參數(shù)資料
型號: DSD1702E
英文描述: ENHANCED MULTIFORMAT, DELTA-SIGMA, AUDIO DIGITAL-TO-ANALOG CONVERTER
中文描述: 增強的多格式,Δ-Σ,音頻數(shù)字模擬轉換器
文件頁數(shù): 16/28頁
文件大?。?/td> 417K
代理商: DSD1702E
DSD1702
SLES005A
JUNE 2001
REVISED FEBRUARY 2002
16
www.ti.com
register definitions (continued)
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 19
R/W
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
DMF1
DMF0
DEM
RSV
RSV
DAC2
DAC1
DACx DAC Operation Control
:PCM/DSD Mode
Where x = 1 or 2, corresponding to the DAC output V
OUT
L (x = 1) or V
OUT
R (x = 2).
Default value: 0
DACx = 0
DACx = 0
DAC operation enabled (default)
DAC operation disabled
The DAC operation controls are used to enable and disable the DAC outputs, V
OUT
L and V
OUT
R. When
DACx = 0, the corresponding output will generate the audio waveform dictated by the data present on the DATA
pin. When DACx = 1, the corresponding output will be set to the bipolar zero level, or V
CC
/2.
DME De-emphasis Function Control
:PCM Mode
Default value: 0
DME = 0
DME = 1
De-emphasis disabled (default)
De-emphasis enabled
The DME bit is used to enable or disable the digital de-emphasis function. Refer to the plots shown in the Typical
Characteristics section of this data sheet.
DMF[1:0] Sampling Frequency Select for the De-emphasis Function
:PCM Mode
Default value: 00
The DMF[1:0] bits are used to select the sampling frequency used for the digital de-emphasis function when
it is enabled.
DMF[1:0]
00
01
10
11
De-emphasis Sample Rate Select
44.1 kHz (default)
48 kHz
32 kHz
Reserved
RSV Reserved Bit
The RSV should be set to 0.
IDX[6:0] Register Index
Register 19: 10011
B
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