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Product Description
Peregrine’s PE9704 is a high-performance integer-N PLL
capable of frequency synthesis up to 3.0 GHz. The
device is designed for superior phase noise performance
while providing an order of magnitude reduction in
current consumption, when compared with existing
commercial space PLLs.
The PE9704 features a ÷10/11 dual modulus prescaler,
counters, and a phase comparator as shown in Figure 1.
Counter values are programmable through a serial
interface, and can also be directly hard wired.
The PE9704 is optimized for commercial space
applications. Single Event Latch-up (SEL) is physically
impossible and Single Event Upset (SEU) is better than
10-9 errors per bit / day. Fabricated in Peregrine’s
patented UTSi® (Ultra Thin Silicon) CMOS technology,
the PE9704 offers excellent RF performance and intrinsic
radiation tolerance.
ADVANCE INFORMATION
PE9704
3.0 GHz Integer-N PLL for Rad
Hard Applications
Features
• 3.0 GHz operation
• ÷10/11 dual modulus prescaler
• Phase detector output
• Serial interface or hardwired
programmable
• Ultra-low phase noise
• SEU < 10-9 errors / bit-day
• 100 Krad (Si) total dose
• 44-lead CQFJ
Figure 1. Block Diagram
FIN
Prescaler
10 / 11
MSEL
Serial
Control 3
Direct
Control
M(8:0)
A(3:0)
R(5:0)
20-Bit
Frequency
Register
20
19*
FR
* prescaler bypass not available in Direct mode
Main
Counter
13
66
R Counter
PEREGRINE SEMICONDUCTOR CORP. | http://www.peregrine-semi.com
fp Phase
fc Detector
PD_U
PD_D
LD
C ext
Copyright Peregrine Semiconductor Corp. 2003
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