參數(shù)資料
型號(hào): PCM1754DBQR
英文描述: 24-BIT, 192 kHz SAMPLING ENHANCED MULTI-LEVEL, DELTA-SIGMA, AUDIO DIGITAL-TO-ANALOG CONVERTER
中文描述: 24位192千赫采樣增強(qiáng)的多級(jí)Δ-Σ,音頻數(shù)字模擬轉(zhuǎn)換器
文件頁(yè)數(shù): 19/33頁(yè)
文件大小: 309K
代理商: PCM1754DBQR
PCM1753
PCM1754
PCM1755
SLES092A – OCTOBER 2003 – REVISED AUGUST 2004
www.ti.com
19
MODE CONTROL REGISTERS (PCM1753/55)
User-Programmable Mode Controls
The PCM1753/55 includes a number of user programmable functions, which are accessed via control registers.
The registers are programmed using the serial control interface, which was previously discussed in this data
sheet. Table 5 lists the available mode control functions, along with their reset default conditions and associated
register index.
Register Map
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 5. User-Programmable Mode Controls
FUNCTION
RESET DEFAULT
REGISTER
BIT(s)
Digital attenuation control, 0 dB to –63 dB in 0.5-dB steps
0 dB, no attenuation
16 and 17
AT1[7:0], AT2[7:0]
Soft mute control
Mute disabled
18
MUT[2:0]
Oversampling rate control (64 f
S
or 128 f
S
)
Soft reset control
64 f
S
oversampling
Reset disabled
18
OVER
18
SRST
DAC operation control
DAC1 and DAC2 enabled
19
DAC[2:1]
De-emphasis function control
De-emphasis disabled
19
DM12
De-emphasis sample rate selection
44.1 kHz
19
DMF[1:0]
Audio data format control
24-bit left-justified
20
FMT[2:0]
Digital filter rolloff control
Sharp rolloff
20
FLT
Zero flag function select
L-, R-channel independent
22
AZRO
Output phase select
Normal phase
22
DREV
Zero flag polarity select
High
22
ZREV
Table 6. Mode Control Register Map
IDX
(B8–B14)
REGISTER
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
10h
Register 16
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
AT17
AT16
AT15
AT14
AT13
AT12
AT11
AT10
11h
Register 17
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
AT27
AT26
AT25
AT24
AT23
AT22
AT21
AT20
12h
Register 18
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
SRST
OVER
RSV
RSV
RSV
RSV
MUT2
MUT1
13h
Register 19
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
DMF1
DMF0
DM12
RSV
RSV
DAC2
DAC1
14h
Register 20
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
RSV
FLT
RSV
RSV
FMT2
FMT1
FMT0
16h
Register 22
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
RSV
RSV
RSV
RSV
AZRO
ZREV
DREV
NOTE
:
RSV: Reserved for test operation. It should be set to 0 for regular operation.
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