SI5355屬于集成電路（IC）的時(shí)鐘發(fā)生器PLL頻率合成器。由美國思佳訊公司制造生產(chǎn)的SI5355時(shí)鐘發(fā)生器，PLL，頻率合成器時(shí)鐘發(fā)生器、PLL 和頻率合成器集成電路 (IC) 可為邏輯器件提供參考信號(hào)的穩(wěn)定定時(shí)脈沖，這些器件包括計(jì)算機(jī)、微控制器、數(shù)據(jù)通信系統(tǒng)和圖形/視頻發(fā)生器。這些集成電路可能包括緩沖器、驅(qū)動(dòng)器、分頻器、倍頻器、多路復(fù)用器、合成器、扇出分配器和預(yù)分頻器。

特性 Features

? Generates any frequency from 1 to

200 MHz on each of the 4 output banks

? Eight CMOS clock outputs

? Guaranteed 0 ppm frequency synthesis

error for any combination of frequencies

? 25 or 27 MHz xtal or 5–200 MHz input clk

? Five programmable control pins (output

enable, frequency select, reset)

? Separate OEB pins to disable individual

banks or all outputs

? Loss of signal output

? Low 50 ps (typ) pk-pk period jitter

? Phase jitter: 2 ps rms 12 kHz–20 MHz

? Excellent PSRR performance

eliminates need for external power

supply filtering

? Low power: 45 mA (core)

? Core VDD: 1.8, 2.5, or 3.3 V

? Separate VDDO for each bank of

outputs: 1.8, 2.5, or 3.3 V

? Small size: 4x4 mm 24-QFN

? Industrial temperature range:

–40 to +85 °C

? Custom versions available using

ClockBuilder? web utility

? Samples available in 2 weeks