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A1231N - Monolithic Linear

Features

  • High sensitivity on limiting : 18µV typ.
  • Low distortion : 0.05% typ. determined by the linearity of phase characteristics in phase shifting circuit.
  • High demodulation output : 330 mVrms typ.
  • High S/N ratio : 78.5dB typ.
  • Muting at detuning with little shock noise.
  • Single meter drive output proportional with the input signal level dB.
  • Detuning muting band having good symmetrics.
  • Tuning meter driving output having wide.

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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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Ordering number : EN660A Monolithic Linear IC LA1231N FM IF System Overview Package Dimensions Being developed for FM IF System, LA1231 is a highly unit: mm integrated circuit in which almost all functions are 3006B-DIP16 contained concerning the FM tuner IF stage. The block diagram of equivalent circuit is shown below. Usual [LA1231N] peripheral circuits are shown also in examples of application circuits. The IF amplifier and limiter stages are composed of 6- stage double-end type differential amplifier, which is superior on its AMR. The signal meter driving stage which is located in parallel therewith consists of a 3-stage level detector circuit and a drive circuit in order to extend the linear area.
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