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TDA7718B 数据表(PDF) 35 Page - STMicroelectronics |
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TDA7718B 数据表(HTML) 35 Page - STMicroelectronics |
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35 / 40 page ![]() DocID18305 Rev 3 35/40 TDA7718B I2C bus specification Table 16. Bass filter (11) MSB LSB Function D7 D6 D5 D4 D3 D2 D1 D0 -- - 0 0 : 0 0 1 1 : 1 1 0 0 : 1 1 1 1 : 0 0 0 0 : 1 1 1 1 : 0 0 0 0 : 1 1 1 1 : 0 0 0 1 : 0 1 1 0 : 1 0 Gain/attenuation -15 dB -14 dB : -1 dB 0dB 0dB +1 dB : +14 dB +15 dB - 0 0 1 1 0 1 0 1 - - --- Bass Q factor 1.0 1.25 1.5 2.0 0 1 - - - - --- Soft-step action Act Wait Table 17. Subwoofer / middle / bass (12) MSB LSB Function D7 D6 D5 D4 D3 D2 D1 D0 -- - - - - 0 0 1 1 0 1 0 1 Subwoofer cut-off frequency 55 Hz 85 Hz 120 Hz 160 Hz -- - - -0 1 -- Subwoofer output phase 180 deg 0 deg -- - 0 0 1 1 0 1 0 1 -- - Middle center frequency 500 Hz 1000 Hz 1500 Hz 2500 Hz - 0 0 1 1 0 1 0 1 -- - - - Bass center frequency 60 Hz 80 Hz 100 Hz 200 Hz 0 1 -- - - - - - Bass DC mode On Off |
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