• Part: U4311B
  • Description: Low-Current Superhet Remote Control Receiver
  • Manufacturer: Atmel
  • Size: 120.38 KB
U4311B Datasheet (PDF) Download
Atmel
U4311B

Overview

The U4311B is a monolithic integrated circuit in bipolar technology for low-current UHF remote control superheterodyne receivers in amplitude- or frequencymodulated mode. Typical applications are keyless car lock-, alarm- or tele-control remote indication systems.

  • Usable for amplitude- and frequency-modulated transmission systems
  • Extremely low quiescent current (approximately 1 mA in standby mode due to wake-up concept)
  • Wide power supply voltage range 3 to 13 V
  • Sensitive IF amplifier for 10.7-MHz operating frequency
  • Logarithmic AM demodulator
  • FM demodulator
  • Monoflop exit to wake up a microcontroller
  • High-performance operational amplifier to realize a data recovering filter
  • Non-inverting clamping comparator with amplitudedepending hysteresis for data regeneration