Texas Instruments ADCx120Q1EVM-PDK, User Manual, Page: 24 / 30

7.2 AC-MB Schematic and Bill of Materials
This section provides the schematics and BOM for the AC-MB.
7.2.1 AC-MB Schematic
Figure 7-2 shows the schematics
X-SCL
X-SDA
X-SDA
X-SCL
S/PDIF-OUT
9211-BCLK
9211-FSYNC
9211-DOUT
1
ERROR/INT0
2
NPCM/INT1
3
MPIO_A0
4
MPIO_A1
5
MPIO_A2
6
MPIO_A3
7
MPIO_C0
8
MPIO_C1
9
MPIO_C2
10
MPIO_C3
11
MPIO_B0
12
MPIO_B1
13
MPIO_B2
14
MPIO_B3
MPO0
15
MPO1
16
DOUT
17
18
FSYNC
BCK
19
20
SCKO
21
DGND
22
DVDD
23
MDO/ADR0
24
MDI/SDA
25
MC/SCL
26
MS/ADR1
27
MODE
28
RXIN7/ADIN0
29
RXIN6/AFSYNCI0
30
RXIN5/ABCKI0
31
RXIN4/ASCKI0
32
RXIN3
33
RXIN2
RST
34
35
RXIN1
36
VDDRX
37
RXIN0
38
GNDRX
XTI
39
XTO
40
41
AGND
VCC
42
FILT
43
44
VCOM
45
AGNDAD
46
VCCAD
VINL
47
VINR
48
U11
PCM9211PT
1
VIN
2
V
C
C
3
G
N
D
N
C
4 5
N
C
U9
1
PLT133/T10W
V
C
C
2
G
N
D
3
VOUT
4
N
C
N
C
5
U13 PLR135/T10
GND
GND
16V
0.1uF
C56
+3.3V
GND
16V
0.1uF
C57
+3.3V
GND
GND
GND
1
3
4
2
G
G
Y2
24.576MHz
GND 50V
27pF
C49
GND GND
50V
27pF
C48
16V
0.1uF
C53
16V
10uF
C52
25V
C54
4700pF 50V
0.068uF
C55
680
R44
EVM-RSTz
9211-MCLK
9211-BCLK
9211-FSYNC
9211-DOUT
9211-DIN
S/PDIF-IN
9211-MCLK
5
3
2
1
4
J6
GND
200k
R42
200k
R43
+3.3V
GND
GND
9211-LOCK
GND
PCM9211 Circuit
2
Blue
1
D5
16V
0.1uF
C64
GND
+3.3V IOVDD
I2S-SEL-S0
+3.3V
AC-MB-MCLK
AC-MB-BCLK
AC-MB-FSYNC
AC-MB-DOUT1
AC-MB-DIN1
I2S-SEL-S0
I2S-SEL-S1
+3.3V IOVDD
X-DIN1
X-DOUT1
X-MCLK
X-BCLK
X-FSYNC
9211-MCLK
9211-BCLK
9211-FSYNC
9211-DOUT
S
9211-DIN1
1
2
1B1
3
1B2
4
1A
5
2B1
6
2B2
8
GND
9
3A
3B2
10
3B1
11
4A
12
4B2
13
4B1
14
7
2A
OE
15
VCC
16
U10
SN74CB3Q3257DGVR
I2S-SEL-S1
+3.3V
GND
9211-BCLK
9211-FSYNC
9211-DOUT
9211-DIN1
9211-MCLK
X-MCLK
X-BCLK
X-FSYNC
X-DOUT1
X-DIN1
+3.3V IOVDD
GND
EVM-MCLK
EVM-BCLK
EVM-FSYNC
EVM-DOUT1
EVM-DIN1 EVM-DIN1
EVM-DOUT1
EVM-MCLK
EVM-BCLK
EVM-FSYNC
EVM-SCL
EVM-SDA
10.0k
R45
+3.3V
X-SPI-SS0
X-SPI-CLK
X-SPI-MISO
X-SPI-MOSI
+3.3V IOVDD
EVM-SPI-SS0
EVM-SPI-CLK
EVM-SPI-MISO
EVM-SPI-MOSI
GND GND
Digital Audio Mux/Translation
