TDA5211 Datasheet, PDF (7/52 Pages) Infineon Technologies AG – ASK/FSK Single Conversion Receiver

TDA 5211
Product Description
2.1 Overview
The IC is a very low power consumption single chip FSK/ASK Superheterodyne
Receiver (SHR) for receive frequencies between 310 and 350 MHz that is pin
compatible to the ASK Receiver TDA5201. The IC offers a high level of integra-
tion and needs only a few external components. The device contains a low
noise amplifier (LNA), a double balanced mixer, a fully integrated VCO, a PLL
synthesiser, a crystal oscillator, a limiter with RSSI generator, a PLL FSK
demodulator, a data filter, a data comparator (slicer) and a peak detector. Addi-
tionally there is a power down feature to save battery life.
2.2 Application
s Keyless Entry Systems
s Remote Control Systems
s Alarm Systems
s Low Bitrate Communication Systems
2.3 Features
s Low supply current (I_s = 5.7 mA typ.FSK mode, 5mA typ. ASK mode)
s Supply voltage range 5V ±10%
s Power down mode with very low supply current (50nA typ.)
s FSK and ASK demodulation capability
s Fully integrated VCO and PLL Synthesiser
s RF input sensitivity ASK -113dBm typ. at 25°C, better than -110dBm over
complete specified operating temperature range (-40 to +105°C)
s RF input sensitivity FSK -105dBm typ. at 25°C, better than -102dBm over
complete specified operating temperature range (-40 to +105°C)
s Receive frequency range between 310 and 350 MHz
s Selectable reference frequency
s Limiter with RSSI generation, operating at 10.7MHz
s 2nd order low pass data filter with external capacitors
s Data slicer with self-adjusting threshold
Wireless Components
2-2
Specification, May 2001