la1837m Sanyo Semiconductor Corporation, la1837m Datasheet
la1837m
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la1837m Summary of contents
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... Ordering number : EN8271 LA1837M Overview The LA1837M is a single-chip AM/FM tuner IC that provides AM and FM IF and multiplex decoding circuits for electronic tuning and was developed for use in home stereo systems. It provides both SD and IF counting techniques for optimal implementation of automatic station selection. Features • ...
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... Oscillator buffer output V OSC-AM IF counter buffer output V IFBuff- output V STIF-AM S-meter output V SM-AM LA1837M Conditions Conditions No input 100dBµ, 100% mod, pin 16 output 100dBµ, 100% mod, pin 16 output / pin 17 output 100dBµ, 100% mod, pin 16 output 100dBµ, 200% mod, pin 16 output 100dBµ ...
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... Package Dimensions unit : mm 3073C Block Diagram LA1837M No.8271-3/9 ...
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... ST-LED output detector V CC LA1837M • IFT YD-1073-1 (Mitsumi Electric Co., Ltd.) Equivalent circuit Input impedance 330 Ω Connect the mixer coil between this pin and Also used for the multiplex regulator filter See pin 1 Input impedance kΩ ...
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... FM 2.8V (FM) demodulated 2.8V (AM) output LA1837M Equivalent circuit Recommended narrow band ceramic filter BFU450C4N (Murata Mfg. Co., Ltd.) When the narrow band SD function is not used, bypass this circuit by connecting a 50Ω resistor and a 0.047µF capacitor in series 8kΩ The AM SD sensitivity can be adjusted with an external resistor between this pin and ground. V13 ≤ ...
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... Oscillator buffer 1.6V (FM) output 1.3V (AM) sensitivity adjustment LA1837M Equivalent circuit Output impedance 3.3kΩ The AM frequency characteristics can be adjusted with an RC circuit connected between pin 22 and ground. Internal load resistance R = 11kΩ The FM SD bandwidth can be adjusted with an external resistor connected between this pin and pin 28. ...
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... LA1837M No.8271-7/9 ...
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... LA1837M No.8271-8/9 ...
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... SANYO Semiconductor believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of October, 2005. Specifications and information herein are subject to change without notice. LA1837M PS No.8271-9/9 ...