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S5T8809 - PLL FREQUENCY SYNTHESIZER FOR PAGER

Description

Pin No 1 2 3 4 5 6 7 8 9 Symbol OSCI OSCO VDD2 FL PDO VSS Fin VDD1 PBC Description These input / output pins generate the reference frequency.

In case of OSCI Pin, external reference frequency can be used through the AC coupling.

Features

  • Maximum operating frequency: 330MHz @ 300mVP-P, VDD1 = 1.0V, VDD2 = 3.0V On-chip reference oscillator supports external crystal which oscillates up to 23MHz Superior supply current:.
  • FFIN = 310MHz, IDD1 = 0.8mA (Typ. ) @ VDD1 = 1.0V, VDD2 = 3.0V Operating voltage: VDD1 = 0.95 to 1.5V and VDD2 = 2.0 to 3.3V Excellent Divider range:.
  • Ref. Divider: FRC (0): 1 / 40 to 1 / 65528 (Multiple): Default FRC (1): 1 / 5 to 1 / 32767.
  • Rx Divider: PBC (0.

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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 SYNTHESIZER FOR PAGER S5T8809 INTRODUCTION S5T8809 is a superior low-power-programmable PLL frequency synthesizer which can be used in high performance / Simple application for a Wide Area Pager system. S5T8809 consists of 2 kinds of divider block including a 19-bit Shift register, 16/18-bit Latch, 13/15bits R-counter and 16/18-bit NCounter, 32/33 Prescaler, and a phase detector block including a Phase detector, Lock detector and a Charge pump. S5T8809 also has a battery saving mode which can control each register block by serial control data from the µ-controller (MICOM) and it also has boost up signal output for fast locking. 16-TSSOP-0044 ( Magnification = 1 : 4 ) FEATURES • • • Maximum operating frequency: 330MHz @ 300mVP-P, VDD1 = 1.0V, VDD2 = 3.
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