PE3236 Datasheet | pSemi

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 parator 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, bined 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 Ultra CMOS™ process, a patented variation of silicon-on-insulator (SOI) technology on a sapphire substrate, offering the performance of Ga As with the economy and integration of conventional CMOS. Product Specification 2200 MHz Ultra CMOS™ 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 m A 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 16 Main Counter 13 66 R Counter fp Phase Detector PD_U PD_D...