DATASHEET

OV9620/OV9120 Datasheet

Doc #DS102

© OmniVision Technologies Inc., 2002, version 2.0

Page 20

Sub-

address

(hex)

Register

Default

(hex)

Read/

Write

Descriptions

36

VCHG

17

RW

Sensor precharge voltage control

VCHG[7] – reserved

VCHG[6:4] – Sensor precharge voltage control: “000”= lowest voltage “111”=

highest voltage.

VCHG[3:0] – Sensor array common reference control: “000”= lowest voltage

“111”= highest voltage

37

ADC

04

RW

ADC reference control

ADC[7:4] – reserved

ADC[3] – ADC input signal range: “1”= input signal x0.7, “0”= input signal x1.

ADC[2:0] – ADC range control. “000”= Minimum, “111”= Maximum.

38

ACOM

12

RW

Analog Common Control

ACOM[7] – Analog gain control: “1”= Gain increase 1.5x, “0”= Normal

ACOM[6] – Analog black level calibration control: “0”= Analog BLC on, “1”= Analog

BLC off.

ACOM[5:0] – reserved.

38

ACOM

12

RW

Analog Common Control

ACOM[7] – Analog gain control: “1”= Gain increase 1.5x, “0”= Normal

ACOM[6] – Analog black level calibration control: “0”= Analog BLC on, “1”=

Analog BLC off.

ACOM[5:0] – reserved.