Pin descriptions, Pin name # pin description – Cirrus Logic CS42418 User Manual
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DS603F2
CS42418
2. PIN DESCRIPTIONS
Pin Name
#
Pin Description
DAC_SDIN1
DAC_SDIN2
DAC_SDIN3-
DAC_SDIN4
1
64
63
62
DAC Serial Audio Data Input (Input) - Input for two’s complement serial audio data.
DAC_SCLK
2
DAC Serial Clock (Input/Output) - Serial clock for the DAC serial audio interface.
DAC_LRCK
3
DAC Left Right Clock (Input/Output) - Determines which channel, Left or Right, is currently active on
the DAC serial audio data line.
VD
4
51
Digital Power (Input) - Positive power supply for the digital section.
DGND
5
52
Digital Ground (Input) - Ground reference. Should be connected to digital ground.
VLC
6
Control Port Power (Input) - Determines the required signal level for the control port.
SCL/CCLK
7
Serial Control Port Clock (Input) - Serial clock for the serial control port. Requires an external pull-up
resistor to the logic interface voltage in I²C mode as shown in the Typical Connection Diagram.
SDA/CDOUT
8
Serial Control Data (Input/Output) - SDA is a data I/O line in I²C mode and requires an external pull-up
resistor to the logic interface voltage, as shown in the Typical Connection Diagram. CDOUT is the output
data line for the control port interface in SPI mode.
AD1/CDIN
9
Address Bit 1 (I²C)/Serial Control Data (SPI) (Input) - AD1 is a chip address pin in I²C mode; CDIN is
the input data line for the control port interface in SPI mode.
AD0/CS
10
Address Bit 0 (I²C)/Control Port Chip Select (SPI) (Input) - AD0 is a chip address pin in I²C mode; CS
is the chip select signal in SPI mode.
INT
11
Interrupt (Output) - The CS42418 will generate an interrupt condition as per the Interrupt Mask register.
See
for more details.
1
2
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
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
DAC_SDIN1
A
DC_
S
C
L
K
AD
C_L
R
C
K
VD
DGND
VLC
SCL/CCLK
SDA/CDOUT
AD1/CDIN
AD0/CS
INT
RST
AINR-
AINR+
AINL+
AINL-
VQ
FI
L
T
+
RE
F
G
N
D
AO
U
T
B4-
AO
U
T
B4+
AO
U
T
A4+
AO
U
T
A4-
VA
AG
ND
AO
U
T
B3
-
AO
U
T
B3
+
AO
U
T
A3
+
AO
U
T
A3
-
AO
U
T
B2-
AO
U
T
B2
+
AO
U
T
A2
+
AOUTA2-
AOUTB1-
AOUTB1+
AOUTA1+
AOUTA1-
MUTEC
AGND
VA
GPO7
GPO6
GPO5
GPO4
GPO3
GPO2
GPO1
LPFLT
NC
NC
VD
DG
N
D
VL
S
NC
RMCK
ADC
_
SD
O
U
T
AD
CI
N
2
AD
CI
N
1
OMCK
DAC_LRCK
DAC_SCLK
DAC
_
SD
IN
4
DAC
_
SD
IN
3
DAC
_
S
D
IN
2
CS42418