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AS3902 - ISM 433 MHz ASK Transmitter

General Description

The AS3902 is a single channel low power 433 MHz ASK transmitter.

It uses a fully integrated PLL stabilized RF-oscillator which avoids frequency pulling by approaching the antenna with objects as it occurs at SAW resonator based transmitters.

Key Features

  • Supports the European 433 MHz ISM band.
  • No frequency pulling by (antenna) load variation due to PLL synthesizer.
  • Designed to be conform to EN 300 220-1 requirements.
  • ASK data rate range from 0 to 32 kbit/s.
  • Supports clock and reset signals for the external µC. Therefore no separate µC XTAL is required.
  • Supports total shut down mode without any running XTAL oscillator.
  • Typically 2 external resistors and 3 capacitors required.

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Datasheet Details

Part number AS3902
Manufacturer austriamicrosystems AG
File Size 348.59 KB
Description ISM 433 MHz ASK Transmitter
Datasheet download datasheet AS3902 Datasheet

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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.

View original datasheet text
AS3902 ISM 433 MHz ASK Transmitter Preliminary Data Sheet Rev. A7, December 2000 ISM 433 MHz ASK Transmitter – Preliminary Data Sheet AS3902 Key Features • Supports the European 433 MHz ISM band. • No frequency pulling by (antenna) load variation due to PLL synthesizer. • Designed to be conform to EN 300 220-1 requirements. • ASK data rate range from 0 to 32 kbit/s. • Supports clock and reset signals for the external µC. Therefore no separate µC XTAL is required. • Supports total shut down mode without any running XTAL oscillator. • Typically 2 external resistors and 3 capacitors required. • FSK operation by XTAL pulling possible. • 315 MHz US ISM band application possible. • Wide supply range between 2.7 V to 5 V.