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ML6430 Datasheet(PDF) 1 Page - Micro Linear Corporation |
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ML6430 Datasheet(HTML) 1 Page - Micro Linear Corporation |
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1 / 33 page  December 1998 PRELIMINARY ML6430/ML6431* Genlocking Sync Generator with Digital Audio Clock for NTSC, PAL & VGA 1 GENERAL DESCRIPTION The ML6430/ML6431 are multi-standard single-chip BiCMOS video Genlock ICs for NTSC, PAL and VGA. They are designed to provide a stable clock from an analog video signal, and to provide timing pulses for clamping, decoding, blanking and processing video signals. The ML6430/ML6431 handle VCR glitches and variations created by head switching, tape dropouts, missing sync pulses, freeze frames, high speed playback and camcorder gyro errors. The ML6430/ML6431 are designed for high noise immunity, insensitivity to varying signal amplitudes, overmodulated color carriers, and sync glitches. Advanced analog and digital clock synthesis techniques provide multi-standard and non-standard operation from a single crystal or external asynchronous clock source. Pin selectable preset modes allow operation for most video standards in simple stand-alone mode without the necessity of using the serial bus. For more demanding applications, a two wire serial control bus is available for full control of all of the ML6430/ML6431 features. The ML6430/ML6431 are ideal for clock generation in MPEG encoders, high performance display timing, and video editing. FEATURES s Line locked scalable horizontal pixel clock for an arbitrary number of pixels per line s Standard frequencies of 12.27, 13.5, 14.75MHz, or 4Fsc s 4 ´/2´ or 2´/1´ clock outputs (54 and 27MHz, or 27 and 13.5MHz) and VGA clocks s Audio clocks: 32, 44.1, or 48kHz, locked to video s On-chip sync separator, VCO and pulse generator s Low clock jitter: Short Term: <200ps rms locked s Line to line: <600ps rms (2.2ns peak-to-peak) locked s Fast recovery from VCR head switch, stable for fast shuttle speeds and pause s Single crystal or external frequency source s PAL, NTSC or VGA operation s 2 wire serial control bus, or selectable presets for stand alone operation s RS170A compatible * This Part Is End Of Life As Of August 1, 2000 BLOCK DIAGRAM ANALOG PLL DIGITAL PLL PULSE AND AUDIO CLOCK GENERATOR DIGITAL PHASE DET. AND FILTERING DIGITAL PHASE MOD. CRYSTAL OSC. XTALIN PHASE DETECTOR ÷N HORIZ. PIXEL COUNTER VERT. LINE COUNTER DYNA. STATE MACH. CONTROLLER VSYNC CVIN/ HSYNC ÷M CVREF VCC SVCC AVCC BVCC D CSYNC LOCKED HRESET FRESET GND S GND A GND B GND D SLEEP/54MHz FREERUN SCLAMP BCLAMP/BURST 1X CLOCK/4X CLOCK 2X CLOCK HBLANK VBLANK FIELD ID AUDIOCLK/PHERROUT* P0 P1 P2/S DATA P3/S CLK NOSIGNAL 6 7 8 11 12 3 13 5 10 20 30 16 17 24 25 2 1 32 31 18 19 27 28 22 23 15 29 21 9 4 XTALOUT SIGNAL DETECT MUX SYNC SEPARATOR 14 26 REF VCO SERIAL CONTROL AND PRESETS *PHERROUT IS ONLY AVAILABLE IN ML6431 |
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Similar Description - ML6430 |
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