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MK1709STR Datasheet(PDF) 1 Page - Integrated Circuit Systems |
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MK1709STR Datasheet(HTML) 1 Page - Integrated Circuit Systems |
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1 / 9 page  MK1709 MDS 1709 D 1 Revision 031204 Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com Low EMI Clock Generator Description The MK1709 generates a low EMI output clock from a clock input. The part is designed to dither the LCD interface clock for flat panel graphics controllers. The device uses ICS’ proprietary mix of analog and digital Phase Locked Loop (PLL) technology to spread the frequency spectrum of the output, thereby reducing the frequency amplitude peaks by several dB. The MK1709 offers centered spread from a high speed clock input. Refer to the MK1714-01/02 for a crystal input and the widest selection of input frequencies and multipliers. ICS offers many other clocks for computers and computer peripherals. Consult us when you need to remove crystals and oscillators from your board. Features • Packaged in 8-pin SOIC (MK1709S) and in 8-pin TSSOP (MK1709AG) • 8-pin TSSOP available in lead (Pb) free package • Provides a spread spectrum output clock • Supports flat panel controllers • Guaranteed to +85°C operation • Accepts a clock input, provides same frequency dithered output • Good for all VGA modes from 80 to 167 MHz • Peak reduction by 7dB - 14dB typical on 3rd - 19th odd harmonics • Low EMI feature can be disabled • Includes power-down • Operating voltage of 3.3 V • Advanced, low-power CMOS process Block Diagram PLL Clock Synthesis and Spread Spectrum Circuitry ICLK Input Buffer S0 Low EMI Enable Clock Out GND VDD S1 S2 |
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