VB6850 3.2 Megapixel QXGA camera module with auto focus Data Brief Features ■ 3.2 Megapixel resolution (2048H x 1536V) ■ 2.2 µm pixel size, 1/3.2 inch optical format ■ RGB Bayer color filter array ■ Integrated 10-bit ADC ■ Fully integrated auto-focus mechanism ■ Multi-element, high quality lens ■ SMIA Profile 2 Functional & CCP2 compliant ■ Up to 20 fps QXGA progressive scan ■ Up to 30 fps 1024x768 via sub-sampling or 2x2 analogue binning ■ Smooth frame rate control ■ Full raw Bayer down scaler from 1x to 8x in steps of 1/16th ■ Output pixel rate de-rating with scaling ■ Integrated defect correction ■ Automatic dark level calibration ■ CCP2 SubLVDS bit-serial interface (640 Mbps) ■ 2-wire 400 kHz camera control interface (CCI) ■ On-chip PLL, 6.0 to 27 MHz clock input ■ Analog power supply: 2.4 to 2.9V ■ Separate digital I/O power supply: 1.7 to 2.9V ■ Ultra low power standby mode (< 30µW) ■ 9.5 x 9.5 x 7.6 mm3 auto focus camera module with embedded passives ■ Integral EMC shielding and EMI reduction techniques ■ Lead-free RoHS compliant product January 2007 Description The VB6850 is a QXGA auto-focus raw Bayer camera module targeting mobile applications. Manufactured using ST 0.13 µm CMOS imaging process, it integrates a high performance 2.2 µm pixel and is compliant with both the functional (Profile 2) and CCP2 parts of the SMIA specification revision 1.0. VB6850 is capable of streaming QXGA raw Bayer image data up to 20 fps. 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 drivers, are integrated inside the camera module, apart from two CCI pull-up resistors. Control of the integrated AF driver is via the VB6850 CCI I/F yielding straight forward system integration. Rev 1 For further information contact your local STMicroelectronics sales office. 1/5 www.st.com 5 VB6850 Figure 1. Application diagram Figure 2. Block diagram VB6850 or Application Processor (STn8815) Sensor Control Registers Dark Cal CLKP CLKN DATAP DATAN Scaling Defect Correction Output De-rating Output Formatter Figure 3. 2/5 Outline drawing Y Decoder CCP 2.0 SCL SDA Power-On Reset Readout CCI STV0986 Imaging System Controller or Baseband CCI Slave 3 Megapixel auto-focus camera module EXTCLK XSHUTDOWN CCP2 TX VB6850 PLL and Clock Management Power Mgmt Readout EXTCLK XSHUTDOWN Line SRAM X Decoder Column ADC 2056 x 1544 Pixel array Column ADC X Decoder Line SRAM VDIG DGND VCAP VANA AGND VB6850 Table 1. Technical specifications Active Pixels 2048H x 1536V (QXGA) Physical pixel array 2056H x 1544V Pixel size 2.2 µm x 2.2 µm Color filter array RGB Bayer Sensor technology 0.13um HCMOS9I Exposure control +81 dB Analog gain +24 dB (max.) Dynamic range 60 dB (typical) Signal-to-noise ratio (SNR) 37 dB at 100 lux (typical) Frame rate 1 to 20 Hz QXGA Pixel format (s) RAW Bayer 8-bit RAW Bayer 10-bit RAW Bayer 10 to 8-bit compressed Video interface(s) CCP2 Class2 640 Mbps Control interface 400 kHz CCI Clock input 6.0 to 27 MHz square (on-chip PLL) Supply voltage Analogue: 2.7 V - 2.9 V Digital IO: 1.7 V - 2.9 V Vact: 2.8V (nominal) Power consumption <200 mW (@20 frame/s) <30 µW (standby mode) Lens 51o ±2 HFOV, f# 2.8 Depth of field 10 cm -> infinity TV distortion <|1%| Relative illumination 50% (typ) Package type AF95 Package size 9.5 mm x 9.5 mm x 7.6 mm (wlh) System attach Socket(1) and Flex(2) 1. VB6850 module is compatible with the SMIA95 socket. 2. VB6850 module is compatible with flex attach. Table 2. Temperature range Storage -40 to +85°C Functional -30 to +70°C Normal operating -25 to +55 °C Optimal operating +5 to +30°C Test 23 ± 2°C 3/5 Ordering information VB6850 Ordering information Table 3. Order codes Part number Package VB6850S02I/T2 SMIA95 AF 9.5 mm x 9.5 mm x 7.6 mm - Socket Revision history Table 4. 4/5 Document revision history Date Revision 12-Jan-2007 1 Changes Initial release. VB6850 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. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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