OV7740 VGA product brief

ultra-high sensitivity CMOS image sensor
available ina lead-freepackage

The OV7740 (color) CameraChip™ sensor is a low power,
high sensitivity VGA CMOS image sensor that provides
the full functionality of a single-chip VGA camera in asmall footprint.
Using OmniVision's proprietary OmniPixel3-HS™
technology, the 1/5-inch OV7740 boasts a best-in-class
low light sensitivity of 6800mV/(Lux-sec), making it ideal
for integrated notebook cameras, as well as stand-alone
PC webcams, security and gaming applications.
The OV7740 can operate at 60 frames per second (fps) in
VGA resolution and 120 fps in QVGA resolution withcomplete user control over image quality, formatting andoutput data transfer. It supports a digital video parallel
port, and provides full-frame, sub-sampled, windowed orscaled 8-bit/10-bit RAW RGB and 8-bit YUV images.

All required image processing functions including
exposure control, gamma, white balance, color saturation,
hue control, defective pixel canceling, noise canceling,etc., are programmable through the serial camera controlbus (SCCB) interface.
In addition, the OV7740 uses proprietary technology toimprove image quality by reducing or eliminating common
lighting/electrical sources of image contamination, suchas fixed pattern noise and smearing, to produce a clean
and fully stable color image.
For storage purposes, the OV7740 also includes one-time
programmable (OTP) memory.

OV7740

applications
 PC multimedia
 security/surveillance toys/games

ordering information
 OV07740-A32A(color, lead-free, 32-pin CSP3)

 OV07740-G00A(color, chip probing, no backgrinding)

product specifications

product features
 support for output formats: RAWRGB and YUV

 digital video port (DVP) parallel
output interface

 support for image sizes: VGA, QVGA,  embedded one-time programmable
CIF and any size smaller(OTP) memory
 support for black sun cancellation

 on-chip phase lock loop (PLL) support for internal and externalframe synchronization

 embedded 1.5 V regulator for core array size: 656 x 488

 max image transfer rate:– VGA (640x480): 60 fps– QVGA (320 x 240): 120 fps

 power supply:– core: 1.5VDC ± 5%– analog: 3.3V ± 5%
– I/O: 1.7 ~ 3.47V

 sensitivity: 6800 mV/(Lux-sec)
 maximum exposure interval:
502 x tROW

 temperature range:– operating: -30° C to 70°C
– stable image: 0° C to 50° C

 standard SCCB serial interface

 pixel size: 4.2 μm x 4.2 μm
 image area: 2755.2 μm x 2049.6 μm

 output format:

 package/die dimensions:– 8-/10-bit raw RGB data
– 8-bit YUV– CSP3: 4185 μm x 4345 μm– COB: 4200 μm x 4360 μm

 lens size: 1/5"
 input clock frequency: 6 ~ 27 MHz

functional block diagram
OV7740image sensor core

image sensor processor

image output
interface

FIFO

formatter

DSP

10-bit
A/DAMPdigital gain

imagearray

black level
calibration

row selectcolumnsample/holdDVP

gain
control

tel: +1 408 567 3000
fax: +1 408 567 3001
www.ovt.com

SIOD

SIOC

Version 1.0, September 2008

PCLK

PWDN

4275 Burton Drive
Santa Clara, CA 95054

HREF

SCCB
slave
interface

SFIN

timing generator
and system control logic

VSYNC

PLL

XVCLK1control register bank

7740_PB_1

OmniVision reserves the right to make changes to their products or to discontinue any
product or service without further notice. OmniVision and OmniPixel are registeredtrademarks of OmniVision Technologies, Inc. The OmniVision logo, OmniPixel3-HS andCameraChip are trademarks of OmniVision Technologies, Inc. All other trademarks are
the property of their respective owners.

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