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U4065B - FM Receiver IC

General Description

The IC U4065B is a bipolar integrated FM front-end circuit.

It contains a mixer, an oscillator, two IF preamplifiers and an unique interference sensor.

The device is designed for high-performance car radio and home receiver applications.

AUDR

Figure 1.

Key Features

  • On-chip Control Functions are Available for System Gain Adjust (dB Linear versus DC Current).
  • Low Noise LO Design.
  • ESD Protected Benefits.
  • All Front-end Functions of a High-performance FM Receiver Except the RF Preamplifier are Integrated FM Receiver IC U4065B.
  • Improved Dynamic Range by High Current Double-balanced Mixer Design and a New AGC Conception with 3 Loops On-chip.
  • Improved Blocking and Intermod Behavior Due to a Unique “Interf.

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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.

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Features • On-chip Control Functions are Available for System Gain Adjust (dB Linear versus DC Current) • Low Noise LO Design • ESD Protected Benefits • All Front-end Functions of a High-performance FM Receiver Except the RF Preamplifier are Integrated FM Receiver IC U4065B • Improved Dynamic Range by High Current Double-balanced Mixer Design and a New AGC Conception with 3 Loops On-chip • Improved Blocking and Intermod Behavior Due to a Unique “Interference” Sensor Controlling the AGC • Easy Cascading of 3 IF Filters (Ceramic) Enabled by Two On-chip IF Preamplifiers Description The IC U4065B is a bipolar integrated FM front-end circuit. It contains a mixer, an oscillator, two IF preamplifiers and an unique interference sensor.