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TDA1572 Scheda tecnica(PDF) 8 Page - NXP Semiconductors |
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TDA1572 Scheda tecnica(HTML) 8 Page - NXP Semiconductors |
8 / 19 page December 1987 8 Philips Semiconductors Product specification AM receiver circuit TDA1572 OPERATING CHARACTERISTICS VP = 8,5 V; fi = 1 MHz; m = 30%; fm = 400 Hz; Tamb = 25 °C; measured in Fig.1; unless otherwise specified PARAMETER SYMBOL MIN. TYP. MAX. UNIT RF sensitivity RF input required for (S +N)/N = 6 dB Vi − 1,5 −µV RF input required for (S +N)/N = 26 dB Vi − 15 −µV RF input required for (S +N)/N = 46 dB Vi − 150 −µV RF input at start of AGC Vi − 30 −µV RF large signal handling RF input at THD = 3%; m = 80% Vi − 500 − mV RF input at THD = 3%; m = 30% Vi − 700 − mV RF input at THD = 10%; m = 30% Vi − 900 − mV AGC range Change of Vi for 1 dB change of Vo(AF); Vi(ref) = 500 mV ∆Vi − 86 − dB Change of Vi for 6 dB change of Vo(AF); Vi(ref) = 500 mV ∆Vi − 91 − dB Output signal IF output voltage at Vi = 2 mV Vo(IF) 180 230 290 mV AF output voltage at Vi = 4 µV; m = 80% Vo(AF) − 130 − mV AF output voltage at Vi = 2 mV Vo(AF) 240 310 390 mV THD at Vi = 1 mV dtot − 0,5 − % THD at Vi = 500 mV dtot − 1 − % Signal plus noise-to-noise ratio at Vi = 100 mV (S +N)/N − 58 − dB Ripple rejection at Vi = 2 mV; VP(rms) = 100 mV; fp = 100 Hz (SVRR = 20 log [VP/Vo(AF)]) RR − 38 − dB a) additional AF signal at IF output RR − 0* − dB b) add modulation at IF output (mref = 30%) RR − 40 − dB |
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