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LA1805 Scheda tecnica(PDF) 2 Page - Sanyo Semicon Device |
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LA1805 Scheda tecnica(HTML) 2 Page - Sanyo Semicon Device |
2 / 13 page LA1805 No.2887-2/13 Operating Conditions at Ta=25°C Parameter Symbol Conditions Ratings Unit Recommended operating voltage VCC 4.5 V Operating voltage range VCC op 3.0 to 8.0 V Note : The FM output level forms an N curve (LA1805) and an S curve (LA1806). LA1805 : N curve (for US band) LA1806 : S curve (for Japanese band). Your desired output level can be set by varying the output resistance. Operating Characteristics at Ta=25°C, VCC=4.5V, See Test Circuit Parameter Symbol Conditions Ratings min typ max Unit [FM characteristics (Mono) : fc=10.7MHz, fm=1kHz] Quiescent current Icco No input 13 20 mA –3dB sensitivity –3dBL.S. Referenced to VIN=100dBµ, 28 35 dBµ 100%, down 3dB Demodulation output VO VIN=100dBµ, 100% mod. 140 205 280 mV Channel balance C.B. VIN=100dBµ, 100% mod. 0 0 1.5 dB Total harmonic distortion THD VIN=100dBµ, 100% mod. 0.45 1.2 % Signal to noise ratio S/N VIN=100dBµ, 100% mod. 70 80 dB LED ON sensitivity VLED IL=1mA 23 33 43 dBµ [FM characteristics (Stereo) : fc=10.7MHz, fm=1kHz, L+R=90%, pilot=10%, VIN=100dBµ] Separation Sep 32 48 dB Stereo distortion THD (Main) 0.45 1.2 % LED ON level VLED-on 2.4 3.9 5.4 % LED OFF level VLED-off 2.7 % [AM characteristics : fc=1000kHz, fm=1kHz] Quiescent current Icco No input 9.5 14.5 mA Demodulation output VO1 VIN=23dBµ, 30% mod. 27 50 90 mV VO2 VIN=80dBµ, 30% mod. 70 113 173 mV Signal to noise ratio S/N1 VIN=23dBµ, 30% mod. 17 21 dB S/N2 VIN=80dBµ, 30% mod. 50 55 dB Total harmonic distortion THD1 VIN=80dBµ, 30% mod. 0.45 1.2 % THD2 VIN=100dBµ, 30% mod. 0.6 1.5 % LED on sensitivity VLED IL=1mA 16 24 32 dBµ Note : Be fully careful of dielectric breakdown. Equivalent Circuit Block Diagram |
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