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LA1824 데이터시트(PDF) 2 Page - Sanyo Semicon Device |
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LA1824 데이터시트(HTML) 2 Page - Sanyo Semicon Device |
2 / 10 page LA1824 No.6855-2/10 Operating Characteristics at Ta = 25 °C, VCC = 4.5 V, in the specified test using the IC179-2 socket (Yamaichi Electric Co.,Ltd.) FM front-end characteristics at fc = 98 MHz, fm = 1 kHz, 22.5 kHz dev Ratings Parameter Symbol Conditions min typ max Unit Local oscillator voltage VOSC No input, fosc = 108.7 MHz, the pin 20 output 15 30 60 mVrms with FET buffer gain ·=· --10 dB Input limiting voltage 3 dB L.S. Referenced to VIN = 60 dBµV EMF, -- 13 -- dB µV EMF 22.5 kHz dev, a 3 dB down input Quieting sensitivity Q.S. 30 dB quieting sensitivity -- 12 -- dB µV EMF FM IF characteristics (monaural) at fc = 10.7 MHz, fm = 1 kHz, 75 kHz dev Ratings Parameter Symbol Conditions min typ max Unit Quiescent current ICC(FM) No input 7.0 13.7 20 mA Demodulation output VO VIN = 100 dBµV, the pin 16 output 130 190 260 mVrms Signal-to-noise ratio S/N VIN = 100 dBµV, the pin 16 output 62 70 -- dB Total harmonic distortion (mono) THD VIN = 100 dBµV, the pin 16 output -- 0.4 1.2 % Input limiting voltage 3 dB L.S. Referenced to VIN = 100 dBµV, 21 32 42 dB µV 75 kHz dev, a 3 dB down input Station detector sensitivity SD-ON No mod, an input level great enough to turn -- 33 -- dB µV on the station detector FM IF characteristics (stereo) at fc = 10.7 MHz, fm = 1 kHz, L + R = 90 %, Pilot = 10 % Ratings Parameter Symbol Conditions min typ max Unit Separation SEP VIN = 100 dBµV, L modulation, the pin 25 40 -- dB 16 output/the pin 17 output Stereo on level ST-ON VIN = 100 dBµV, the pilot modulation 1.5 3.5 6.3 % search that V8 < 0.5 V Total harmonic distortion (main) THD VIN = 100 dBµV, Main modulation, the pin -- 0.5 1.2 % 16 output AM characteristics at fc = 1000 kHz, fm = 1 kHz, 30 % modulation Ratings Parameter Symbol Conditions min typ max Unit Quiescent current ICC(AM) No input 5.0 8.5 15 mA Detector output VO(1) VIN = 23 dBµV, the pin 16 output 18 40 70 mVrms VO(2) VIN = 80 dBµV, the pin 16 output 50 85 130 mVrms Signal-to-noise ratio S/N(1) VIN = 23 dBµV, the pin 16 output 15 20 -- dB S/N(2) VIN = 80 dBµV, the pin 16 output 47 53 -- dB Total harmonic distortion THD(1) VIN = 80 dBµV, the pin 16 output -- 0.5 1.3 % THD(2) VIN = 107 dBµV, the pin 16 output -- 0.5 1.5 % Station detector sensitivity SD-ON No mod, an input level great enough to turn -- 26 -- dB µV on the station detector |
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