OVERVIEW
The SM5170AV is a PLL synthesizer IC developed for application in pagers. It incorporates independently-controlled reference frequency and FIN input frequency dividers, and operates from a low-voltage supply to realize low power dissipation. It features a charge pump that operates at 3 V, making possible a wide range of VCO designs.

FEATURES
■ Supply voltages
    • VDD1 = 0.95 to 1.2 V (prescaler, counters)
    • VDD2 = 2.0 to 3.3 V (charge pump)
■ FIN input frequency
    • fFIN = 300 MHz (VDD1 = 0.95 V)
    • fFIN = 330 MHz (VDD1 = 1.0 V)
■ Reference frequency
    • fXIN = 25 MHz (VDD1 = 0.95 V)
■ 20 to 262140 reference frequency divider ratio range (with 1/4 prescaler built-in)
■ 1056 to 131071 FIN input frequency divider ratio range
■ −10 to 60 °C operating temperature range
■ 16-pin VSOP