PLL FREQUENCY SHNTHESIZER FOR PAGER S5T8808 INTRODUCTION S5T8808 is a superior low-power-programmable PLL frequency synthesizer which can be used in a high performance Wide Area Pager system.
KS8808 consists of 2 kinds of divider block including a 17-bit Shift register, 16-bit Latch, 14/16-bits Counter, Prescaler, and a phase detector block including a Phase detector, Lock detector and a Charge pump.
16−SSOP−0044 FEATURES • Maximum operating frequency: 150MHz @ 500mVP-P, VDD1 = 0.
95V 180MHz @ 500mVP-P, VDD1 = 1.
0V (Magnification = 1 : 4) • • On-chip reference oscillator supports external crystal which oscillates up to 18MHz Superior supply current: (VDD1 = VDD2 = 1.
0V, VDD3 = 3.
0V) — ...

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