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 – 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 µW (typ.). March 2008 Rev 1 For further information contact your local STMicroelectronics sales office. 1/4 www.st.com 4 Overview VB6871 1 Overview Figure 1. System diagram Figure 2. Block diagram VB6871 EXTCLK XSHUTDOWN PLL and clock management WLED Application system GPIO MDDI client Control XSHUTDOWN WLED GPIO Power-on reset Sensor control registers MDDI STRB+ STRBDATA+ DATA- (STRB, DATA) Scaling Defect Correction Output De-rating Output Formatter Table 1. Y Decoder Dark Cal Readout 3.2 megapixel auto-focus camera module MDDI host VB6871 Readout Power Mgmt EXTCLK Line SRAM X Decoder Column ADC 2064 x 1544 Pixel array Column ADC X Decoder Line SRAM Technical specifications Parameter Description Pixel resolution 2064 x 1544 (QXGA = 2048x1536) Sensor technology IMG175 STs 90nm based CMOS imaging process Pixel size 1.75 µm x 1.75 µm Exposure control + 81 dB Analog gain + 24 dB (max) Digital gain + 6 dB (max) Dynamic range 60 dB Signal to noise 36 dB (@ 100 lux) Supply voltages Analog: 2.4 V - 2.9 V Digital: 1.7 V - 1.9 V Average power consumption 12.5 fps <125 mW in infinity <300 mW at macro including actuator current Package size (lxwxh) 8.5 mm x 8.5 mm x 5.9 mm Lens 51° +/- 2 HFOV F/2.8 TV distortion <|1.0%| Relative illumination 45 % (typ.) Package type SmOP2 auto-focus System attach SMIA85 socket or flex 2/4 VDIG DGND VCAP VANA AGND VB6871 2 Ordering information Ordering information Table 2. Ordering information Order code Package VB6871S0VO/TR(1) SmOP2 auto-focus Packing SMIA85 socket 1. ECOPACK® package 3 Revision history Table 3. Document revision history Date Revision 25-Mar-2008 1 Changes Initial release. 3/4 VB6871 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. 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