RELEASED
PM4354 COMET-QUAD
DATASHEET
PMC-1990315
ISSUE 6
FOUR CHANNEL COMBINED E1/T1/J1
TRANSCEIVER / FRAMER
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC. AND FOR ITS CUSTOMERS’ INTERNAL USE
i
CONTENTS
1
FEATURES........................................................................................................................1
1.1
RECEIVER SECTION:.........................................................................................2
1.2
TRANSMITTER SECTION:..................................................................................3
2
APPLICATIONS.................................................................................................................6
3
REFERENCES..................................................................................................................7
4
APPLICATION EXAMPLE...............................................................................................10
5
BLOCK DIAGRAM........................................................................................................... 11
6
DESCRIPTION................................................................................................................12
7
PIN DIAGRAM.................................................................................................................14
8
PIN DESCRIPTION.........................................................................................................16
9
FUNCTIONAL DESCRIPTION........................................................................................33
9.1
QUADRANTS.....................................................................................................33
9.2
RECEIVE INTERFACE.......................................................................................33
9.3
CLOCK AND DATA RECOVERY (CDRC)..........................................................36
9.4
RECEIVE JITTER ATTENUATOR (RJAT) .........................................................38
9.5
T1 INBAND LOOPBACK CODE DETECTOR (IBCD)........................................39
9.6
T1 PULSE DENSITY VIOLATION DETECTOR (PDVD)....................................39
9.7
T1 FRAMER (T1-FRMR)....................................................................................39
9.8
E1 FRAMER (E1-FRMR)....................................................................................40
9.9
RECEIVE ELASTIC STORE (RX-ELST)............................................................46
9.10
SIGNALING EXTRACTOR (SIGX).....................................................................47
9.11
PERFORMANCE MONITOR COUNTERS (T1/E1-PMON)...............................47
9.12
T1 AUTOMATIC PERFORMANCE REPORT GENERATION (APRM)..............48
9.13
T1 ALARM INTEGRATOR (ALMI)......................................................................48