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STV6886 Datasheet(PDF) 1 Page - STMicroelectronics |
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STV6886 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 43 page ![]() Version 4.2 April 2000 1/43 STV6886 LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC MONITOR FEATURES General s SYNC PROCESSOR (separate or composite) s 12V SUPPLY VOLTAGE s 8V REFERENCE VOLTAGE s HOR. LOCK/UNLOCK OUTPUT s HOR. & VERT. LOCK/UNLOCK INDICATION s READ/WRITE I2C INTERFACE s HORIZONTAL AND VERTICAL MOIRE s B+ REGULATOR - Internal PWM generator for B+ current mode step-up converter - Switchable to step-down converter -I2C-adjustable B+ reference voltage - Output pulses synchronized on horizontal frequency - Internal maximum current limitation. Horizontal s Self-adaptative s Dual PLL concept s 80kHz maximum frequency s X-ray protection input s I2C controls: Horizontal duty-cycle, H-position, horizontal size amplitude Vertical s Vertical ramp generator s 50 to 120 Hz agc loop s Geometry tracking with VPOS & VAMP s I2C controls:VAMP, VPOS, S-CORR, C-CORR s Vertical breathing compensation I 2C Geometry Corrections s Vertical parabola generator (Pin Cushion - E/W, Keystone, Corner Correction) s Horizontal dynamic phase (Side Pin Balance & Parallelogram) s Horizontal and vertical dynamic focus (Horizontal Focus Amplitude, Horizontal Focus Symmetry, Vertical Focus Amplitude) DESCRIPTION The STV6886 is a monolithic integrated circuit as- sembled in a 32-pin shrink dual-in-line plastic package. This IC controls all the functions related to horizontal and vertical deflection in multimode or multi-frequency computer display monitors. The internal sync processor, combined with the powerful geometry correction block, makes the STV6886 suitable for very high performance mon- itors, using few external components. Combined with other ST components dedicated for CRT monitors (microcontroller, video preampli- fier, video amplifier, OSD controller) the STV6886 allows fully I2C bus-controlled computer display monitors to be built with a reduced number of ex- ternal components. PIN CONNECTIONS SHRINK32 (Plastic Package) ORDER CODE: STV6886 H/HVIN VSYNCIN HMOIRE/HLOCK PLL2C C0 R0 PLL1F HPOSITION HFOCUSCAP FOCUS-OUT HGND HFLY HREF COMP REGIN ISENSE 5V SDA SCL VCC BOUT GND HOUT XRAY EWOUT VOUT VCAP VREF VAGCCAP VGND VBREATH B + GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 1 |
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