AS3922 Datasheet
Single Chip High Performance RF Transceiver
Download: AS3922 Datasheet 
AS3922
Single Chip High Performance RF Transceiver
AS3922 Half Duplex 868/915 MHzTranceiver
Data Sheet
Data Sheet for the AS3922 Half-Duplex 868/915 MHz Transceiver
Data Sheet Rev. A1, April 2001
Preliminary Data Sheet AS3922
AS3922 Single Chip High Performance RF Transceiver
Applications
UHF wireless data transmitters and receivers
Wireless alarm and security systems
868 and 915 MHz ISM band systems
Keyless entry with acknowledgement
Remote control systems
Home security and automation
Low power telemetry
Remote metering
Environmental control
Product
Description
As3922 Is A Single-chip High Performance Half-duplex Uhf Transceiver Designed For Low-power And
low-voltage wireless
Applications. The Circuit Is Mainly Intended For The Ism (industrial, Scientific And Medical)
Frequency Bands At 868 And 915 Mhz, But Can Easily Be Programmed For Operation At Other Frequency
Bands In The 800-1000 Mhz Range. The Main Operating Parameters Of As3922 Can Be Programmed Via A
Serial Interface, Thus Making As3922 A Very Flexible And Easy To Use Component. In A Typical System
As3922 Will Be Used Together With A Microcontroller And A Few External Passive Components.
FEATURES
Single chip RF transceiver
Frequency range 800MHz to 1000MHz
High sensitivity (typical -110 dBm)
Programmable output power up to 4 dBm
Compiles with ETS 300 220
Small size (SSOP-28 package)
Low supply voltage (2.7V to 3.3V)
Very few external components required
No external RF switch required
No external IF filter required
Single port antenna connection
FSK modulation with data-rate up to 9,6 kbits/s
Suitable for both narrow and wide band systems
Radio Frequency (rf) Programmable In Steps Of 250 Hz Makes Crystal Temperature Drift Com-
pensation possible