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U4311B - Low-Current Superhet Remote Control Receiver

General Description

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.

Key Features

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

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Other Datasheets by Atmel (now Microchip Technology)

Part Number Description
U4311B-FS Low-Current Superhet Remote Control Receiver

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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U4311B Low-Current Superhet Remote Control Receiver Description 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. Especially for automotive applications, it supports a superhet design with about 1 mA total current consumption as required by the car manufacturers. Features D Usable for amplitude- and frequency-modulated transmission systems D Extremely low quiescent current (approximately 1 mA in standby mode due to wake-up concept) D Wide power supply voltage range 3 to 13 V D Sensitive IF amplifier for 10.