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S5T8808 - PLL FREQUENCY SHNTHESIZER FOR PAGER

Description

Pin No 1 2 3 4 Symbol OSCI OSCO VDD3 PDA I/O I O

O Description These input / output pins generate the reference frequency.

In case of an OSCI pin, external reference frequency can be input through an AC coupling.

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).
  • FFIN = 90MHz, IDD1 = 0.6mA (Typ. ).
  • FFIN = 150MHz, IDD1 = 0.9mA (Typ. ).
  • FFIN = 180MHz, IDD3 = 1.1mA (TyP. ).
  • Operating voltage: VDD1 = 0.95 ~.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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) — FFIN = 90MHz, IDD1 = 0.6mA (Typ.) — FFIN = 150MHz, IDD1 = 0.9mA (Typ.) — FFIN = 180MHz, IDD3 = 1.
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