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TDA7406 데이터시트(PDF) 48 Page - STMicroelectronics |
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TDA7406 데이터시트(HTML) 48 Page - STMicroelectronics |
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48 / 64 page ![]() I2C bus interface TDA7406 48/64 Note: It is not recommended to use a gain more than 20dB for system performance reason. In general, the max. gain should be limited by software to the maximum value, which is needed for the system. Table 11. Volume (2) MSB LSB ATTENUATION D7 D6 D5 D4 D3 D2 D1 D0 0 0 : 0 0 0 : 0 0 0 : 1 1 0 0 : 0 0 0 : 0 1 1 : 1 1 0 0 : 0 0 0 : 1 0 0 : 0 0 0 0 : 1 1 1 : 1 0 0 : 1 1 0 0 : 1 1 1 : 1 0 0 : 1 1 0 0 : 0 0 0 : 1 0 0 : 1 1 0 0 : 0 0 1 : 1 0 0 : 1 1 0 1 : 0 1 0 : 1 0 1 : 0 1 Gain/Attenuation (+32.0dB) (+31.5dB) : +20.0dB +19.5dB +19.0dB : +0.5dB 0.0dB -0.5dB : -79.0dB -79.5dB Table 12. Equalizer (3,4,5,6,7,8,9) 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 Equalizer cut/boost level -15dB -14dB : -1dB 0dB 0dB +1dB : +14dB +15dB 0 0 1 1 0 1 0 1 Equalizer Q-Factor 2.2 1.8 1.4 1.0 0 1 Equalizer Center Frequency (only Subaddresses 3,8,9) 62Hz(addr 3)/4kHz(addr 8)/15kHz(addr 9) 100Hz(addr 3)/6.24kHz(addr 8)/16kHz(addr 9) 0 1 DC mode EQ Band 1 (62/100 Hz, Subaddress. 4!) on off |
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