Document No. 70-0205-07 │ www.psemi.com

©2006-2011 Peregrine Semiconductor Corp. All rights reserved.

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Peregrine’s PE97632 is a high performance fractional-N PLL

capable of frequency synthesis up to 3.5 GHz. The device is

designed for superior phase noise performance while providing

an order of magnitude reduction in current consumption, when

compared with existing commercial space PLLs.

The PE97632 features a ÷10/11 dual modulus prescaler,

counters, a delta sigma modulator, and a phase comparator as

shown in Figure 1. Counter values are programmable through

a serial or direct hardwired mode.

The PE97632 is optimized for commercial space applications.

Single Event Latch up (SEL) is physically impossible and

Fabricated in Peregrine’s patented UltraCMOS™ technology,

the PE97632 offers excellent RF performance and intrinsic

radiation tolerance.

Product Specification

3.5 GHz Delta-Sigma modulated

Fractional-N Frequency Synthesizer

for Low Phase Noise Applications

Product Description

Figure 1. Block Diagram

PE97632

Features



3.5 GHz operation



÷10/11 dual modulus prescaler



Phase detector output



Serial or direct hardwired mode



Frequency selectivity: Comparison



Low power - 40 mA at 3.3 V



Rad-Hard



Ultra-low phase noise



68-lead CQFJ



Pin compatible with the PE9763

(reference application note AN24 at

www.psemi.com)