參數(shù)資料
型號： LM4935
廠商： National Semiconductor Corporation
元件分類： ADC
英文描述： Audio Sub-System with Dual-Mode Stereo Headphone and Mono High Efficiency Loudspeaker Amplifiers and Multi-Purpose ADC
中文描述： 音頻子系統(tǒng)的雙模單聲道立體聲耳機和揚聲器放大器的高效率和多功能模數(shù)轉(zhuǎn)換器
文件頁數(shù)： 41/112頁
文件大?。?/td> 5017K
代理商： LM4935
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
4:0
Field
AUX_
LEFT_
LEVEL
Description
Programs the gain/attenuation applied to the AUX LEFT analog input to the mixer. (Note 21)
AUX_LEFT_LEVEL
Level (With Boost)
00000
2
34.5 dB
00001
2
00010
2
31.5 dB
00011
2
00100 to 11100
2
28.5 dB to +7.5 dB
11101
2
11110
2
+10.5 dB
11111
2
If set the gain of the AUX_LEFT input to the mixer is increased by 12 dB (see above).
Level (Without Boost)
46.5 dB
45 dB
43.5 dB
42 dB
40.5 dB to 4.5 dB
3 dB
1.5 dB
0 dB
33 dB
30 dB
+9 dB
+12 dB
5
AUX_
LEFT_
BOOST
AUX_L_MUTE
AUX_OR_DAC_L
6
7
If set the AUX LEFT input is muted.
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.
L
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