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LA1845N Datenblatt(PDF) 2 Page - Sanyo Semicon Device |
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LA1845N Datenblatt(HTML) 2 Page - Sanyo Semicon Device |
2 / 9 page LA1845N No.7185-2/9 Operating Conditions at Ta = 25 °C Parameter Symbol Conditions Ratings Unit Recommended supply voltage VCC 8V Operating supply voltage range VCC op Ta = 80 °C 4.3 to 8.5 V Electrical Characteristics at Ta = 25°C, VCC = 8V, in the specified test circuit. Ratings Parameter Symbol Conditions min typ max Unit FM mono characteristics fc = 10.7MHz, Vi = 100dB μ, fm = 1kHz, Modulation = 75kHz Current drain ICCO-FM With no input signal 20 30 40 mA Demodulator output VOFM 100dB μ, 100% modulation, fm = 1kHz 230 360 460 mVrms Total harmonic distortion THDFM 100dB μ, 100% modulation, fm = 1kHz 0.35 1.5 % Signal-to-noise ratio S/NFM 100dB μ, 100% modulation, fm = 1kHz 73 80 dB AM rejection ratio AMR 100dB μ, AM 30% modulation, fm = 1kHz 47 65 dB 3dB sensitivity 100dB μ, 100% modulation, fm = 1kHz Output reference, -3dB input 32 40 dB μ SD sensitivity 0% modulation 38 47 56 dB μ IF counter buffer output VIFBuff-FM 100dB μ 200 275 400 mVrms Mute attenuation Mute-Att 100dB μ, 100% modulation, fm = 1kHz 76 dB FM stereo characteristics fc = 10.7MHz, Vi = 100dB μ, fm = 1kHz, L + R = 90%, pilot = 10% Separation SepL L + R = 90%, Pilot = 10%, fm = 1kHz 30 42 dB Stereo on level STON Pilot input 1.5 3.5 5.5 % Total harmonic distortion THD-main Pilot input 0.45 1.5 % Brej-3rd fs = 113kHz, Vs = 90%, Pilot = 10% : The left - right modulation, demodulated output 36 dB Adjacent channel rejection ratio Brej-5th fs = 189kHz, Vs = 90%, Pilot = 10% : The left - right modulation, demodulated output 41 dB Carrier leak L + R = 90%, pilot = 10% reference, pilot = 10% output 38 44 dB AM characteristics fc = 1000kHz, Vi = 80dB μ, fm = 1kHz, Modulation = 30% Current drain ICCO-AM With no input signal 13 27 39 mA VOAM1 23dB μ, 30% modulation, fm = 1kHz 40 80 160 mVrms Detector output VOAM2 80dB μ, 30% modulation, fm = 1kHz 90 160 230 mVrms S/NAM1 23dB μ, 30% modulation, fm = 1kHz 17 23 dB Signal-to-noise ratio S/NAM2 80dB μ, 30% modulation, fm = 1kHz 46 52 dB THDAM1 80dB μ, 30% modulation, fm = 1kHz 0.4 1.1 % Total harmonic distortion THDAM2 107dB μ, 30% modulation, fm = 1kHz 0.5 1.3 % SD sensitivity 0% modulation 11 20 29 dB μ Local oscillator buffer output VOSC-AM With no input signal 100 140 200 mVrms IF counter buffer output VIFBuff-AM 23dB μ 140 285 400 mVrms |
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