AN7273 Panasonic, AN7273 Datasheet
AN7273
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AN7273 Summary of contents
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... ICs for FM/AM Tuner AN7273, AN7273S AM Tuner, FM/AM IF Amplifier Circuit Overview The AN7273 and the AN7273S are the ICs designed for Hi-Fi stereo tuner. They are functioned with stop signal pin besides the AN7223S function. Features • Level meter output (FM–AM common use) • ...
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... AN7273, AN7273S Pin Descriptions Pin No. Pin Name Input 2 AM Supply/Mute Adjustment Input 4 AM Mixer Output 5 AGC Output (2) 6 AGC Output ( Input 8 IF By-pass 9 IF By-pass Absolute Maximum Ratings (Ta=25˚C) Parameter Supply Voltage Supply Current AN7273 Power Dissipation AN7273S AN7273 Operating Ambient Temperature ...
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... CC 14 140 12 120 10 100 (lim 10.7MHz 0 = 400Hz, 22.5kHz ( Mute ON –10 –20 –30 –40 –50 –60 –70 80 100 120 –300 –200 –100 ( AN7273, AN7273S V – 1 (AM 1MHz i 1 400Hz, 30% m (FM 10.7MHz 400Hz, 22.5kHz 0.8 6 0.6 4 0 120 Input Voltage V ...
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... AN7273, AN7273S Application Circuit D : MA27W 1 From FM Front End. 330 Printed Circuit Board Layout AM ANT SW FM 2.2k AM Mute 0.022 + – 0.022 F – 470 V 2 0.0047 F 0.022 – – – AN7273 – – 0.022 10k 3 1 Mute ON OFF FM IF Input C1 CF1 T3 ANT OSC ...
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... Connection Diagram Number of Turns Tuning Cap – Matsushita 2 – – – Matsushita 2 – 3 125T 2 4 – – 2 35T Matsushita 2 6 – 4 10T 2 – 1 19T 1 6 Maker Center Freq. Toko 455kHz AN7273, AN7273S Unloaded Q 90 20% 100pF — 95 20% 1500pF 60 30% Band Width Loss 7kHz (–6dB) 2.6dB ...