Analog Frequency Multiplier

PL560-xx VCXO Family

47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990, FAX (510) 492-0991 www.phaselink.com Rev. 02/09/07 Page 1

PRODUCT DESCRIPTION

PhaseLink’s Analog Frequency MultiplierTM (AFM) is

the industry’s first ‘Balanced Oscillator’ utilizing

analog multiplication of the fundamental frequency

(at double or quadruple frequency), combined with

an attenuation of the fundamental of the reference

crystal, without the use of a phase-locked loop

(PLL), in CMOS technology.

PhaseLink’s patent pending PL560-xx family of AFM

products can achieve up to 800 MHz output

frequency with little jitter or phase noise

deterioration. In addition, the low frequency input

crystal requirement makes the AFMs the most

affordable high-performance timing-source in the

market.

PL560-xx family of products utilize low-power CMOS

technology and are housed in GREEN/ RoHS

compliant

16-pin TSSOP, and 16-pin 3x3 QFN

packages.

FEATURES

• Non-PLL frequency multiplication

• Input frequency from 30-200 MHz

• Output frequency from 60-800 MHz

• Low phase noise and jitter (equivalent to fundamental

crystal at the output frequency)

• Ultra-low jitter

o

RMS phase jitter < 0.25 ps (12kHz-20MHz)

o

RMS period jitter < 2.5 ps

• Low phase noise

o

-142 dBc/Hz @100kHz offset from 155.52 MHz

o

-150 dBc/Hz @10MHz offset from 155.52 MHz

• High linearity pull range (typ. 5%)

• +/- 120 PPM pullability VCXO

• Low input frequency eliminates the need for expensive

crystals

• Differential output levels (PECL, LVDS), or single-

ended CMOS

• Single 2.5V or 3.3V +/- 10% power supply

• Optional industrial temperature range (-40°C to +85°C)

and 3x3 QFN

Figure 1: 2x AFM Phase Noise at 311.04MHz