MK1704A

I C R O C LOC K Description The MK1704A is an upgraded version of the MK1704 and is recommended for all new designs. It offers more reduction in the frequency amplitude peaks, and will support frequencies up to 140 MHz. The MK1704A generates a low EMI output clock from a clock input. The part is designed to dither the LCD interface clock or other clocks for flat panel graphics controllers. The MK1704A uses ICS/MicroClock’s proprietary mixture of analog and digital Phase-Locked Loop (PLL) technology to synthesize the frequency, and our patented technique to spread the frequency spectrum of the output, thereby reducing the frequency amplitude peaks by several dB. We offer many other clocks for computers and computer peripherals. Consult us when you need to remove crystals and oscillators from your board. MK1704A Low EMI Clock Generator Features Packaged in 8 pin SOIC Provides a spread spectrum output clock Supports leading flat panel controllers Accepts a clock input, provides same frequency dithered output Optimized for higher resolutions that require up to 140 MHz, as well as 40 MHz (SVGA) and 65 MHz (XVGA) clocks Peak reduction by 7dB - 14 dB typical on 3rd19th odd harmonics Low EMI feature can be disabled 3.3 V or 5 V ±10% supply voltage Advanced, low power CMOS process See the MK1714-01 for a multiplier with low EMI which can operate from a crystal Block Diagram VDD GND S0 S1 Low EMI Enable Crystal Oscillator PLL Clock Synthesis and Spread Spectrum C...