P1727屬于集成電路（IC）的時鐘發(fā)生器PLL頻率合成器。由安森美半導體公司制造生產(chǎn)的P1727時鐘發(fā)生器，PLL，頻率合成器時鐘發(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的穩(wěn)定定時脈沖，這些器件包括計算機、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、驅動器、分頻器、倍頻器、多路復用器、合成器、扇出分配器和預分頻器。

Product Description

The P1727 is a versatile spread spectrum frequency modulator designed specifically for a wide range of clock frequencies. The P1727 reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream (clock and data dependent signals). The P1727 allows significant system cost savings by reducing the number of circuit board layers and shielding that are traditionally required to pass EMI regulations.

特性 Features

? FCC approved method of EMI attenuation

? Generates a low EMI spread spectrum of the input clock frequency

? Optimized for frequency range: P1727X: 20MHz to 40MHz

? Internal loop filter minimizes external components and board space

? 8 different frequency deviations ranging from ±0.625 to –3.50

? Low inherent Cycle-to-cycle jitter

? 3.3V Operating Voltage

? Supports notebook VGA and other LCD timing controller applications

? Available in 8-pin SOIC.

Applications

The P1727 is targeted towards notebook LCD displays, other displays using an LVDS interface, PC peripheral devices and embedded systems.