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VB6871
QXGA camera module with auto-focus
Data Brief
Features

3.2 megapixel sensor (2064 x 1544) 1.75 m 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 - differential data and strobe signalling On-board 10-bit ADC Analog binning (2x2) Flash/white-LED support Integrated defect correction Automatic dark level calibration Smooth frame rate control GPIO Ultra low power standby mode Compact size: 8.5 mm x 8.5 mm x 5.9 mm
Description
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. 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. 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 W (typ.).

March 2008
Rev 1
1/4
www.st.com
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For further information contact your local STMicroelectronics sales office.
Overview
VB6871
1
Figure 1.
Overview
System diagram Figure 2. Block diagram VB6871
EXTCLK XSHUTDOWN PLL and clock management Power Mgmt Control Power-on reset Readout Line SRAM X Decoder Column ADC 2064 x 1544 Pixel array VDIG DGND VCAP VANA AGND
VB6871
3.2 megapixel auto-focus camera module
EXTCLK XSHUTDOWN WLED GPIO MDDI (STRB, DATA) Application system MDDI client
WLED GPIO
Sensor control registers Dark Cal
STRB+ STRBDATA+ DATA-
MDDI host
Scaling Defect Correction Output De-rating Output Formatter
Y Decoder Readout
Column ADC X Decoder Line SRAM
Table 1.
Technical specifications
Parameter Description 2064 x 1544 (QXGA = 2048x1536) IMG175 STs 90nm based CMOS imaging process 1.75 m x 1.75 m + 81 dB + 24 dB (max) + 6 dB (max) 60 dB 36 dB (@ 100 lux) Analog: 2.4 V - 2.9 V Digital: 1.7 V - 1.9 V <125 mW in infinity <300 mW at macro including actuator current 8.5 mm x 8.5 mm x 5.9 mm 51 +/- 2 HFOV F/2.8 <|1.0%| 45 % (typ.) SmOP2 auto-focus SMIA85 socket or flex
Pixel resolution Sensor technology Pixel size Exposure control Analog gain Digital gain Dynamic range Signal to noise Supply voltages Average power consumption 12.5 fps Package size (lxwxh) Lens TV distortion Relative illumination Package type System attach
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VB6871
Ordering information
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Ordering information
Table 2. Ordering information
Package SmOP2 auto-focus Packing SMIA85 socket
Order code VB6871S0VO/TR(1)
1. ECOPACK(R) package
3
Revision history
Table 3.
Date 25-Mar-2008
Document revision history
Revision 1 Initial release. Changes
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VB6871
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