2200MHz UltraCMOS Integer-N PLL
Product Description
Peregrine’s PE3236 is a high performance integer-N PLL capable of frequency synthesis up to 2.2 GHz....
Description
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.
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
Obsolete
Figure 1. Block Diagram
Fin Prescaler Fin 10 / 11
D(7:0) 8
Sdata
Primary 20-bit Latch 20
Pre_en
M(6:0) A(3:0) R(3:0)
fr
Secondary 20-bit Latch
20 20
20...
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