W681511

- 4 -

4. TABLE OF CONTENTS

1. GENERAL DESCRIPTION.................................................................................................................. 2

2. FEATURES ......................................................................................................................................... 2

3. BLOCK DIAGRAM .............................................................................................................................. 3

4. TABLE OF CONTENTS ...................................................................................................................... 4

5. PIN CONFIGURATION ....................................................................................................................... 6

6. PIN DESCRIPTION............................................................................................................................. 7

7. FUNCTIONAL DESCRIPTION............................................................................................................ 8

7.1. Transmit Path............................................................................................................................. 8

7.2. Receive Path.............................................................................................................................. 9

7.3. Power Management................................................................................................................. 10

7.3.1. Analog and Digital Supply .............................................................................................. 10

7.3.2. Analog Ground Reference Voltage Output .................................................................... 10

7.4. PCM Interface .......................................................................................................................... 10

7.4.1. Long Frame Sync ........................................................................................................... 10

7.4.2. Short Frame Sync .......................................................................................................... 11

7.4.3. GCI Interface .................................................................................................................. 11

7.4.4. IDL Interface................................................................................................................... 12

7.4.5. System Timing................................................................................................................ 12

8. TIMING DIAGRAMS.......................................................................................................................... 13

9. ABSOLUTE MAXIMUM RATINGS.................................................................................................... 20

9.1. Absolute Maximum Ratings ..................................................................................................... 20

9.2. Operating Conditions ............................................................................................................... 20

10. ELECTRICAL CHARACTERISTICS ............................................................................................... 21

10.1. General Parameters .............................................................................................................. 21

10.2. Analog Signal Level and Gain Parameters............................................................................ 22

10.3. Analog Distortion and Noise Parameters .............................................................................. 23

10.4. Analog Input and Output Amplifier Parameters ..................................................................... 24

10.5. Digital I/O ............................................................................................................................... 26

10.5.1. µ-Law Encode Decode Characteristics........................................................................ 26

10.5.2. A-Law Encode Decode Characteristics ....................................................................... 27

10.5.3. PCM Codes for Zero and Full Scale ............................................................................ 28

10.5.4. PCM Codes for 0dBm0 Output .................................................................................... 28

11. TYPICAL APPLICATION CIRCUIT.................................................................................................29

12. PACKAGE SPECIFICATION .......................................................................................................... 31

12.1. 20L SOG – 300mil ................................................................................................................. 31