参数资料
型号: PCM3052ARTFG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 编解码器
英文描述: PCM CODEC, PQCC32
封装: GREEN, PLASTIC, VQFN-32
文件页数: 31/47页
文件大小: 776K
代理商: PCM3052ARTFG4
www.ti.com
DMF[1:0]: Sampling Frequency Selection for the De-Emphasis Function (DAC)
DM12: Digital De-Emphasis Function Control (DAC)
FLT0: Digital Filter Rolloff Control (DAC)
DREV: Output Phase Select (DAC)
PCM3052A
SLES160 – NOVEMBER 2005
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
REGISTER 69
0
1
0
1
0
1
RSV
DMF1
DMF0
DM12
RSV
Default value: 01
DMF[1:0]
DE-EMPHASIS SAMPLING RATE SELECTION
0 0
44.1 kHz
0 1
48 kHz (default)
1 0
32 kHz
1 1
Reserved
The DMF[1:0] bits are used to select the sampling frequency used for the digital de-emphasis function when it is
enabled.
Default value: 0
DM12 = 0
De-emphasis disabled (default)
DM12 = 1
De-emphasis enabled
The DM12 bit is used to enable or disable the digital de-emphasis function. See the plots shown in the Typical
Performance Curves section of this data sheet.
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
REGISTER 70
0
1
0
1
0
RSV
FLT0
RSV
1
RSV
Default value: 0
FLT0 = 0
Sharp rolloff (default)
FLT0 = 1
Slow rolloff
The FLT0 bit allows the user to select the digital filter rolloff that is best suited to their application. Two filter rolloff
selections are available: Sharp and Slow. The filter responses for these selections are shown in the Typical
Performance Curves section of this data sheet.
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
REGISTER 71
0
1
0
1
RSV
DREV
Default value: 0
DREV = 0
Normal output (default)
DREV = 1
Inverted output
The DREV bit is used to control the output analog signal phase control.
37
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