OV9625 Datasheet, PDF(5/30 Page) List of Unclassifed Manufacturers – OV9625 Color CMOS SXGA (1.3 MPixel) CAMERACHIP OV9121 B&W CMOS SXGA (1.3 MPixel) CAMERACHIP

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

OV9625 Datasheet, PDF (5/30 Pages) List of Unclassifed Manufacturers – OV9625 Color CMOS SXGA (1.3 MPixel) CAMERACHIP OV9121 B&W CMOS SXGA (1.3 MPixel) CAMERACHIP

◁

Omni ision

Functional Description

Reset

The RESET pin (pin 10) is active high. There is an internal

pull-down (weak) resistor in the sensor so the default

status of the RESET pin is low.

Figure 9 RESET Timing Diagram

RESET

1ms

4096 External Clock

There are two ways for a sensor reset:

1. Hardware reset - Pulling the RESET pin high and

keeping it high for at least 1 ms. As shown in

Figure 9, after a reset has been initiated, the sensor

will be most stable after the period shown as 4096

External Clock.

2. Software reset - Writing 0x80 to register 0x12 (see

âCOMHâ on page 20) for a software reset. If a

software reset is used, a reset operation done twice

is recommended to make sure the sensor is stable

and ready to access registers. When performing a

software reset twice, the second reset should be

initiated after the 4096 External Clock period as

shown in Figure 9.

Two methods of power-down or standby operation are

available with the OV9625/OV9121.

â¢ Hardware power-down may be selected by pulling

the PWDN pin (pin 7) high (+3.3VDC). When this

occurs, the OV9625/OV9121 internal device clock is

halted and all internal counters are reset. The current

draw is less than 10 ÂµA in this standby mode.

â¢ Software power-down can be effected by setting the

COMC[4] register bit high. Standby current will be

less then 1 mA when in software power-down. All

SCCB Interface

OV9625/OV9121 provides an on-chip SCCB serial control

port that allows access to all internal registers, for

complete control and monitoring of OV9625/OV9121

operation.

Refer to OmniVision Technologies Serial Camera Control

Bus (SCCB) Specification for detailed usage of the SCCB

interface.

Video Output

Power-Down Mode

The PWDN pin (pin 7) is active high. There is an internal

pull-down (weak) resistor in the sensor so the default

status of the PWDN pin is low.

Figure 10 PWDN Timing Diagram

PWDN

Sensor Power Down

RGB Raw Data Output

The OV9625 CAMERACHIP offers 10-bit RGB raw data

output.

B&W Output

The OV9121 offers 10-bit luminance signal data output.

Version 1.3, September 15, 2003

Proprietary to OmniVision Technologies

▷