描述 Description

The PL671-01-xxx is an advanced programmable Spread Spectrum clock generator (PSSCG), and a member of PicoPLL? Programmable Clock family.The PL671-01 offers up to three 200MHz outputs, and allows for programming the modulation type (Center or Down Spread) as well as 16 modulation magnitudes (±0.125% to ±2.0% or -0.25% to -4.0%). In addition, the CSEL[0:1] pins can be used to toggle the device thru 4 pre-programmed configurations. The option of being able to turn ‘ON/OFF’ the Spread Spectrum modulation allows for completing a design with PL671-01 and having the assurance of turning ‘ON’ the EMI modulation, if EMI becomes an issue. The PL671-01’s frequency modulation greatly reduces the fundamental and harmonic frequencies’ peak magnitude, therefore reducing the system level Electro Magnetic Interference (EMI), by as much as 20dB.

特性 Features

·Advanced programmable PLL with Spread Spectrum
·Crystal or Reference Clock input:·Fundamental crystal: 10MHz to 40MHz
·Reference input: 1MHz to 200MHz

·Accepts ≥0.1V reference signal input voltage
·Output frequency range: up to 166MHz @ 2.5V or up to 200MHz @ 3.3V operation
·Up to 3 programmable outputs
·Programmable Spread Spectrum Modulation Magnitude:·Center Spread: ±0.125% to ±2.0% in ±0.125% steps
·Down Spread: -0.25% to -4.0% in 0.25% steps

·Spread Spectrum On/Off selection
·Programmable output drive (4mA, 8mA, 16mA)
·Low Cycle to Cycle jitter
·Single 2.5V or 3.3V ±10% power supply
·Operating temperature range from -40°C to +85°C
·Available in 8-pin SOP, MSOP and 6-pin SOT GREEN/RoHS compliant packaging

簡介

PL671屬于集成電路（IC）的時鐘發(fā)生器PLL頻率合成器。由制造生產(chǎn)的PL671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(qū)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。