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TSH511 데이터시트(PDF) 7 Page - STMicroelectronics |
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TSH511 데이터시트(HTML) 7 Page - STMicroelectronics |
7 / 18 page TSH511 7/18 ELECTRICAL CHARACTERISTICS Vcc = 2.7V, Tamb = 25°C, faudio = 1 kHz, fcarrier = 2.8 MHz, frequency deviation = +/-75 kHz (unless otherwise specified) Symbol Parameter Test condition Min Typ Max Unit Overall Circuit (refering to typical application schematic, without reject filters) ICC_OX Current consumption, RX1 is on, RX2 is on. SBY1 = ’Low’, SBY2 = X (X = don’t care) 15 18 mA ICC_10 Current consumption RX1 is on, RX2 is off RX1 audio buffer is on RX2 audio buffer is on SBY1 = ’High’, SBY2 = ’Low’ 11 13 mA ICC_11 Current consumption RX1 is on, RX2 is off RX1 audio buffer is on, RX2 audio buffer is off SBY1 = ’High’, SBY2 = ’High’ 9.5 11.5 mA MAUS Maximum Usable Average Sensitivity with audio SINAD=12 dB, audio BW=30 kHz with audio SINAD=26 dB, audio BW=30 kHz 4 19 µVRMS SNOUT Output audio signal to noise ratio Vcarrier = 1 mVRMS, with psophometric filter 58 dB Vi Input limiting voltage output S/N reduced by 3dB, in BW = 30kHz output S/N reduced by 3dB, psophometric filter 80 60 µVRMS THD Total Harmonic Distortion Vcarrier = 1 mVRMS, with psophometric filter 0.6 % Low Noise Amplifier (LNA) Section GLNA LNA voltage gain ZL= 2 k Ω, fcarrier = 10 MHz 18 22 28 dB BWLNA -3dB LNA Bandwidth ZL = 2 k Ω 20 MHz En_LNA Equivalent input noise voltage Rs = 0 Ω 3.4 nV/ √Hz In_LNA Equivalent input noise current Rs = 0 Ω 0.6 pA/ √Hz ZLNA_IN Input impedance definied as RLNA_IN in paralell with CLNA_IN RLNA_IN CLNA_IN 30 2 k Ω pF ZLNA_OUT Output impedance 200 Ω P1dB_LNA 1dB compression point ZL= 2 k Ω ZL= 2 k Ω, f carrier=10 MHz 127 95 mVRMS IIP3LNA Input 3rd order interception point ZL= 2 k Ω ZL= 2 k Ω, f carrier=10 MHz 30 22 mVRMS |
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