3239-11 データシートの表示（PDF） - Peregrine Semiconductor

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3239-11

2.2 GHz UltraCMOS™ Integer-N PLL for Low Phase Noise Applications

Peregrine Semiconductor 

Product Description

Peregrine’s PE3239 is a high performance integer-N PLL

capable of frequency synthesis up to 2.2 GHz. The

superior phase noise performance of the PE3239 is ideal

for applications such as wireless local loop basestations,

LMDS systems and other demanding terrestrial systems.

The PE3239 features a 10/11 dual modulus prescaler,

counters, phase detector and a charge pump as shown in

Figure 1. Counter values are programmable through a

three wire serial interface.

The PE3239 is manufactured on Peregrine’s UltraCMOS™

process, a patented variation of silicon-on-insulator (SOI)

technology on a sapphire substrate, offering the

performance of GaAs with the economy and integration of

conventional CMOS.

Product Specification

PE3239

2.2 GHz UltraCMOS™ Integer-N PLL

for Low Phase Noise Applications

Features

• 2.2 GHz operation

• ÷10/11 dual modulus prescaler

• Internal phase detector with

charge pump

• Serial programmable

• Low power— 20 mA at 3 V

• Ultra-low phase noise

• Available in 20-lead TSSOP

Figure 1. Block Diagram

Fin

Prescaler

Fin

10/11

Sdata

Primary

20-bit

Latch 20

Secon-

dary

20-bit

20

Latch 20

fr

Main

Counter

13

66

R Counter

PD_U

Phase

Detector

Charge

Pump

CP

PD_D

Document No. 70-0047-02 │ www.psemi.com

©2006 Peregrine Semiconductor Corp. All rights reserved.

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