MK5811A Datasheet | Renesas

Description The MK5811A device generates a low EMI output clock from a clock or crystal input. The device is designed to dither a high emissions clock to lower EMI in consumer applications. Using IDT’s proprietary mix of analog and digital Phase Locked Loop (PLL) technology, the device spreads the frequency spectrum of the output and reduces the frequency amplitude peaks by several d B. The MK5811A offers both centered and down spread from a high-speed clock input. For different multiplier configurations, use the MK5812 (2x) or MK5814 (4x). IDT offers many other clocks for puters and puter peripherals. Consult IDT when you need to remove crystals and oscillators from your board. Block Diagram Features - Packaged in 8-pin SOIC - Pb (lead) free package - Provides a spread spectrum output clock - Supports flat panel controllers - Accepts a clock or crystal input (provides same frequency dithered output) - Input frequency range of 4 to 32 MHz - Output frequency range of 4 to 32 MHz - 1X frequency multiplication - Center and down spread - Peak reduction by 8 d B to 16 d B typical on 3rd through 19th odd harmonics - Low EMI feature can be disabled - Operating voltage of 3.3 V - Advanced, low-power CMOS process S1:0 2 Spread Direction FRSEL X1/CLK X2 Clock Buffer/ Crystal Ocsillator The crystal requires external capacitors for accurate tuning of the clock PLL Clock Synthesis and Spread Spectrum Circuitry SSCLK IDT® LOW EMI CLOCK GENERATOR MK5811A REV D 071014 MK5811A LOW EMI CLOCK GENERATOR Pin Assignment Spread Direction and Spread Percentage X1/ICLK 1 GND 2 S1 3 S0 4 8 X2 7 VDD 6 FRSEL 5 SSCLK 8-pin (150 mil) SOIC Frequency Selection S1 S0 Pin 3 Pin...