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TDA7402 Arkusz danych(PDF) 9 Page - STMicroelectronics |
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TDA7402 Arkusz danych(HTML) 9 Page - STMicroelectronics |
9 / 71 page TDA7402 Electrical specifications 9/71 2 Electrical specifications VS = 9V; Tamb = 25°C; RL = 10kΩ; all gains = 0dB; f = 1kHz; unless otherwise specified Table 2. Electrical characteristics Symbol Parameter Test condition Min. Typ. Max. Unit Input selector Rin Input resistance all single ended Inputs 70 100 130 k Ω VCL Clipping level 2.2 2.6 VRMS SIN Input separation 80 100 dB GIN MIN Min. input gain -1 0 +1 dB GIN MAX Max. input gain 13 15 17 dB GSTEP Step resolution 0.5 1 1.5 dB VDC DC steps Adjacent gain steps -5 1 5 mV GMIN to GMAX -10 6 10 mV Voffset Remaining offset with autozero 0.5 mV Differential stereo inputs Rin Input resistance (see Figure 3) Differential 70 100 130 k Ω GCD Gain only at true differential input -1 0 1 dB -5 -6 7 dB -11 -12 -13 dB CMRR Common mode rejection ratio VCM = 1VRMS @ 1kHz 46 70 dB VCM = 1VRMS @ 10kHz 46 60 dB eNO Output-noise @ speaker outputs 20Hz - 20kHz, flat; all stages 0dB 9 15 µV Differential mono inputs Rin Input impedance Differential 40 56 72 k Ω CMRR Common mode rejection ratio VCM = 1VRMS @ 1kHz 40 70 dB VCM = 1VRMS @ 10kHz 40 60 dB Beep control VRMS Beep level Mix-gain = 6dB 250 350 500 mV fBeep Beep frequency fBeep1 570 600 630 Hz fBeep2 740 780 820 Hz fBeep1 1.48 1.56 1.64 kHz fBeep1 2.28 2.4 2.52 kHz |
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