PRELIMINARY
PM4318 OCTLIU
DATASHEET
PMC- 2001578
ISSUE 3
OCTAL E1/T1/J1 LINE INTERFACE DEVICE
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
i
CONTENTS
1
FEATURES........................................................................................................................1
1.1
EACH RECEIVER SECTION:..............................................................................2
1.2
EACH TRANSMITTER SECTION:.......................................................................2
2
APPLICATIONS.................................................................................................................4
3
REFERENCES..................................................................................................................5
4
APPLICATION EXAMPLES...............................................................................................7
5
BLOCK DIAGRAM.............................................................................................................9
6
DESCRIPTION................................................................................................................ 11
7
PIN DIAGRAM.................................................................................................................12
8
PIN DESCRIPTION.........................................................................................................13
9
FUNCTIONAL DESCRIPTION........................................................................................35
9.1
OCTANTS...........................................................................................................35
9.2
RECEIVE INTERFACE ......................................................................................35
1.3
CLOCK AND DATA RECOVERY (CDRC)..........................................................36
1.4
RECEIVE JITTER ATTENUATOR (RJAT).........................................................38
1.5
T1 INBAND LOOPBACK CODE DETECTOR (IBCD) .......................................38
1.6
T1 PULSE DENSITY VIOLATION DETECTOR (PDVD) ...................................39
1.7
PERFORMANCE MONITOR COUNTERS (PMON)..........................................39
1.8
PSEUDO RANDOM BINARY SEQUENCE GENERATION AND DETECTION
(PRBS) ...............................................................................................................39
1.9
T1 INBAND LOOPBACK CODE GENERATOR (XIBC).....................................39
1.10
PULSE DENSITY ENFORCER (XPDE).............................................................39
1.11
TRANSMIT JITTER ATTENUATOR (TJAT) .......................................................40
1.12
LINE TRANSMITTER.........................................................................................44
1.13
TIMING OPTIONS (TOPS) ................................................................................44