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OV7740/OV7241 VGA product brief
Ultra-High Sensitivity CMOS Image Sensor
available in
a lead-free
package
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 a
small footprint.
Using OmniVision's proprietary OmniPixel3-HS™
technology, the 1/5-inch OV7740 boasts a best-in-class
low light sensitivity of 6.0 V/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 30 frames per second (fps) in
VGA resolution and 60 fps in QVGA resolution with
complete user control over image quality, formatting and
output data transfer. It supports a digital video parallel
port, and provides full-frame, sub-sampled, windowed or
scaled 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 control
bus (SCCB) interface.
In addition, the OV7740 uses proprietary technology to
improve image quality by reducing or eliminating common
lighting/electrical sources of image contamination, such
as 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.
Find out more at www.ovt.com.
OV7740/OV7241
Applications
 PC multimedia
 Games
ordering information
 Security and Surveillance
 OV07740-A32T
(color, lead-free, 32-pin CSP3)
 OV07740-A32A
(color, lead-free, 32-pin CSP3)
 OV07241-A32A
(b&w, lead-free, 32-pin CSP3)
Product Specifications
Product Features
 support for output formats: RAW
RGB 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 external
frame synchronization
 embedded 1.5 V regulator for core
 array size: 656 x 488
 input clock frequency: 6 ~ 27 MHz
 power supply:
 max S/N ratio: 38 dB
– core: 1.5VDC ± 5%
– analog: 3.0 ~ 3.6V
– I/O: 1.7 ~ 3.47V
 dynamic range: 71 dB @ 8x gain
 max image transfer rate:
– VGA (640x480): 30 fps
– QVGA (320 x 240): 60 fps
 power requirements:
– active: 48 mA
– standby: 20 μA
 standard SCCB serial interface
 sensitivity: 6.0 V/lux-sec
 shutter: rolling shutter
 temperature range:
– operating: -30° C to 70°C
junction temperature
– stable image: 0° C to 50° C
junction temperature
 output format:
– 8-/10-bit raw RGB data
– 8-bit YUV
 maximum exposure interval:
502 x tROW
 gamma correction: programmable
 pixel size: 4.2 μm x 4.2 μm
 dark current: 30 mV/s @ 60°C
junction temperature
 lens size: 1/5"
 image area: 2755.2 μm x 2049.6 μm
 lens chief ray angle: 25°
 package dimensions:
– 4185 μm x 4345 μm
Functional Block Diagram
OV7740/OV7241
image sensor processor
image output
interface
FIFO
formatter
DSP
10-bit
A/D
AMP
digital gain
image
array
black level
calibration
row select
column
sample/hold
DVP
image sensor core
DATA[9:0]
gain
control
control register bank
4275 Burton Drive
Santa Clara, CA 95054
Version 1.3, September 2014
tel: +1 408 567 3000
fax: +1 408 567 3001
www.ovt.com
SIOD
SCCB
slave
interface
SIOC
PCLK
RESET_B
HREF
SFIN
VSYNC
timing generator
and system control logic
PWDN
XVCLK1
PLL
7740_PB_1
OmniVision reserves the right to make changes to their products or to discontinue any
product or service without further notice. OmniVision, the OmniVision logo and
OmniPixel are registered trademarks of OmniVision Technologies, Inc. OmniPixel3-HS
and CameraChip are trademarks of OmniVision Technologies, Inc. All other trademarks
are the property of their respective owners.
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