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AN7259S - FM-IF Amplifier

General Description

The AN7259S has linear level meter output (control voltage on Pin2) whose dynamic range is about 60dB wider for change of the input.

This control voltage is adjustable by the resistor R4 of Pin1.

Key Features

  • Quadrature detection system and fewer external parts.
  • Good linearity of control voltage output used for AGC 0.4±0.25 0.3 5.4±0.3 7.7±0.3 20-Lead SOP Package (SOP020-P-0300A) s Block Diagram 20 19 18 17 16 15 14 13 12 11 FM IF Amp. Counter SSC FM Det. VCONT. Search Mute Amp. 1 2 3 4 5 6 7 8 GND 9 10 VCC 0.15 0.65 12.6±0.3 AN7259S s Absolute Maximum Ratings (Ta=25˚C) Parameter Supply Voltage Supply Current Power Dissipation (Ta = 75˚C) Operating Ambient T.

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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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ICs for FM/AM Tuner AN7259S FM-IF Amplifier Circuit for Car Radio s Overview The AN7259S is an FM–IF/DET IC for car radio/car stereo and has each function necessary for electronictuner. 0.4 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 1.5±0.2 Unit : mm and separation control, etc. IF counter output and search output in channel selection signal as electronic tuning and with IF counter output ON/OFF circuit (SSC) • Adjustment of search band width and search output center frequency • Soft muting adjusting function • 0.1±0.1 1.27 s Features • Quadrature detection system and fewer external parts • Good linearity of control voltage output used for AGC 0.4±0.25 0.3 5.4±0.3 7.7±0.3 20-Lead SOP Package (SOP020-P-0300A) s Block Diagram 20 19 18 17 16 15 14 13 12 11 FM IF Amp.