+3.3V
16V
0.1uF
C62
16V
10uF
C63
GND GND
16V
0.1uF
C59
16V
10uF
C58
GND GND GND GND
+5V +3.3V
16V
0.1uF
C60
16V
10uF
C61
L4
100 ohm
+5V-PCM +5V-PCM +3.3V +3.3V +5V-PCM +3.3V
+5V-PCM +3.3V +3.3V
+3.3V +3.3V
GND
16V
0.1uF
C74
+3.3V
GND
16V
0.1uF
C78
+3.3V
GND
16V
0.1uF
C75
GND
16V
0.1uF
C79
IOVDD IOVDD
GND
16V
0.1uF
C66
+3.3V
GND
16V
0.1uF
C69
+3.3V
GND
16V
0.1uF
C67
GND
16V
0.1uF
C70
IOVDD IOVDD
GND
16V
0.1uF
C65
+3.3V
GND
16V
0.1uF
C68
+3.3V
10.0k
R46
10.0k
R47
GND
+3.3V +3.3V
Control Interface Translation
Analog
Optical
Input
Optical
Input
Output
I²C Translator
SPI Translator
Digital Aud io Mux
S/PDIF Lock
Digital Aud io Translator / Buffer
VINR
Aud io Conver ters Motherboard DC058 Rev A
PCM9211, Aud io Interface and Test Po ints
VINL
GND GND
GND GND GND GND
X-P0
X-P1
RSTz
S1
ON ON
X
OFF
USB
S0
OPTICAL/ANALOG
AUDIO
EXTERNAL ASI
+3.3V IOVDD
GND
EVM-RSTz
GND
GND
16V
0.1uF
C76
+3.3V
GND
16V
0.1uF
C77
IOVDD
SPI / RST Translator
EVM-DIN2
EVM-DOUT2
S
1
2
1B1
3
1B2
4
1A
5
2B1
6
2B2
8
GND
3A
9
3B2
10
3B1
11
4A
12
4B2
13
4B1
14
7
2A
OE
15
VCC
16
U15
SN74CB3Q3257DGVR
I2S-SEL-S0
GND GND
I2S-SEL-S1
GND
X-DIN2
9211-DOUT
9211-DIN2
9211-DIN2
R40
DNP
0 R39
9211-DIN1
2
1
9211-DIN2
3
4
SW2
A6SN-2104
X-SPI-SS1 EVM-SPI-SS1
EVM-GPO2
EVM-GPI2
EVM-GPO1
EVM-GPI1
X-P2
X-P3
+3.3V IOVDD
GND GND
GPIO Translator
EVM-DIN3
EVM-DOUT3
EVM-DIN4
EVM-DOUT4
EVM-DOUT2
EVM-DOUT4
EVM-DOUT3
EVM-DIN2
EVM-DIN3
EVM-DIN4
GND
X-DIN2
X-DIN3
X-DIN4
X-DOUT2
X-DOUT3
X-DOUT4
AC-MB-DOUT2
AC-MB-DIN2
AC-MB-DOUT3
AC-MB-DOUT4
AC-MB-DIN3
AC-MB-DIN4
TP15
+1V
DNP
+5V
TP1
+5V
DNP
+1.0V +3.3V
+1.8V
TP14
TP2
+3.3V
DNP
+1.8V
DNP
GND GND GND GND
GND
EVM-DIN1
EVM-DOUT1
EVM-MCLK
EVM-BCLK
EVM-FSYNC
EVM-SCL
EVM-SDA
EVM-SPI-SS0
EVM-SPI-CLK
EVM-SPI-MISO
EVM Connector
EVM-SPI-MOSI
Test Points
I²C SPI
TP4
SCLK
DNP
TP6
MISO
DNP
TP11
MOSI
DNP
TP12
SS0
DNP
TP3
SCL
DNP
TP5
SDA
DNP
EVM-SPI-SS1
TP13
SS1
DNP
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15
17
19
21
16
18
20
22
J7
EVM-DIN2
EVM-DIN3
