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參數(shù)資料
| 型號： | LM4935WLX |
| 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(jī)和揚(yáng)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)： | 47/112頁 |
| 文件大?。?/td> | 5017K |
| 代理商： | LM4935WLX |
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12.0 Status & Control Registers
(Continued)
12.26 HP_OUTPUT CONFIGURATION REGISTER
This register is used to control the stereo headphone output. (Note 27)
TABLE 27. HP_OUTPUT (0x15h)
Bits
0
1
Field
Description
SIDETONE_SELECT
CPI_SELECT
If set the sidetone channel of the mixer is added to both of the headphone output signals.
If set the cell phone input channel of the mixer is added to both of the headphone output
signals.
If set the right channel of the mixer is added to the headphone output. If the STEREO bit
(0x00h) is set, the right channel is added to the right headphone output signal only. If the
STEREO bit (0x00h) is cleared, it is added to both the right and left headphone output
signals.
If set the left channel of the mixer is added to the headphone output. If the STEREO bit
(0x00h) is set, the left channel is added to the left headphone output signal only. If the
STEREO bit (0x00h) is cleared, it is added to both the right and left headphone output
signals.
If set the headphone output is muted.
2
RIGHT_SELECT
3
LEFT_SELECT
4
HP_MUTE
Note 27:
The gain of the headphone output amplifier is –6 dB for the cell phone input channel and sidetone channel of the mixer. When the STEREO bit (0x00h)
is set, headphone output amplifier gain is –6 dB for the left and right channel. When the STEREO bit (0x00h) is cleared, the headphone output amplifier gain is –12
dB for the left and right channel (to allow enough headroom for adding them and routing them to both headphone amplifiers).
L
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