參數(shù)資料
型號(hào): PCM1870RHFR
英文描述: 16-Bit Low-Power Stereo Audio ADC With Microphone Bias and Microphone Amplifier
中文描述: 16位低功耗立體聲音頻ADC,具有麥克風(fēng)偏置和麥克風(fēng)放大器
文件頁(yè)數(shù): 41/49頁(yè)
文件大?。?/td> 648K
代理商: PCM1870RHFR
www.ti.com
PCM1870
SLAS544–MAY 2007
Registers 97–100
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 97
Register 98
Register 99
Register 100
0
0
0
0
IDX6
IDX6
IDX6
IDX6
IDX5
IDX5
IDX5
IDX5
IDX4
IDX4
IDX4
IDX4
IDX3
IDX3
IDX3
IDX3
IDX2
IDX2
IDX2
IDX2
IDX1
IDX1
IDX1
IDX1
IDX0
IDX0
IDX0
IDX0
F107
F115
F207
F215
F106
F114
F206
F214
F105
F113
F205
F213
F104
F112
F204
F212
F103
F111
F203
F211
F102
F110
F202
F210
F101
F109
F201
F209
F100
F108
F200
F208
IDX[6:0]:
110 0001b (61h) Register 97
IDX[6:0]:
110 0010b (62h) Register 98
IDX[6:0]:
110 0011b (63h) Register 99
IDX[6:0]:
110 0100b (64h) Register 100
F[107:100]: Lower 8 Bits of Coefficient a
1
for First-Stage Notch Filter
F[115:108]: Upper 8 Bits of Coefficient a
1
for First-Stage Notch Filter
F[207:200]: Lower 8 Bits of Coefficient a
2
for First-Stage Notch Filter
F[215:208]: Upper 8 Bits of Coefficient a
2
for First-Stage Notch Filter
Default value: 0000 0000
These bits are used to change the characteristics of the first-stage notch filter. See
Calculating Filter Coefficients
for details.
Register 101–104
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 101
Register 102
Register 103
Register 104
0
0
0
0
IDX6
IDX6
IDX6
IDX6
IDX5
IDX5
IDX5
IDX5
IDX4
IDX4
IDX4
IDX4
IDX3
IDX3
IDX3
IDX3
IDX2
IDX2
IDX2
IDX2
IDX1
IDX1
IDX1
IDX1
IDX0
IDX0
IDX0
IDX0
S107
S115
S207
S215
S106
S114
S206
S214
S105
S113
S205
S213
S104
S112
S204
S212
S103
S111
S203
S211
S102
S110
S202
S210
S101
S109
S201
S209
S100
S108
S200
S208
IDX[6:0]:
110 0101b (65h) Register 101
IDX[6:0]:
110 0110b (66h) Register 102
IDX[6:0]:
110 0111b (67h) Register 103
IDX[6:0]:
110 1000b (68h) Register 104
S[107:100]: Lower 8 Bits of Coefficient a
1
for Second-Stage Notch Filter
S[115:108]: Upper 8 Bts of Coefficient a
1
for Second-Stage Notch Filter
S[207:200]: Lower 8 Bits of Coefficient a
2
for Second-Stage Notch Filter
S[215:208]: Upper 8 Bits of Coefficient a
2
for Second-Stage Notch Filter
Default value: 0000 0000
These bits are used to change the characteristics of the second-stage notch filter. See
Calculating Filter
Coefficients
for details.
41
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