PE3291 datasheet(3/15 Pages) PEREGRINE

No de pièce	PE3291

Description	1200 MHz / 550 MHz Dual Fractional-N FlexiPower??PLL for Frequency Synthesis

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Fabricant	PEREGRINE [Peregrine Semiconductor Corp.]

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Product Specification

PE3291

Page 3 of 15

Document No. 70-0009-04

│ www.psemi.com

PE3291 Description

The PE3291 is intended for such applications as

the local oscillator for the RF and first IF of dual-

conversion transceivers. The RF PLL (PLL1)

includes a 32/33 prescaler with a 1200 MHz

maximum frequency of operation, where the IF

PLL (PLL2) incorporates a 16/17 prescaler with a

550 MHz maximum frequency of operation. Using

an advanced fractional-N phase-locked loop

technique, the PE3291 can generate a stable,

very low phase-noise signal. The dual fractional

architecture allows fine resolution in both PLLs,

with no degradation in phase noise performance.

Data is transferred into the PE3291 via a three-

wire interface (Data, Clock, LE). Supply voltage

can range from 2.7 to 3.3 volts for VDD and from

0.8 to 3.3 volts for the FlexiPower supply. PE3291

features very low power consumption and is

available in a 20-lead TSSOP (JEDEC MO-153-

AC) package.

FlexiPower Operation

Each FlexiPower PLL prescaler can be supplied

its own dedicated supply voltage as low as 0.8

volts for substantial power savings. The maximum

frequency of operation scales with the FlexiPower

supply voltage. If voltages less than VDD are not

available, the FlexiPower supplies can be

internally generated, but the power savings will

not be as great as when using external

FlexiPower supplies.

Spurious Response

A critical parameter for synthesizer designs is

spurious output. Spurs occur at the integer

multiples of the step size away from center tone.

An important feature of fractional synthesizers is

their ability to reduce these spurious sidebands.

The PE3291 has a built-in method for reducing

these spurs, with no external components or

tuning required. In addition, this circuitry works

over the full commercial temperature range.

Figure 4. PE3291 Block Diagram

32/33

Prescaler

f

in1

19-bit Fractional-N

Main Divider

Fractional Spur

Compensation

Fractional Spur

Compensation

18-bit Fractional-N

Main Divider

9-bit Reference

Divider

9-bit Reference

Divider

21-bit Serial Control

Interface

Ref.

Amp.

f

r

Clock

Data

LE

f

in2

16/17

Prescaler

f

oLD

CP1

CP2

Phase

Detector

Phase

Detector

Charge

Pump

Charge

Pump

Multiplexer

Numéro de pièce similaire - PE3291

Fabricant	No de pièce	Fiches technique	Description
Pasternack Enterprises,...	PE3291	264Kb / 1P	CABLE ASSEMBLY, RG174A/U, SMA MALE TO N MALE
	PE3291-12	264Kb / 1P	CABLE ASSEMBLY, RG174A/U, SMA MALE TO N MALE
	PE3291-24	264Kb / 1P	CABLE ASSEMBLY, RG174A/U, SMA MALE TO N MALE
	PE3291-36	264Kb / 1P	CABLE ASSEMBLY, RG174A/U, SMA MALE TO N MALE
	PE3291-48	264Kb / 1P	CABLE ASSEMBLY, RG174A/U, SMA MALE TO N MALE

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Description similaire - PE3291

Fabricant	No de pièce	Fiches technique	Description
Peregrine Semiconductor...	PE3282A	213Kb / 14P	1.1 GHz/510 MHz Dual Fractional-N PLL IC for Frequency Synthesis
List of Unclassifed Man...	PE3293	266Kb / 18P	1.8GHz/550MHz Dual Fractional-N Ultra-Low Spurious PLL for Frequency Synthesis
Analog Devices	ADRF6604	834Kb / 32P	1200 MHz to 3600 MHz Rx Mixer with Integrated Fractional-N PLL and VCO
Fujitsu Component Limit...	MB15F8XUL	201Kb / 6P	Fractional-N / Integer dual PLL Frequency Synthesizers
KR Electronics, Inc.	2876	35Kb / 2P	550 MHz Center Frequency
Fuji Electric	E421371	323Kb / 29P	Fractional-N PLL Frequency Synthesizer
Motorola, Inc	MC145181	957Kb / 71P	Dual 550/60 MHz PLL Frequency Synthesizer with DACs and Voltage Multiplier
Fujitsu Component Limit...	MB15F88UL	315Kb / 29P	Fractional-N PLL Frequency Synthesizer
	MB15F83UL	304Kb / 29P	Fractional-N PLL Frequency Synthesizer
	MB15F86UL	313Kb / 28P	Fractional-N PLL Frequency Synthesizer

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PE3291 Fiches technique(PDF) 3 Page - Peregrine Semiconductor Corp.

PE3291 Fiches technique(HTML) 3 Page - Peregrine Semiconductor Corp.

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