VB6871 [STMICROELECTRONICS]
QXGA camera module with auto-focus; 支持自动对焦QXGA相机模块
| 型号： | VB6871 |
| 厂家： | 
ST |
| 描述： | QXGA camera module with auto-focus |
| 文件： | 总4页 (文件大小：102K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
VB6871
QXGA camera module with auto-focus
Data Brief
Features
■ 3.2 megapixel sensor (2064 x 1544)
■ 1.75 µm pixel size, 1/4 inch optical format
■ RGB Bayer color filter array
■ Auto-focus mechanism with simple control
interface
■ Multi-element, high quality lens
■ MDDI type 1 host / serial interface
– 450 Mbps data transfer
Description
– differential data and strobe signalling
This datasheet outlines a high performance
3.2 megapixel auto-focus camera module
(VB6871) designed for use across a range of
mobile phone handsets and accessories, via the
VESA-standard MDDI interface.
■ On-board 10-bit ADC
■ Analog binning (2x2)
■ Flash/white-LED support
■ Integrated defect correction
■ Automatic dark level calibration
■ Smooth frame rate control
■ GPIO
Designed for both video and high-quality still
image capture, the VB6871 is capable of
generating 3.2 MP raw bayer images at up to
12 fps @10-bit, and 16 fps @8-bit pixel
resolution. Higher frame rates can be achieved
with smaller image sizes, such as 30 fps for
WVGA @10-bit pixel resolution.
■ Ultra low power standby mode
■ Compact size: 8.5 mm x 8.5 mm x 5.9 mm
The module design is optimized for both footprint
and height. The auto-focus mechanism combined
with a multi-element lens provides excellent
image quality at focus distances from less than
10 cm to infinity.
All external components, including the auto-focus
actuator, are integrated within the camera
module.
VB6871 offers an ultra low power consumption
hardware standby mode consuming less than
30 µW (typ.).
March 2008
Rev 1
1/4
For further information contact your local STMicroelectronics sales office.
www.st.com
4
Overview
VB6871
1
Overview
Figure 1.
System diagram
Figure 2.
Block diagram
VB6871
EXTCLK
XSHUTDOWN
PLL and clock management
VDIG
Power Mgmt Power-on reset
EXTCLK
DGND
VB6871
3.2 megapixel
auto-focus
camera
Line SRAM
Sensor
control
registers
XSHUTDOWN
WLED
VCAP
WLED
GPIO
X Decoder
Application system
MDDI client
VANA
AGND
Column ADC
GPIO
module
Dark Cal
Scaling
2064 x 1544
Pixel array
MDDI
STRB+
STRB-
DATA+
DATA-
(STRB, DATA)
Defect
Correction
Output
Column ADC
X Decoder
De-rating
Output
Formatter
Line SRAM
Table 1.
Technical specifications
Parameter
Description
Pixel resolution
Sensor technology
Pixel size
2064 x 1544 (QXGA = 2048x1536)
IMG175 STs 90nm based CMOS imaging process
1.75 µm x 1.75 µm
+ 81 dB
Exposure control
Analog gain
+ 24 dB (max)
+ 6 dB (max)
60 dB
Digital gain
Dynamic range
Signal to noise
36 dB (@ 100 lux)
Analog: 2.4 V - 2.9 V
Digital: 1.7 V - 1.9 V
Supply voltages
<125 mW in infinity
<300 mW at macro including actuator current
Average power consumption 12.5 fps
Package size (lxwxh)
Lens
8.5 mm x 8.5 mm x 5.9 mm
51° +/- 2 HFOV F/2.8
<|1.0%|
TV distortion
Relative illumination
Package type
System attach
45 % (typ.)
SmOP2 auto-focus
SMIA85 socket or flex
2/4
VB6871
Ordering information
2
Ordering information
Table 2.
Ordering information
Order code
Package
Packing
SMIA85 socket
VB6871S0VO/TR(1)
SmOP2 auto-focus
1. ECOPACK® package
3
Revision history
Table 3.
Date
25-Mar-2008
Document revision history
Revision
Changes
1
Initial release.
3/4
VB6871
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