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