參數(shù)資料
型號(hào)： PCM1870RHFT
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)： 24/49頁(yè)
文件大?。?/td> 648K
代理商： PCM1870RHFT
www.ti.com
USER-PROGRAMMABLE MODE CONTROLS
Register Map
PCM1870
SLAS544–MAY 2007
The mode control register map is shown in
Table 6
. Each register includes an index (or address) indicated by
the IDX[6:0] bits.
Table 6. Mode Control Register Map
IDX [6:0]
(B14–B8)
REGISTER
DESCRIPTION
B7
B6
B5
B4
B3
B2
B1
B0
Register 73
49h
Analog bias power up/down
PBIS
RSV
RSV
RSV
RSV
RSV
RSV
RSV
Register 74
4Ah
V
COM
power up/down
Volume for ADC input (L-ch)
RSV
RSV
RSV
RSV
RSV
RSV
RSV
PCOM
Register 79
4Fh
RSV
RSV
ALV5
ALV4
ALV3
ALV2
ALV1
ALV0
Register 80
50h
Volume for ADC input (R-ch)
RSV
RSV
ARV5
ARV4
ARV3
ARV2
ARV1
ARV0
Register 81
51h
ADC high pass-filter, soft mute, audio interface
HPF1
HPF0
RMUL
RMUR
RSV
DSMC
RFM1
RFM0
Register 82
52h
ADC, MCB, PG1, 2, 5, 6, D2S power up/down
RSV
RSV
PAIR
PAIL
PADS
PMCB
PADR
PADL
Register 83
53h
Auto level control for recording
RALC
RSV
RRTC
RATC
RCP1
RCP0
RLV1
RLV0
Register 84
54h
Master mode
RSV
RSV
RSV
RSV
RSV
MSTR
RSV
BIT0
Register 85
55h
System reset, sampling rate control
SRST
RSV
NPR5
NPR4
NPR3
NPR2
NPR1
NPR0
Register 86
56h
BCK config, master mode, zero cross
MBST
MSR2
MSR1
MSR0
RSV
RSV
RSV
ZCRS
Register 87
57h
Analog input select (MUX1, 2, 3, 4)
AD2S
RSV
AIR1
AIR0
RSV
RSV
AIL1
AIL0
Register 90
5Ah
V
COM
power up/down, ramp up/down time, boost
Bass boost gain level (200 Hz)
RSV
RSV
RSV
RSV
RSV
RSV
G20R
G20L
Register 92
5Ch
LPAE
RSV
RSV
LGA4
LGA3
LGA2
LGA1
LGA0
Register 93
5Dh
Middle boost gain level (1 kHz)
RSV
RSV
RSV
MGA4
MGA3
MGA2
MGA1
MGA0
Register 94
5Eh
Treble boost gain level (5 kHz)
RSV
RSV
RSV
HGA4
HGA3
HGA2
HGA1
HGA0
Register 95
5Fh
Sound effect source select, 3D sound
RSV
3DEN
RSV
3FL0
3DP3
3DP2
3DP1
3DP0
Register 96
60h
2-stage notch filter, digital monaural mixing
NEN2
NEN1
NUP2
NUP1
RSV
RSV
RSV
MXEN
Register 97
61h
1st-stage notch filter lower coefficient (a1)
F107
F106
F105
F104
F103
F102
F101
F100
Register 98
62h
1st-stage notch filter upper coefficient (a1)
F115
F114
F113
F112
F111
F110
F109
F108
Register 99
63h
1st-stage notch filter lower coefficient (a2)
F207
F206
F205
F204
F203
F202
F201
F200
Register 100
64h
1st-stage notch filter upper coefficient (a2)
F215
F214
F213
F212
F211
F210
F209
F208
Register 101
65h
2nd-stage notch filter lower coefficient (a1)
S107
S106
S105
S104
S103
S102
S101
S100
Register 102
66h
2nd-stage notch filter upper coefficient (a1)
S115
S114
S113
S112
S111
S110
S109
S108
Register 103
67h
2nd-stage notch filter lower coefficient (a2)
S207
S206
S205
S204
S203
S202
S201
S200
Register 104
68h
2nd-stage notch filter upper coefficient (a2)
S215
S214
S213
S212
S211
S210
S209
S208
Register 124
7Ch
Mic boost
RSV
RSV
RSV
RSV
RSV
RSV
G12R
G12L
ADC: A/D converter
MCB: Mic bias
PGx: Analog input buffer
D2S: Differential-to-single amplifier
24
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