MK5814CMLFT Renesas

DATASHEET LOW EMI CLOCK GENERATOR MK5814C Description Features The MK5814C device generates a low EMI output clock Packaged in 8-pin SOIC from a clock or crystal input. The device is designed to Provides a spread spectrum output clock dither a high emissions clock to lower EMI in consumer Supports printers and flat panel controllers applications. Using IDTs proprietary mix of analog and digital Phase Locked Loop (PLL) technology, the device Accepts a clock or crystal input (provides same spreads the frequency spectrum of the output and reduces frequency dithered output) the frequency amplitude peaks by several dB. The Input frequency range of 4 to 32 MHz with spread off MK5814C offers both centered and down spread from a Input frequency range of 4 to 25 MHz with spread on high-speed clock input. The multiplier is a fixed 4x. 4X frequency multiplication For different multiplier configurations, use the MK5811C Center spread, down spread, and spread off settings (1x) or MK5812 (2x). Peak reduction by 8 dB to 16 dB typical on 3rd through IDT offers many other clocks for computers and computer 19th odd harmonics peripherals. Consult IDT when you need to remove crystals and oscillators from your board. Operating voltage of 3.3 V Advanced, low-power CMOS process Block Diagram VDD 2 S1:0 Spread Direction PLL Clock FRSEL Synthesis and Spread SSCLK Spectrum X1/CLK Circuitry Clock Buffer/ Crystal Ocsillator X2 The crystal requires external capacitors GND for accurate tuning of the clock IDT LOW EMI CLOCK GENERATOR 1 MK5814C REV C 070612MK5814C LOW EMI CLOCK GENERATOR SSCG Pin Assignment Spread Direction and Spread Percentage S1 S0 Spread Spread Pin 3 Pin 4 Direction Percentage X1/ICLK 8 1 X2 0 0Center 1.4 GND 2 7 VDD 0 MCenter 1.1 S1 3 6 FRSEL 0 1Center 0.6 S0 5 M 0Center 0.5 4 SSCLK M M No Spread - M 1 Down -1.6 8-pin (150 mil) SOIC 1 0Down -2.0 1 MDown -0.7 1 1 Down -3.0 0 = connect to GND M = unconnected (floating) 1 = connect directly to VDD Frequency Selection Product FRSEL Input Multiplier Output (pin 6) Freq. Range Freq. Range 1 MK5811C 0 4.0 to 8.0 MHz X1 4.0 to 8.0 MHz 1 8.0 to 16.0MHz X1 8.0 to 16.0MHz M 16.0 to 32.0MHz X1 16.0 to 32.0MHz 1 MK5812 0 4.0 to 8.0 MHz X2 8.0 to 16.0MHz 1 8.0 to 16.0MHz X2 16.0 to 32.0MHz M 16.0 to 32.0MHz X2 32.0 to 64.0MHz MK5814C 0 4.0 to 8.0 MHz X4 16.0 to 32.0MHz 1 8.0 to 16.0MHz X4 32.0 to 64.0MHz M 16.0 to 32.0MHz X4 64.0 to 128MHz 0 = connect to GND M = unconnected (floating) 1 = connect directly to VDD Note 1: The information in this datasheet does not apply to the MK5811C and MK5812 as each have independent datasheets available at www.idt.com. IDT LOW EMI CLOCK GENERATOR 2 MK5814C REV C 070612