PE97632

www.DataSheet4U.com Advance Information PE97632 Product Description Peregrine’s PE97632 is a high performance fractional-N PLL capable of frequency synthesis up to 3.2 GHz. The device is designed for superior phase noise performance while providing an order of magnitude reduction in current consumption, when compared with the 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 either a serial interface or directly hard-wired. The PE97632 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 PE97632 offers excellent RF performance and intrinsic radiation tolerance. 3.2 GHz Delta-Sigma modulated Fractional-N Frequency Synthesizer for Low Phase Noise Applications Features 3.2 GHz operation ÷10/11 dual modulus prescaler Phase detector output Serial or Direct mode access Frequency selectivity: Comparison frequency / 218 Low power — 50 mA at 3.3 V Rad-Hard Ultra-low phase noise 68-lead CQFJ Figure 1. Block Diagram Fin Fin M8:0 A3:0 R5:0 Pre_en Sdata Primary 21-bit Latch Prescaler 10/11 Main Counter 13 20 Secondary 20-bit Latch Auxiliary 20-bit Latch + 13 20 18 DSM 19 4 6 6 PD_U Phase Detector PD_D fr 18 K17:...