SBAS052 Datasheet, PDF (13/17 Pages) Texas Instruments – Stereo Audio DIGITAL-TO-ANALOG CONVERTER MPEG2/AC-3 COMPATIBLE

Not Recommended For New Designs
AC-3 APPLICATION
Figure 13 shows the typical circuit diagram for Dolby AC-3, 5.1 channel system.
AC-3
Audio
Decoder
SCKO
LRCKO
SERO_0
SERO_1
SERO_2
SYSCKI
STRB
µP SCKO
SDO
Three-wire I/F
(Serial I/O) 3
Master Clock
Generator
or
PLL
Reset
10µF
+
20
DGND
15
BCKIN
14
LRCIN
16
DIN
2
SCKI
19
V_DD
12
V_OUTL
13 ^200Ω
CAP
PCM1720
9
V_OUTR
4
ML
5
MC
6
MD
8
ZERO
7
RSTB
AGND
V_CC
10
11
3.3µF
+
10µF
+
20
19
DGND
15
BCKIN
14
LRCIN
16
DIN
V_DD
12
V_OUTL
13 ^200Ω
CAP
2
SCKI
PCM1720
9
V_OUTR
4
ML
5
MC
6
MD
8
ZERO
7
RSTB
AGND
V_CC
10
11
3.3µF
+
10µF
+
23 22 21 3
PGND DGND V_DD V_DP
17
BCKIN
14
V_OUTL
16
LRCIN
18
DIN
15 ^200Ω
CAP
2 SCKO
4
SCKI ^PCM1721
1
MCKI
11
V_OUTR
6
ML
7
MC
10
ZERO
8
MD
9
RSTB
19
AGND
V_CC
12
13
3.3µF
+
Post
Low Pass
Filter
+
10µF
Post
Low Pass
Filter
+5V Analog
Post
Low Pass
Filter
+
10µF
Post
Low Pass
Filter
+5V Analog
Post
Low Pass
Filter
+
10µF
Post
Low Pass
Filter
+5V Analog
+5V Analog
Analog
Mute
Analog Out
Analog
Mute
Analog Out
Mute
Control
+5V Analog
Analog
Mute
Analog Out
Analog
Mute
Analog Out
Mute
Control
+5V Analog
Analog
Mute
Analog Out
Analog
Mute
Analog Out
Mute
Control
FIGURE 13. Connection Diagram for a 6-Channel AC-3 Application.
13
®
PCM1720