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7403 bảng dữ liệu(PDF) 4 Page - STMicroelectronics |
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7403 bảng dữ liệu(HTML) 4 Page - STMicroelectronics |
4 / 26 page AUDIO PROCESSOR PART Input Multiplexer MPX input Cassette stereo input AM mono or stereo input Internal beep with 2 frequencies (selectable) Mixable phone and beep signals Loudness First or second order frequency response Programmable center frequency and quality factor 15 x 1dB steps Selectable flat-mode (constant attenuation) Volume control 1dB attenuator Max. gain 20dB Max. attenuation 79dB Soft-step gain control Bass Control 2nd order frequency response Center frequency programmable in 4(5) steps DC gain programmable 7 x 2dB steps Treble Control 2nd order frequency response Center frequency programmable in 4 steps 7 x 2dB steps Speaker Control 4 independent speaker controls (1dB steps control range 50dB) Mute Functions Direct mute driven by pin SM Digitally controlled softmute with 4 program- mable time constants ELECTRICAL CHARACTERISTICS (VS = 9V; Tamb =25 °C; RL = 10KΩ; all gains = 0dB; f = 1KHz; unless otherwise specified). Symbol Parameter Test Condition Min. Typ. Max. Unit INPUT SELECTOR Rin Input Resistance all inputs except Phone 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 14 dB GSTEP Step Resolution 2 dB VDC DC Steps Adjacent Gain Step 0 mV GMIN to GMAX 1mV BEEP CONTROL VRMS Beep Level 350 mV fBMIN Lower Beep Frequency 600 Hz fBMAX Higher Beep Frequency 1.2 KHz MIXING CONTROL MLEVEL Mixing Level Source 0 dB Source -6 dB Source -12 dB Beep/Phone 0 dB TDA7403 4/26 |
Số phần tương tự - 7403 |
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Mô tả tương tự - 7403 |
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