Datasheet

PCM1753
PCM1754
PCM1755
SLES092C – OCTOBER 2003 – REVISED FEBRUARY 2009
www.ti.com
25
APPLICATION INFORMATION
CONNECTION DIAGRAMS
A basic connection diagram is shown in Figure 28, with the necessary power supply bypassing and decoupling
components. TI recommends using the component values shown in Figure 28 for all designs.
The use of series resistors (22 Ω to 100 Ω) is recommended for the SCK, LRCK, BCK, and DATA inputs. The
series resistor combines with the stray PCB and device input capacitance to form a low-pass filter, which
reduces high-frequency noise emissions and helps to dampen glitches and ringing present on clock and data
lines.
BCK
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
DATA
LRCK
DGND
NC
V
CC
V
OUT
L
V
OUT
R
SCK
AGND
ML
MC
MD
ZEROL/NA
V
COM
ZEROR/ZEROA
10 μF
Register Control
Post LPF
10 μF
PCM1753
PCM1755
+5 V
+
L-Ch Out
PCM Audio Data
+
Post LPF
R-Ch Out
System Clock
Zero Mute Control
BCK
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
DATA
LRCK
DGND
NC
V
CC
V
OUT
L
V
OUT
R
SCK
AGND
FMT
MUTE
DEMP
TEST
V
COM
ZEROA
10 μF
Post LPF
10 μF
PCM1754
+5 V
+
L-Ch Out
PCM Audio Data
+
Post LPF
R-Ch Out
System Clock
Zero Mute Control
Format
MUTE On/Off
DEMP On/Off
+ +
10 mF
10 mF
+ +
10 mF
10 mF
Figure 28. Basic Connection Diagram