PCM1738E2K BURR-BROWN [Burr-Brown Corporation], PCM1738E2K Datasheet - Page 26

• Manufacturer Part Number: PCM1738E2K
• Description: 24-Bit, 192kHz Sampling, Advanced Segment, Audio-Stereo DIGITAL-TO-ANALOG CONVERTER
• Manufacturer: BURR-BROWN [Burr-Brown Corporation]

26
APPLICATION FOR DSD FORMAT (DSD MODE) INTERFACE
FIGURE 11. Connection Diagram for DSD Format Interface.
FEATURES
This mode is utilized for interfacing directly to a DSD
decoder, found in Super Audio CD (SACD) applications.
DSD Mode provides a low-pass filtering function to convert
the 1-bit oversampled data stream to the analog domain. The
filtering is provided using an Analog FIR filter structure.
Four FIR responses are available and may be selected via the
serial control interface. Refer to the Typical Performance
Curves section of this data sheet for Analog FIR plots. See
Figures 1 and 2 for interface timing and specification, and
Figures 17 and 18 for timing and interface specification in
DSD mode.
DSD Decoder
Bit Clock (n • f
DATA-R
DATA-L
S
)
Always Set LOW
Always Set LOW
Control
Mode
10
11
12
13
14
1
2
3
4
5
6
7
8
9
RST
ZEROL
ZEROR
N/A
DATAL
N/A
BCK
DGND
V
SCKO
MDO
MDI
MC
CS
DD
PIN ASSIGNMENT WHEN IN DSD
FORMAT INTERFACE
Several pins are redefined for DSD Mode operation. These
include:
• DATA (Pin 5)
• MUTE (Pin 15)
• SCKI (Pin 7)
• LRCK (Pin 4)
• BCK (Pin 6)
Typical connection to a DSD decoder is shown in Figure 11.
AGND2
AGND1
DATAR
I
I
I
I
V
V
V
OUT
OUT
OUT
OUT
V
V
V
COM
COM
COM
I
CC
CC
CC
REF
R+
R–
L+
Bit Clock (BCK) for DSD Data (64 x 44.1kHz)
L–
3
2
1
3
2
1
Set LOW
Set LOW
28
27
26
25
24
23
22
21
20
19
18
17
16
15
DATAL, L-Channel DSD Data Input
DATAR, R-Channel DSD Data Input
Same as Standard
Output Stage
Application
PCM1738
Analog
SBAS174B