Preliminary Specification
PE33241
Product Description
Peregrine’s PE33241 is a high-performance Integer-N
PLL capable of frequency synthesis up to 5 GHz. The
device is designed for superior phase noise performance
with a direct or serial programming option.
The PE33241 features a selectable prescaler modulus of
5/6 or 10/11, counters and a phase comparator as
shown in
Figure 1.
Counter values are programmable
through either a serial interface or directly hard-wired.
The PE33241 is available in a 48-lead 7x7 mm QFN and
is manufactured on Peregrine’s UltraCMOS
®
process, a
patented variation of silicon-on-insulator (SOI)
technology on a sapphire substrate, offering excellent
RF performance.
UltraCMOS
®
Integer-N PLL Frequency
Synthesizer for Low Phase Noise
Applications
Features
Frequency range
5 GHz in 10/11 prescaler modulus
4 GHz in 5/6 prescaler modulus
Phase noise floor figure of merit:
-230 dBc/Hz
Selectable prescaler modulus of 5/6 or
10/11
Applications
Industrial applications
Military applications
Point-to-point radios
Cellular base stations
CATV equipment
Low power: 80 mA at 2.8V
Serial or direct mode access
Internal phase detector
Packaged in a 48-lead 7x7 mm QFN
Figure 1. Functional Diagram
F
REF
F
c
RF
OUT
Reference
Divider
Phase
Detector
VCO
Serial
Control
Direct
Control
F
p
Control
Logic
Main
Counter
Loop Filter
Prescaler
5/6 or
10/11
PE33241
F
IN
Document No. DOC-15014-3
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