PDF VV5430 Data sheet ( Hoja de datos )

Número de pieza	VV5430
Descripción	Integrated CMOS Image Sensor with support for ADC and external control via serial interface
Fabricantes	ETC
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No Preview Available ! VISION VV 5430 Monolithic Sensor Integrated CMOS Image Sensor with support for ADC and external control via serial interface PRODUCT DATASHEET DISTINCTIVE CHARACTERISTICS • Complete Video Camera on a single chip • Automatic Exposure and Gain Control • EIA/CCIR standard compatible • Automatic Black Level Calibration • Low power operation (250mW Typical) • Linear or Gamma corrected output option • Integral 75Ω driver • Control options pin selectable for ease of use • Frame & line timing signals for external ADC • External control/configuration via serial interface • Optional image output in four quarters, with out- • Industry standard 48 pin LCC package put driver tristate option for multiplexing GENERAL DESCRIPTION The VV5430 is a highly-integrated VLSI camera device based on VISION’s unique CMOS sensor technology. It is suitable for applications requiring minimum external circuitry, digitisation of the video signal or external microprocessor control. The device incorporates a 388 x 295 pixel image sensor and all the necessary support circuits to generate composite video into a 75Ω load. Additional control signals support pixel locked digitisation of the video signal. A bi-directional serial interface and internal register set allow full control and monitoring of all camera functions. Automatic control of exposure, gain and black level give a wide range of operating conditions. All major control functions are pin selectable giving maximum flexibility with ease of use. The VV5430 offers a complete camera system ideally suited for integration into digital imaging systems. BLOCK DIAGRAM VERTICAL SHIFT REGISTER CKOUT CKIN SIN CPE FST LST PV PVB ODD SDA SCL SAB0 SAB1 CLOCK CIRCUIT IMAGE CAPTURE SERIAL I/F PHOTO DIODE ARRAY DIGITAL CONTROL LOGIC. COLUMN SENSE AMPLIFIERS SAMPLE & HOLD ANALOG VOLTAGE REFS. VIDEO BUFFER HORIZONTAL SHIFT REGISTER VIDEO AMP AGC AEC RESETB LIN BKLIT CCIR VRT Vbloom VOFF VBG EBCK EVWT 2V7 AVO 5V Pixel Format 384 x 287 (CCIR) 320 x 243 (EIA) Pixel Size 12µm x 12µm Array Size 4.66mm x 3.54mm Min. illumination 0.5 lux (Standard Clock) S/N Typically 52dB Exposure control Automatic (to 146000:1) Gain Control Up to +20dB Power Supply 5v ±5% Power Temperature < 300 mW 0oC - 40oC cd27033c.fm 1 1 page Specifications Operating Characteristics Parameter min. typ. max. units Note Dark Current Signal 50 Sensitivity Min. Illumination Shading Random Noise Smear Flicker Lag Blooming 6 0.5 TBA -52 TBA TBA TBA TBA mV/Sec Modal pixel voltage due to photodiode leak- age under zero illumination with Gain=1 (Vdark = (Vt1 - Vt2)/(t1-t2), calculated over two different frames V/Lux·Sec VAve/Lux·10ms, where Lux gives 50% satu- ration with Gain=1 and Exposure=10ms Lux Standard CCIR clock % Variance of Vave over eight equal blocks at 66% saturation level illumination dB RMS variance of all pixels, at 66% satura- tion, over four frames % Ratio of Vave of the area outside a rectangle 25 lines high illuminated at 500xV50% level to VAve of the rectangle % Variation of Vave of one line from field to field at 66% saturation level illumination % Average residual signal with no illumination in the field following one field of 66% sat. illumination Ratio of spot illumination level that produces 0.1xVsat output from immediately around the spot to the Vsat spot illumination level (pin- hole target) Note: Devices are normaly not 100% tested for the above characterisation parameters, other than Dark Current Signal (see Blemish Specification below). All voltage (VA, Vave, Vsat, Vxx%) measurements are referenced to the black level, Vblack, and spot blemishes are excluded (see Blemish Specification below). Vxx% refers to the output that is xx% of saturation, that is peak white. Test Conditions The sensor is tested using the example support circuit illustrated later in this document. Standard imaging conditions used for optical tests employ a tungsten halogen lamp to uniformly illuminate the sensor (to better than 0.5%), or to illuminate specific areas. A neutral density filter is used to control the level of illumination where required. Illumination Colour Temp. Clock Frequency Exposure Gain Auto. Gain Control (AGC) Correction mode 3200o K Std. CCIR Maximum x1 Off Linear 09/04/97 5 5 Page Video Standards CCIR Timing Diagram line time reference point {rise times line blank 0.3 ± 0.1µs (10% - 90%) line sync. 0.25 ± 0.05µs line period H = 64µs line sync. 4.7µs back porch 5.8µs front porch 1.5µs peak white level 2.3v 0.9v black & blanking level 0.3v sync. level CCIR composite video signal - line level timing field 0 2.5H frame start field 1 2.5H 2.5H field 1 2.5H 26H field 2 2.5H 2.5H 25H 09/04/97 CCIR composite video signal - field level timing 11 11 Page

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