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IDT5V50009

器件名称: IDT5V50009
功能描述: SPREAD SPECTRUM CLOCK GENERATOR
文件大小: 181.98KB    共8页
生产厂商: IDT
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简  介:DATASHEET SPREAD SPECTRUM CLOCK GENERATOR Description The IDT5V50009 generates a low EMI output clock and a reference clock from a clock or crystal input. The part is designed to lower EMI through the application of spreading a clock. Using IDT’s proprietary mix of analog and digital Phase-Locked Loop (PLL) technology, the device spreads the frequency spectrum of the output, reducing the frequency amplitude peaks by several dB depending on spread range. The IDT5V50009 offers a range of down spread from a high speed clock or crystal input. The IDT5V50009 generates one modulated (SSCLK) and unmodulated (REFCLK) clock. The modulated clock is controlled by the select pin, and the unmodulated clock has the same frequency as the input clock or crystal. IDT5V50009 Features Packaged in 8-pin SOIC Available in Pb (lead) free package Input frequency range 20- 40 MHz Provides modulated and unmodulated clocks Accepts a clock or crystal input Provides down spread modulation Provides power down function Reduce electromagnetic interference (EMI) by 8-16 db Operating voltage of 3.3 V Advanced, low-power CMOS process Block Diagram VDD PD S0 PLL Clock Synthesis and Spread Spectrum Circuitry REFCLK X1/CLK Clock Buffer/ Crystal Ocsillator X2 External caps required for with crystal for accurate tuning of the clock SSCLK GND IDT SPREAD SPECTRUM CLOCK GENERATOR 1 IDT5V50009 REV C 040609 IDT5V50009 SPREAD SPECTRUM CLOCK GENERATOR SSCG Pin Assignment X1/ICLK GND S0 SSCLK 1 ……
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器件名 功能描述 生产厂商
IDT5V50009 SPREAD SPECTRUM CLOCK GENERATOR IDT
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