OVERVIEW

The SM5166AV is a PLL synthesizer IC developed for application in pagers and fabricated using NPC’s Molybdenum-gate CMOS process. It incorporates independently-controlled reference frequency and operating 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

■ Operating frequency

   • fFIN = 100 MHz (VDD1 = 1.00 V)

   • fFIN = 90 MHz (VDD1 = 0.95 V)

■ Reference frequency

   • fXIN = 25 MHz

      (VDD1 = 0.95 V, External Input)

   • fXIN = 16 MHz*

      (VDD1 = 0.95 V, Internal oscillaton)

   NOTE) * : NPC’s recommended frequency. Confirm with crystal supplier.

■ Unlock signal output pin

■ Output circuit for passive filter connection

■ −10 to 60 °C operating temperature range

■ Standby function for low current consumption

■ Boost-up signal output for fast locking

■ Supply voltages

   • VDD1 = 0.95 to 1.5 V (prescaler, counters)

   • VDD2 = 2.0 to 3.3 V (charge pump)

■ 40 to 65528 reference frequency divider ratio range (with 1/8 prescaler built-in) set by serial input data

■ 1056 to 65535 operating frequency divider ratio range set by serial input data

■ 16-pin VSOP

■ Molybdenum-gate CMOS process