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TDA7409 数据表(PDF) 4 Page - STMicroelectronics |
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TDA7409 数据表(HTML) 4 Page - STMicroelectronics |
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4 / 25 page ![]() TDA7409 4/25 ELECTRICAL CHARACTERISTICS (VS =9V; TAMB=25 ;RL=10kΩ; all gains = 0dB; f = 1kHz; unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit INPUT SELECTOR Rin Input Resistance all single ended Inputs 70 100 130 k Ω VCL Clipping Level 2.20 2.60 VRMS SIN Input Separation 80 100 dB GIN MIN Min. Input Gain -1 0 1 dB GIN MAX Max. Input Gain 18 20 22 dB GSTEP Step Resolution 0.5 1 1.5 dB VDC DC Steps Adjacent Gain Steps -5 1 5 mV GMIN to GMAX -10 5 10 mV Voffset Remaining offset with AutoZero 0.5 mV BEEP CONTROL VRMS Beep Level 250 350 500 mV fB Beep Frequency fB1 740 781 820 Hz fB2 1.48 1.56 1.64 kHz fB3 1.7 1.8 1.9 kHz MIXING CONTROL MLEVEL Mixing Level Main / Mix-Source 0/00 dB Main / Mix-Source -0.5/- 10.6 -3.5/- 9.6 -2.5/- 8.6 dB Main / Mix-Source -5/-5 -6/-6 -7/-7 dB Main / Mix-Source -11/- 1.5 -12/- 2.5 -13/- 3.5 dB VOLUME CONTROL GMAX Max. Gain 28 30 32 dB AMAX Max. Attenuation -83 -79 -75 dB ASTEP Step Resolution 0.5 1 1.5 dB EA Attenuation Set Error G = -20 to +20dB -1 0 1 dB G = -80 to -20dB -4 0 3 dB ET Tracking Error 2dB |
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