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: 221.28KB 共13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. Fabricated in Peregrine’s patented UTSi (Ultra Thin Silicon) CMOS technology, the PE3239 offers excellent RF performance with the economy and integration of conventional CMOS.
2.2 GHz Integer-N PLL for Low Phase Noise Applications
Features 2.2 GHz operation 10/11 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 Primary 20-bit 20 Latch
Sdata
Secondary 20-bit Latch
20 20
Phase Detector
PD_U PD_D
Charge Pump
CP
6 fr
6
R Counter
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Copyright Peregrine Semiconductor Corp. 2001
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PE3239
Product Specification
Figure 2. Pin Configuration
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
fr GND N/C CP VDD Dout LD Cext GND Fin
Fin 10
Table 1. Pin Descriptions
Pin No.
1 2 3 4 5 6 7 8 9 10 ……
