參數(shù)資料
型號: TAS3004PFBR
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝: GREEN, PLASTIC, TQFP-48
文件頁數(shù): 27/84頁
文件大?。?/td> 671K
代理商: TAS3004PFBR
4–4
4.8
Analog Control Register Operation
The analog control register (ACR) allows control of de-emphasis, selection of the analog input channel to the ADC,
and analog power down.
An I2C master is required to write the appropriate command into the ACR. The ACR subaddress is 0x40.
Bit
7
6
5
4
3
2
1
0
Type
R/W
Default
0
Table 4–1. Analog Control Register Description
BIT
FIELD NAME
TYPE
DESCRIPTION
7
ADM
R/W
ADC output mode.
0 = Normal operation
1 = A inputs are normal; B inputs are monaural.
6
LRB
R/W
Selects left or right B input for monaural output.
0 = B left input selected for monaural ADC output when bit 7 (ADM) is set to 1
.
1 = B right input selected for monaural ADC output when bit 7 (ADM) is set to 1.
5–4
RSVD
R/W
Reserved. Bits 5 and 4 return 0s when read.
3–2
DM(1–0)
R/W
De-emphasis control.
00 = De-emphasis off (initial condition after reset)
01 = 48 kHz sample rate de-emphasis selected
10 = 44.1 kHz sample rate de-emphasis selected
11 = Reserved
1
INP
R/W
Analog input select.
0 = LINA and RINA selected (initial condition after reset)
1 = LINB and RINB selected
0
APD
R/W
Analog powerdown.
0 = Normal operation (initial condition after reset)
1 = Powerdown
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