3236-00 查看數據表（PDF） - Peregrine Semiconductor
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3236-00 Datasheet PDF : 16 Pages
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Product Description
Peregrine’s PE3236 is a high performance integer-N PLL
capable of frequency synthesis up to 2.2 GHz. The
superior phase noise performance of the PE3236 is ideal
for applications such as LMDS / MMDS / WLL
basestations and demanding terrestrial systems.
The PE3236 features a 10/11 dual modulus prescaler,
counters and a phase comparator as shown in Figure 1.
Counter values are programmable through either a serial
or parallel interface and can also be directly hard wired.
This programming flexibility, combined with the dual latch
architecture enabling ping-pong loading of the main
divide counter, makes these PLLs well suited as the core
for fractional-N or sigma-delta implementation.
The PE3236 is optimized for terrestrial applications.
Fabricated in Peregrine’s patented UTSi® (Ultra Thin
Silicon) CMOS technology, the PE3236 offers excellent
RF performance with the economy and integration of
conventional CMOS.
PRODUCT SPECIFICATION
PE3236
2.2 GHz Integer-N PLL for Low
Phase Noise Applications
Features
• 2.2 GHz operation
• ÷10/11 dual modulus prescaler
• Internal phase detector
• Serial, parallel or hardwired
programmable
• Low power 22 mA at 3 V
• Q3236 PLL replacement
• Ultra-low phase noise
Figure 1. Block Diagram
Fin
Prescaler
Fin
10 / 11
D(7:0)
8
Sdata
Primary
20-bit
Latch 20
Secon-
dary
20
20-bit
20
Pre_en
Latch 20
16
M(6:0)
A(3:0)
R(3:0)
fr
Main
Counter
13
66
R Counter
fp
Phase
Detector
PD_U
PD_D
fc
PEREGRINE SEMICONDUCTOR CORP. | http://www.peregrine-semi.com
Copyright Peregrine Semiconductor Corp. 2003
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