EVM-DIN4
EVM-DOUT2
EVM-DOUT3
EVM-DOUT4
1 2
Extern al Aud io
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
39 40
4
1
4
2
4
3
4
4
J8
GND
+5V
IOVDD
EVM-DIN1
EVM-DOUT1
EVM-MCLK
EVM-BCLK
EVM-FSYNC
EVM-DIN2
EVM-DOUT2
EVM-GPO2
EVM-RSTz
EVM-GPI2
EVM-SPI-SS0
EVM-SPI-CLK
EVM-SPI-MISO
EVM-SPI-MOSI
EVM-SCL
EVM-SDA
GND GND
EVM-SPI-SS1
EVM-GPO1
EVM-GPI1
EVM-DIN3
EVM-DIN4
EVM-DOUT3
EVM-DOUT4
X-DOUT3
X-DOUT4
X-DIN3
PSIA Connector
X-DIN4
GND
16V
0.1uF
C80
+3.3V
GND
16V
0.1uF
C81
IOVDD
Power
Audio Serial Interface Selection
SW2 Position
+3.3V +3.3V IOVDD
S
1
2
1B1
3
1B2
1A
4
5
2B1
6
2B2
8
GND
9
3A
3B2
10
3B1
11
4A
12
4B2
13
4B1
14
2A
7
OE
15
VCC
16
U17
SN74CB3Q3257DGVR
I2S-SEL-S0
GND GND
I2S-SEL-S1
GND
16V
0.1uF
C72
+3.3V
GND
16V
0.1uF
C73
IOVDD
GND
16V
0.1uF
C71
+3.3V
GND
GND
GND
From XMOS
X-DOUT2 From PCM9211
16V
10uF
C50
16V
10uF
C51
O ON N
O OF FF F
I2S-SEL-S0
I2S-SEL-S1
1
VCCA
2
SCLA
3
SDAA
4
GND
5
EN
6
SDAB
7
SCLB
8
VCCB
U20
TCA9802DGKR
TP7
GND
TP8
GND
TP9
GND
TP10
GND
1.5k
R41
2 4
U14A
5
VCC
SN74LVC1G14DCKR
3
GND
NC
1
U14B
DIR1
15
SN74AVC4T774RSVR
16
DIR2
1
A1
2
A2
3
A3
A4
4
5
DIR3
6
DIR4
OE
7 8
GND
9
B4
B3
10
B2
11
B1
12
VCCB
13 14
VCCA
U12
DIR1
15
SN74AVC4T774RSVR
DIR2
16
A1
1
2
A2
A3
3
4
A4
5
DIR3
6
DIR4
OE
7 8
GND
9
B4
B3
10
B2
11
B1
12
VCCB
13 14
VCCA
U16
DIR1
15
SN74AVC4T774RSVR
16
DIR2
1
A1
A2
2
A3
3
4
A4
5
DIR3
6
DIR4
OE
7 8
GND
B4
9
B3
10
B2
11
B1
12
VCCB
13
VCCA
14
U18
15
DIR1
SN74AVC4T774RSVR
16
DIR2
A1
1
A2
2
A3
3
4
A4
5
DIR3
6
DIR4
OE
7 8
GND
B4
9
B3
10
B2
11
B1
12
VCCB
13 14
VCCA
U19
15
DIR1
SN74AVC4T774RSVR
DIR2
16
A1
1
2
A2
3
A3
4
A4
5
DIR3
6
DIR4
OE
7 8
GND
B4
9
B3
10
B2
11
B1
12
13
VCCB
14
VCCA
U21
15
DIR1
SN74AVC4T774RSVR
16
DIR2
A1
1
A2
2
A3
3
A4
4
5
DIR3
6
DIR4
7
OE
8
GND
9
B4
B3
10
B2
11
B1
12
VCCB
13
VCCA
14
U22
Figure 7-2. AC-MB Schematics
Schematic and Bill of Materials www.ti.com
24 ADCx120Q1EVM-PDK, PCMD3140Q1EVM-PDK Evaluation Module SBAU398 – MARCH 2022
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