Texas Instruments PCM5122 Evaluation Module PCM5122EVM-U PCM5122EVM-U Datenbogen
Produktcode
PCM5122EVM-U
3.3V
GPIO
Soft mute
SPI DOUT
+
3.3V
3.3V
S
P
I
GPIO
GPIO
GPIO
Pull up to 3.3V
Chip select for SPI
GPIO
R1
R2
C1
C2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
DVDD
DGND
LDOO
XSMT
MISO
LRCK
DIN
BCK
SCK
GPIO6
MS
MODE1
GPIO2
GPIO3
CPVDD
CAPP
CPGND
CAPM
VNEG
OUTL
OUTR
AVDD
AGND
VCOM
MOSI
MC
GPIO5
GPIO4
0.1 F
0.1 F
C1 , C 2 = 2.2nF
0.1 F
2.2 F
2.2 F
0.1 F
10 F
P
C
M
A
u
d
io
S
o
u
rc
e
R1, R2, = 470
3.3V
GPIO
Soft mute
SPI DOUT
+
3.3V
3.3V
S
P
I
GPIO
GPIO
GPIO
Pull up to 3.3V
Chip select for SPI
GPIO
R1
R2
C1
C2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
DVDD
DGND
LDOO
XSMT
MISO
LRCK
DIN
BCK
SCK
GPIO6
MS
MODE1
GPIO2
GPIO3
CPVDD
CAPP
CPGND
CAPM
VNEG
OUTL
OUTR
AVDD
AGND
VCOM
MOSI
MC
GPIO5
GPIO4
0.1 F
0.1 F
C1 , C 2 = 2.2nF
0.1 F
2.2 F
2.2 F
0.1 F
10 F
P
C
M
A
u
d
io
S
o
u
rc
e
R1, R2, = 470
+
10 F
P
C
M
A
u
d
io
S
o
u
rc
e
3.3V
2V
rms
/1V
rms
level select
Soft mute
Format select
+
0.1 F
3.3V
3.3V
G
a
in
A
tte
n
u
a
tio
n
I
2
S Master/Slave
Filter select
De-emphasis
R1
R2
C1
C2
R1, R2, = 470
C1 , C 2 = 2.2nF
C1 , C 2 = 2.2nF
2.2 F
2.2 F
0.1 F
0.1 F
0.1 F
10 F
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CPVDD
CAPP
CPGND
CAPM
VNEG
OUTL
OUTR
AVDD
AGND
DEMP
ATT2
ATT1
ATT0
MAST
DVDD
DGND
LDOO
XSMT
FMT
LRCK
DIN
BCK
SCK
FLT
MODE2
MODE1
GPO
AGNS
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Low-level output
P
C
M
A
u
d
io
S
o
u
rc
e
1.8V
Soft mute
Format select
+
3.3V
3.3V
G
a
in
A
tte
n
u
a
tio
n
Filter select
Digital audio
data out
R1
R2
C1
C2
C1 , C 2 = 2.2nF
0.1 F
2V
rms
/1V
rms
level select
I
2
S Master/Slave
De-emphasis
R1, R2, = 470
0.1 F
10 F
0.1 F
2.2 F
2.2 F
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CPVDD
CAPP
CPGND
CAPM
VNEG
OUTL
OUTR
AVDD
AGND
DEMP
ATT2
ATT1
ATT0
MAST
DVDD
DGND
LDOO
XSMT
FMT
LRCK
DIN
BCK
SCK
FLT
MODE2
MODE1
GPO
AGNS
28
27
26
25
24
23
22
21
20
19
18
17
16
15
SLAS759A – AUGUST 2012 – REVISED SEPTEMBER 2012
APPLICATION INFORMATION
Typical Application Circuits
The PCM514x devices can be operated in a variety of configurations to support a wide range of applications.
through
show different combinations of power supplies, control methods, and VCOM/VREF
usage.
Figure 12. Hardwired Control Mode, DVDD=3.3V
Figure 13. Hardwired Control Mode, DVDD=1.8V
Figure 14. SPI Control, VREF Mode, DVDD=3.3V
Figure 15. SPI Control, VCOM Mode, DVDD=3.3V
16
Copyright © 2012, Texas Instruments Incorporated
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