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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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LM4935 데이터시트(PDF) 41 Page - National Semiconductor (TI) |
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LM4935 데이터시트(HTML) 41 Page - National Semiconductor (TI) |
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41 / 112 page  12.0 Status & Control Registers (Continued) 12.20 AUX_LEFT CONFIGURATION REGISTER This register is used to control the left aux analog input. TABLE 21. AUX_LEFT (0x0Fh) Bits Field Description 4:0 AUX_ LEFT_ LEVEL Programs the gain/attenuation applied to the AUX LEFT analog input to the mixer. (Note 21) AUX_LEFT_LEVEL Level (With Boost) Level (Without Boost) 00000 2 −34.5 dB −46.5 dB 00001 2 −33 dB −45 dB 00010 2 −31.5 dB −43.5 dB 00011 2 −30 dB −42 dB 00100 to 11100 2 −28.5 dB to +7.5 dB −40.5 dB to −4.5 dB 11101 2 +9 dB −3 dB 11110 2 +10.5 dB −1.5 dB 11111 2 +12 dB 0 dB 5 AUX_ LEFT_ BOOST If set the gain of the AUX_LEFT input to the mixer is increased by 12 dB (see above). 6 AUX_L_MUTE If set the AUX LEFT input is muted. 7 AUX_OR_DAC_L If set the AUX LEFT input is passed to the mixer, the default is for the DAC LEFT output to be passed to the mixer. Note 21: The recommended mixer level is 1V RMS. The auxiliary analog inputs can be boosted by 12 dB if enough headroom is available. Clipping may occur if the analog power supply is insufficient to cater for the required gain. www.national.com 41 |
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