AD9844AJST datasheet(11/16 Pages) AD

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AD9844A

–11–

REV. 0

Table II. Operation Register Contents (Default Value x000)

Optical Black Clamp

Reset

Power-Down Modes

Channel Selection

D10

D3 D2

D1 D0

Enable Clamping

0 Normal

0 Normal Power

CCD-Mode

Disable Clamping

1 Reset All

1 Fast Recovery

AUX1-Mode

Registers

0 Standby

AUX2-Mode

to Default

1 Total Power-Down 1

Test Only

*Must be set to zero. **Set to one.

Table III. VGA Gain Register Contents (Default Value x096)

MSB

LSB

D10

Gain (dB)

010111112.0

••

11111110

35.965

11111111

36.0

Table IV. Clamp Level Register Contents (Default Value x080)

MSB

LSB

D10

Clamp Level (LSB)

0000

000

0000

001

0000

010

••

11111110

254

11111111

255

Table V. Control Register Contents (Default Value x000)

Data Out

DATACLK

CLP/PBLK

SHP/SHD

CDS Gain

D10

0 Enable

0 Rising Edge Trigger

0 Active Low

0 Disabled** 0

1 Three-State

1 Falling Edge Trigger

1 Active High

1 Enabled

*Must be set to zero.

**When D3 = 0 (CDS Gain Disabled), the CDS Gain Register is fixed at –4 dB (Code 63 dec).

Table VI. CDS Gain Register Contents (Default Value x000)

MSB

LSB

D10

Gain (dB)

000000

+4.3

•

011110

+10.0

100000–2.0

•

111111+4.0

*Control Register Bit D3 must be set high for the CDS Gain Register to be used.

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