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AN7259 Datasheet - Panasonic Semiconductor

AN7259_PanasonicSemiconductor.pdf

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Datasheet Details

Part number:

AN7259

Manufacturer:

Panasonic Semiconductor

File Size:

72.84 KB

Description:

Fm-if amplifier.

AN7259, FM-IF Amplifier

* Control Signal Output Block 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.

The adjustable range at R4= 0.8kΩ ~ 10kΩ is more than 30dB in con

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 fr

AN7259 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

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