器件名称: 3239-11
功能描述: 2.2 GHz Integer-N PLL for Low Phase Noise Applications
文件大小: 214.91KB 共12页
简 介:Product Specification
PE3239
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. 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 Fin
Prescaler 10/11
Main Counter 13
Sdata
Primary 20-bit 20 Latch
Secondary 20-bit Latch
20 20
Phase Detector
PD_U PD_D
Charge Pump
CP
6 fr
6
R Counter
Document No. 70-0047-02 │ www.psemi.com
2006 Peregrine Semiconductor Corp. All rights reserved. Page 1 of 12
PE3239
Product Specification
Figure 2. Pin Configuration (Top View)
VDD Enh S_WR Sdata Sclk GND FSELS E_WR VDD
1 2 3 4 5 6 7 8 9 20 19 18 17 16 15 14 13 12 11
Figure 3. Package T……
