GRAYCHIP,INC.

- iii -

APRIL 27, 1999

GC4014 QUAD RECEIVER CHIP

DATA SHEET REV 0.5

This document contains information which may be changed at any time without notice

1.0

KEY FEATURES .........................................................................................................................1

2.0

BLOCK DIAGRAM .....................................................................................................................1

3.0

FUNCTIONAL DESCRIPTION ...................................................................................................2

3.1

CONTROL INTERFACE ....................................................................................................................... 2

3.2

INPUT FORMAT ................................................................................................................................... 3

3.3

THE DOWN CONVERTERS ................................................................................................................ 4

3.4

FINAL GAIN ADJUSTMENT ................................................................................................................ 9

3.5

SUMMATION MODES ......................................................................................................................... 9

3.6

OUTPUT MODES ............................................................................................................................... 10

3.7

CLOCKING ......................................................................................................................................... 12

3.8

POWER DOWN MODES ................................................................................................................... 12

3.9

SYNCHRONIZATION ......................................................................................................................... 12

3.10

DATA LATENCY ................................................................................................................................ 13

3.11

DIAGNOSTICS ................................................................................................................................... 13

4.0

PACKAGING .............................................................................................................................14

5.0

CONTROL REGISTERS............................................................................................................16

5.1

SYNC MODE REGISTER ................................................................................................................... 17

5.2

DECIMATION MODE REGISTER....................................................................................................... 18

5.3

CIC DECIMATION REGISTERS ......................................................................................................... 18

5.4

SCALE CONTROL REGISTER........................................................................................................... 19

5.5

CHANNEL GAIN REGISTER .............................................................................................................. 19

5.6

OUTPUT FORMAT REGISTER .......................................................................................................... 20

5.7

OUTPUT MODE REGISTER............................................................................................................... 20

5.8

BLANKING CONTROL REGISTER ....................................................................................................20

5.9

CHANNEL FLUSH CONTROL REGISTER......................................................................................... 21

5.10

COUNTER MODE REGISTERS ......................................................................................................... 21

5.11

TEST MODE REGISTER .................................................................................................................... 22

5.12

PAGE MAP REGISTER ...................................................................................................................... 22

5.13

STATUS CONTROL REGISTER ........................................................................................................ 23

5.14

CHECKSUM REGISTER..................................................................................................................... 23

5.15

CHANNEL OUTPUT PAGE (PAGE = 0) ............................................................................................. 24

5.16

KEEPALIVE STATUS PAGE (PAGE = 1) ........................................................................................... 24

5.17

CHANNEL CONTROL PAGES (PAGES 4, 5, 6, 7)............................................................................. 25

5.18

COEFFICIENT STORAGE PAGES (PAGES 8, 9, 10 and 11)............................................................ 27

6.0

SPECIFICATIONS .....................................................................................................................28

6.1

ABSOLUTE MAXIMUM RATINGS ...................................................................................................... 28

6.2

RECOMMENDED OPERATING CONDITIONS.................................................................................. 28

6.3

THERMAL CHARACTERISTICS ........................................................................................................ 28

6.4

DC CHARACTERISTICS .................................................................................................................... 29

6.5

AC CHARACTERISTICS..................................................................................................................... 30

7.0

APPLICATION NOTES..............................................................................................................31

7.1

POWER AND GROUND CONNECTIONS.......................................................................................... 31

7.2

STATIC SENSITIVE DEVICE.............................................................................................................. 31

7.3

SYNCHRONIZING MULTIPLE GC4014 CHIPS ................................................................................. 31

7.4

THERMAL MANAGEMENT................................................................................................................. 31

7.5

GSM APPLICATION............................................................................................................................ 32

7.6

DAMPS APPLICATION ....................................................................................................................... 34

7.7

DIAGNOSTICS.................................................................................................................................... 36

7.8

OUTPUT TEST CONFIGURATION ....................................................................................................38

7.9

OPTIMAL GAIN SETTINGS ................................................................................................................ 39