
Logo PMC - PMC-Sierra, Inc

PM5342 Datasheet(HTML) 49 Page - PMC-Sierra, Inc

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PM5342 SPECTRA-155
DATA SHEET
PMC-970133
ISSUE 4
SONET/SDH PAYLOAD EXTRACTOR/ALIGNER
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
27
8
PIN DESCRIPTION (256)
Table 2
- Line Side Interface Signals (20)
Pin
Name
Pin
Type
PIN
No.
Function
RBYP
Input
U16
The receive bypass (RBYP) input selects whether
to bypass the CRU. If RBYP is high, the internal
CRU is bypassed and RRCLK+/- should contain
the receive line clock used to sample RXD+/-. If
RBYP is low, the internal CRU is used and
RRCLK+/- should contain the reference clock.
RXD+
RXD-
PECL
Input
W12
W11
The receive differential data inputs (RXD+, RXD-)
contain the 155.52 Mbit/s receive STS-3/3c
(STM-1/AU3/AU4) stream or the 51.84 Mbit/s
receive STS-1 (STM-0/AU3) stream. RXD+/- are
sampled on the rising edge of RRCLK+/- when
clock recovery is disabled (the falling edge may be
used by reversing RRCLK+/-). Otherwise the
receive clocks are recovered from the RXD+/- bit
stream. RXD+/- is expected to be NRZ encoded.
Clock recovery bypass is selectable using the
RBYP input signal.



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