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STV-DCA/CIF-E01 Datasheet(PDF) 8 Page - STMicroelectronics |
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STV-DCA/CIF-E01 Datasheet(HTML) 8 Page - STMicroelectronics |
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8 / 60 page  PRELIMINARY Digital Camera Chipset; Customer Datasheet, Rev 3.0, March 2000 STV0680A + VV6444/6410/6500 CDSTV0680F-C Commercial in confidence 8 STV0680F_contents.fm 1.3 Sensor choices The following sensors are supported: 1.4 Key system features The key features of a typical camera based on the STV0680A chipset are as follows: 1.4.1 Image features (STV0680A-002) • Support for 5V or 3.3V CIF resolution sensor (VV6444 or VV6410) - 352 x 288 pixels • Support for 3.3V VGA resolution sensor (VV6500) - 640 x 480 pixels • 80 picture storage capacity possible for CIF, with 64MB memory • 26 picture storage capacity for VGA, with 64MBit memory • A greater number of images can be stored when ‘Low’ resolution mode is enabled (e.g. 80 QCIF images with 16Mbit memory, 106 QVGA images with 64Mbit memory). See Table 4 and Table 5. • Automatic anti-flicker exposure and gain control 1.4.2 Image features (STV0680-001) • Supports 5V CIF resolution sensor (VV6444) - 352 x 288 pixels. • 20 picture storage capacity possible for CIF with 16MB memory. • 80 picture storage capacity possible for QCIF with 16MB memory. • Automatic anti-flicker exposure and gain control 1.4.3 User features on camera • Self-timer mode allows a picture to be captured after several seconds. • Twin 7 segment LCD panel supported - showing number of pictures left, and modes. • Picture counter helps the user to know how much memory is left. • Un-tethered ‘Continuous’ mode allows capture of image sequences for storage in memory and subsequent download to PC. • Piezo buzzer indicates a number of useful events to the user, e.g. whether enough light is present for picture capture, etc. • Indicator LED. 1.4.4 User features on PC software PC software allows a number of features, including fast download of thumbnail images for picture selection, and automatic detection and correction of sensor defects. Table 3 clarifies the driver compatibility available, including: • TWAIN driver to suit all TWAIN compatible imaging applications • Video for Windows driver for tethered video mode (through USB), available at all resolutions, with fastest framerates at QCIF resolution Sensor Resolution Sensor supply voltage VV6444 CIF (352 x 288) 5v VV6410 3.3v VV6500 VGA (640 x 480) Table 2 : Sensor choices with STV0680/STV0680A |
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