Peregrine’s PE97632 is a radiation tolerant, high
performance fractional-N PLL capable of frequency
synthesis up to 3.5 GHz. The device is designed for
commercial space use and optimized for superior phase
noise performance while providing an order of magnitude
reduction in current consumption, when compared with
existing commercial space PLLs.
The PE97632 features a ÷10/11 dual modulus prescaler,
counters, a delta sigma modulator and a phase comparator
as shown in Figure 1. Counter values are programmable
through a serial or direct hardwired mode.
The PE97632 is manufactured on Peregrine’s UltraCMOS®
process, a patented variation of silicon-on-insulator (SOI)
technology on a sapphire substrate, offering excellent RF
performance and intrinsic radiation tolerance.
Radiation Tolerant UltraCMOS® Delta-
Sigma Modulated Fractional-N
Frequency Synthesizer for Low Phase
3.5 GHz operation
÷10/11 dual modulus prescaler
Phase detector output
Serial or direct hardwired mode
Frequency selectivity: comparison
frequency / 218
Low power: 40 mA a@ 3.3V
Phase noise figure of merit: -216 dBc/Hz
100 kRad (Si) total dose
Pin compatible with the PE9763
(reference application note AN24 at
Figure 1. Block Diagram
Document No. DOC-29214-7A2 │ www.teledyne-e2v.com
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