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参数资料
| 型号： | LC708728V |
| 元件分类： | DAC |
| 英文描述： | SERIAL INPUT LOADING, 24-BIT DAC, PDSO20 |
| 封装： | MO-150AE, SSOP-20 |
| 文件页数： | 15/31页 |
| 文件大小： | 332K |
| 代理商： | LC708728V |
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Mute Mode (Software Mute)
The software muting function is controlled by setting the MUT register.
No. 7236-22/31
LC708728V
Register address
Bit
Symbol
Default value
Description
0010
0
MUT
0
Soft muting selection
D/A converter control
0: Normal operation
1: Soft muting enabled (both left and right channels)
Table 10 Software Mute Control
De-Emphasis Mode
The deemphasis function is controlled by setting the DEEMPH register.
Register address
Bit
Symbol
Default value
Description
0010
1
DEEMPH
0
Deemphasis mode selection
D/A converter control
0: Deemphasis off
1: Deemphasis on
Table 11 Deemphasis Setting
Power Down Mode
The power down mode is controlled by setting the PWDN register. In power down mode, the left and right channel D/A
converter outputs are set to the VMID level and the IC internal operations transits to a power down operating mode. Note
that when the IC switches to power down mode, all previously input audio data and control register values are cleared.
When returning to normal operation from power down mode, the first 16 samples of the audio data input after returning
to normal mode are ignored to initialize the internal FIR filters.
Register address
Bit
Symbol
Default value
Description
0010
2
PWDN
0
Power down mode selection
D/A converter control
0: Normal operation
1: Power down mode
Table 12 Power Down Mode Control
Digital Audio Interface Control Register
The LC708728V features a digital audio interface that is an expanded version of the digital audio interface provided by
the Wolfson Microelectronics WM8716. The digital audio input format is set using the IWL[2:0] bits in the M2 register
and the I2S bit in the M3 register.
Register address
Bit
Symbol
Default value
Description
0010
5:3
IWL
000000
Input data format selection
D/A converter control
[2:0]
0011
0
I2S0
Input data format selection
Interface control
Table 13 Digital Audio Input Data Format Selection
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