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PL671-01

PLL
Part Number PL671-01
Manufacturer PLL
Description Programmable Spread Spectrum Clock
Published Jul 31, 2009
Detailed Description www.DataSheet4U.com (Preliminary) PL671-01 PicoEMI T M Programmable Spread Spectrum Clock FEATURES • Advanced program...
Datasheet PDF File PL671-01 PDF File

PL671-01
PL671-01

Overview
www.
DataSheet4U.
com (Preliminary) PL671-01 PicoEMI T M Programmable Spread Spectrum Clock FEATURES • Advanced programmable PLL with Spread Spectrum • Crystal or Reference Clock input o Fundamental crystal: 10MHz to 40MHz o 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: o Center Spread: ±0.
125% to ±2.
0% in ±0.
125% steps o 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 • Available in 8-pin SOP, MSOP and 6-pin SOT GREEN/RoHS compliant packaging DESCRIPTION The PL671-01 is an advanced programmable Spread Spectrum clock generator (PSSCG), and a member of PhaseLink’s 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 PIN CONFIGURATION Note: ^ Denotes 60K Ω Pull-up resistor BLOCK DIAGRAM VCO REF OUT VCO 47745 Fremont Blvd.
, Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.
phaselink.
com Rev 2/9/2007 Page 1 www.
DataSheet4U.
com (Preliminary) PL671-01 PicoEMI T M Programmable Spread Spectrum Clock PACKAGE PIN ASSIGNMENT Name XIN/FIN...


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