5P50901NBGI Renesas

DATASHEET SPREAD SPECTRUM CLOCK SYNTHESIZER IDT5P50901/2/3/4 Description Features The IDT5P50901/2/3/4 is a family of 1.8V low power, spread 8-pin DFN package (2x2mm) spectrum clock generators capable of reducing EMI 8-pin MSOP package (3x4.9mm) radiation from an input clock. Spread spectrum technique is Provides a spread spectrum output clock capable of reducing the harmonic frequency amplitude Input frequency range of 10 to 170 MHz peaks by several dB. Output frequency range of 10 to 170 MHz Ordering Information Center and down spread Peak reduction by 8 dB to 16 dB typical on 3rd through Input Frequency 19th odd harmonics 10 to 25 MHz - 5P50901NBGI/5P50901DVGI 20 to 50 MHz - 5P50902NBGI/5P50902DVGI Low EMI feature can be disabled 40 to 100 MHz - 5P50903NBGI/5P50903DVGI Operating voltage of 1.8 V, 2.5 or 3.3V 80 to 170 MHz - 5P50904NBGI/5P50904DVGI RoHS 6 compliant package Spread Modulation Frequency Table Part Input Modulation Input Modulation Modulation Number (MHz) (kHz) (MHz) (kHz) Frequency (kHz) 5P50901 10 27 25 67.5 ICLK*27/10000 5P50902 20 27 50 67.5 ICLK*27/20000 5P50903 40 27 100 67.5 ICLK*27/40000 5P50904 80 27 170 57.4 ICLK*27/80000 Block Diagram VDD 2 PLL Clock CLKOUT ICLK Synthesizer with Spread Spectrum Circuitry S2:S0 GND IDT SPREAD SPECTRUM CLOCK SYNTHESIZER 1 IDT5P50901/2/3/4 REV F 082112IDT5P50901/2/3/4 SPREAD SPECTRUM CLOCK SYNTHESIZER CLOCKSYNTHESIZER Pin Assignment 1 ICLK 8 VDD VDD CLKOUT S0 GND 4 5 S1 S2 8-pin DFN Spread Direction and Percentage Select Table S2 S1 S0 Spread Spread Direction Percentage 00 0 OFF -- 0 0 1 Center 0.25 01 0 Center 0.5 01 1 Center 1.0 10 0 Center 1.5 10 1 Center 2.0 11 0 Down -0.5 11 1 Down -1.0 Pin Description Pin Pin Pin Type Pin Description Number Name 1 ICLK Input Input clock. 2 VDD Power Voltage supply. Connect to 1.8 V 0.1 V, 2.5 V 10% or 3.3 V 10%, 3 S0 Input Function select 0 input. Selects spread amount and direction per table above. Internal pull-down resistor. 4 S1 Input Function select 1 input. Selects spread amount and direction per table above. Internal pull-down resistor. 5 S2 Input Function select 2 input. Selects spread amount and direction per table above. Internal pull-down resistor. 6 GND Power Connect to ground. 7 CLKOUT Output Clock output. 8 VDD Power Voltage supply. Connect to 1.8 V 0.1 V, 2.5 V 10% or 3.3 V 10% IDT SPREAD SPECTRUM CLOCK SYNTHESIZER 2 IDT5P50901/2/3/4 REV F 082112