PE3236 Datasheet, PDF (1/15 Pages) Peregrine Semiconductor Corp. – 2200 MHz UltraCMOS-TM Integer-N PLL for Low Phase Noise Applications

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. It 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.
Figure 1. Block Diagram
Product Specification
PE3236
2200 MHz UltraCMOS™ 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
• Available in 44-lead PLCC package
F_in
Prescaler
F_in
10 / 11
D(7:0)
8
Sdata
Primary
20-bit
Latch ²⁰
Secon-
dary
20-bit
20
20
Pre_en
Latch ²⁰
16
M(6:0)
A(3:0)
R(3:0)
f_r
Main
Counter
13
66
R Counter
f_p
Phase
Detector
PD_U
PD_D
f_c
Document No. 70-0026-03 │ www.psemi.com
©2003-2005 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 15