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