CS7622

2

DS322PP1

TABLE OF CONTENTS

1.0 CHARACTERISTICS/SPECIFICATIONS ........................................................... 4

1.1

DIGITAL CHARACTERISTICS.................................................................... 4

1.2

POWER CONSUMPTION ........................................................................... 4

1.3

RECOMMENDED OPERATING CHARACTERISTICS............................... 4

1.4

ABSOLUTE MAXIMUM RATINGS .............................................................. 4

1.5

ADC (ANALOG-TO-DIGITAL CONVERTER).............................................. 5

1.6

CDS/VGA PARAMETERS........................................................................... 5

1.7

SERIAL INTERFACE TIMING SPECIFICATIONS ...................................... 5

2.0 GENERAL DESCRIPTION .................................................................................. 7

3.0 OPERATION ........................................................................................................ 8

3.1

CDS/VGA (correlated double sampling/variable gain amplification) ........... 8

3.2

Black Level Adjustment ............................................................................ 10

3.3

Gain Adjust Block ..................................................................................... 11

3.4

13-to-10 Bit Compander ........................................................................... 12

3.5

Stand By and Preview Mode ................................................................... 14

3.6

Serial Interface .......................................................................................... 14

3.7

Input Timing for Sampling Clocks ............................................................. 15

4.0 REGISTER DESCRIPTIONS ............................................................................. 17

Reset ........................................................................................................ 18

Power down Control 1 .............................................................................. 18

Operation Control 1 .................................................................................. 19

Operation Control 2 .................................................................................. 20

Black Level Control (8 LSBs) .................................................................... 20

Black Level Control (MSB) ........................................................................ 21

Black Level Control - General ................................................................... 21

Black Level Control - Loop Gain, Clamp Length ....................................... 22

Gain Calibration Offset 1 .......................................................................... 23

Gain Calibration Offset 2 .......................................................................... 23

Gain Calibration Offset 3 .......................................................................... 23

Fixed Gain ................................................................................................ 25

Compander - Black slope, Slopes (MSBs) ............................................... 27

Compander Slope 1 (LSBs) ...................................................................... 27

Compander Slope 2 (LSBs) ...................................................................... 27

Compander Slope 3 (LSBs) ...................................................................... 28

Compander Slope 4 (LSBs) ...................................................................... 28

Compander Offset 1 ................................................................................. 28

Compander Offset 2 (MSBs) .................................................................... 29

Compander Offset 2 (LSBs) ..................................................................... 29

Compander Offset 3 (LSBs) ..................................................................... 29

Compander Offset 4 (LSBs) ..................................................................... 29

Contacting Cirrus Logic Support

For a complete listing of Direct Sales, Distributor, and Sales Representative contacts, visit the Cirrus Logic web site at:

http://www.cirrus.com/corporate/contacts/

Preliminary product information describes products which are in production, but for which full characterization data is not yet available. Advance product infor-

mation describes products which are in development and subject to development changes. Cirrus Logic, Inc. has made best efforts to ensure that the information

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any kind (express or implied). No responsibility is assumed by Cirrus Logic, Inc. for the use of this information, nor for infringements of patents or other rights

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