PCM1741/E2K BURR-BROWN [Burr-Brown Corporation], PCM1741/E2K Datasheet - Page 11

• Manufacturer Part Number: PCM1741/E2K
• Description: +3.3V Single-Supply, 24-Bit, 96kHz Sampling Enhanced Multilevel, Delta-Sigma, Audio DIGITAL-TO-ANALOG CONVERTER
• Manufacturer: BURR-BROWN [Burr-Brown Corporation]

PCM1741
MODE CONTROL REGISTERS
User-Programmable Mode Controls
The PCM1741 includes a number of user-programmable
functions that are accessed via control registers. The regis-
ters are programmed using the Serial Control Interface that
was previously discussed in the “Serial Control Interface”
FIGURE 7. Control Interface Timing.
TABLE III. Mode Control Register Map.
TABLE II. User-Programmable Mode Controls.
(B8-B14) REGISTER
FUNCTION
Digital Attenuation Control, 0dB to –63dB in 0.5dB Steps
Soft Mute Control
Oversampling Rate Control (64 or 128f
DAC Operation Control
De-Emphasis Function Control
De-Emphasis Sample Rate Selection
Audio Data Format Control
Digital Filter Roll-Off Control
Zero Flag Function Select
Output Phase Select
Zero Flag Polarity Select
NOTE: (1) RSV = Reserved for test operation. It should be set to “0” when in regular operation.
SBAS175
IDX
10
11
12
13
14
15
16
H
H
H
H
H
H
H
MC
MD
ML
16
17
18
19
20
21
22
B15
0
0
0
0
0
0
0
t
MLS
NOTES: (1) MC rising edge for LSB to ML rising edge. (2)
SYMBOL
t
t
t
t
t
t
t
t
MCY
MCL
MCH
MHH
MLS
MLH
MDH
MDS
IDX6
IDX6
IDX6
IDX6
IDX6
IDX6
IDX6
B14
S
IDX5
IDX5
IDX5
IDX5
IDX5
IDX5
IDX5
B13
)
t
MCH
t
MDS
ML Falling Edge to MC Rising Edge
t
IDX4
IDX4
IDX4
IDX4
IDX4
IDX4
IDX4
MCY
B12
t
MCL
MC Pulse Cycle Time
MC High Level Time
MC Low Level Time
ML High Level Time
IDX3
IDX3
IDX3
IDX3
IDX3
IDX3
IDX3
B11
MD Set Up Time
ML Hold Time
MD Hold Time
PARAMETER
IDX2
IDX2
IDX2
IDX2
IDX2
IDX2
IDX2
B10
t
MCH
L-/R-Channel Independent
DAC1 and DAC2 Enabled
De-Emphasis Disabled
(1)
0dB, No Attenuation
24-Bit Left Justified
64f
IDX1
IDX1
IDX1
IDX1
IDX1
IDX1
IDX1
RESET DEFAULT
B9
Mute Disabled
Sharp Roll-Off
Normal Phase
S
Oversampling
44.1kHz
section of this data sheet. Table II 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 III. Each
register includes an index (or address) indicated by the
IDX[6:0] bits.
High
IDX0
IDX0
IDX0
IDX0
IDX0
IDX0
IDX0
B8
256 f
RSV
RSV
RSV
RSV
RSV
Note (2)
AT17
AT27
B7
3
MIN
100
50
50
20
20
15
20
(1)
(1)
(1)
(1)
(1)
S
sec (min), f
OVER RSV
RSV
RSV
RSV
DMF1 DMF0
AT16
AT26
B6
LSB
(1)
(1)
(1)
TYP
t
CONTROL REGISTER
MLH
RSV
RSV
AT15
AT25
FLT
S
B5
= Sampling Rate.
16 and 17
(1)
(1)
(1)
MAX
18
18
19
19
19
20
20
22
22
22
RSV
RSV
RSV
RSV
DM12 RSV
AT14
AT24
B4
t
MHH
(1)
(1)
(1)
(1)
RSV
RSV
RSV
RSV
AT13
AT23
UNITS
B3
(1)
(1)
(1)
(1)
(1)
ns
ns
ns
ns
ns
ns
ns
ns
RSV
RSV
RSV
AZRO
FMT2
AT12
AT22
AT1[7:0], AT2[7:0]
B2
INDEX, IDX[6:0]
(1)
(1)
(1)
50% of V
50% of V
50% of V
MUT[2:0]
DAC[2:1]
DMF[1:0]
FMT[2:0]
OVER
AZRO
DREV
DM12
ZREV
RSV
FLT
MUT2
DAC2
FMT1
ZREV
AT11
AT21
B1
(1)
DD
DD
DD
RSV
MUT1
DAC1
DREV
FMT0
AT10
AT20
B0
11
(1)