PE3293

•  Industry leading fractional spur compensation:  no adjusting  required, stable over temp.
• Ultra-Low Power consumption:  4.0 mA typical, both loops operating
• Modulo-32 fractional-N main counters
• Supply voltage range 2.7 to 3.3  VDC

The PE3293 is a dual fractional-N phase-lock loop (PLL) IC designed for frequency synthesis and fabricated on Peregrineís patented UTSiÆ CMOS process. Each PLL PE3293 includes a prescaler, phase detector, charge pump and
on-board fractional spur compensation.

The patented spur compensation circuitry of PE3293 designed into the device ensures superior spur performance over the full temperature and VCO tuning range.

The PE3293 provides fractional-N division with power-of- two denominator values up to 32. This allows comparison frequencies up to 32 times the channel spacing, PE3293 providing a lower phase noise floor than integer PLLs. The 32/33 RF prescaler (PLL1) operates up to 1.8 GHz and the 16/17 IF prescaler (PLL2) operates up to 550 MHz.