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ASAHI KASEI
[AK4120]
MS0134-E-00
2002/1
- 3 -
PIN/FUNCTION
No.
1
2
3
4
5
Pin Name
IMCLK1
SDTI1
IBICK1
ILRCK1
TEST
I/O
I
I
I
I
I
Function
Master Clock Input Pin for Input#1
Audio Serial Data Input Pin for Input#1
Audio Serial Data Clock Pin for Input#1
L/R Clock Pin for Input#1
Test Pin. Connect to VSS.
Audio I/F Select Pin
“L”: Set by Register, “H”: I
2
S
I
2
C Select Pin. “L”: 3-wire, “H”: I
2
C
Chip Address 0 Pin
Chip Select Pin in 3wire serial control mode in 3-wire Serial Control Mode.
Chip Address 1 Pin in I
2
C control mode.
Control Data Clock Pin in 3wire serial control mode in 3-wire Serial Control
Mode.
Control Data Clock Pin in I
2
C control mode.
Control Data Input Pin in 3wire serial control mode in 3-wire Serial Control
Mode.
Control Data Pin in I
2
C serial control mode in I
2
C control mode.
Power-Down pin
When “L”, the AK4120 is powered-down and reset.
L/R Clock Pin for Output
Audio Serial Data Clock Pin for Output
Audio Serial Data Pin for Output
Master Clock Pin for Output
Master/Slave select pin for Output Audio Data
“L”: Slave, “H”: Master
Digital Ground Pin
Digital Power Supply Pin, 3.3V
Master/Slave select pin for Input Audio Data #2
“L”: Slave, “H”: Master
L/R Clock Pin for Input#2
Audio Serial Data Clock Pin for Input#2
Audio Serial Data Input Pin for Input#2
Master Clock Input Pin for Input#2
6
I2S
I
7
8
I2C
CAD0
CSN
CAD1
I
I
I
I
9
CCLK
I
10
SCL
I
CDTI
I
11
SDA
I/O
12
PDN
I
13
14
15
16
OLRCK
OBICK
SDTO
OMCLK
I/O
I/O
O
I
17
OMODE
I
18
19
VSS
VDD
I
I
20
I2MODE
I
21
22
23
24
ILRCK2
IBICK2
SDTI2
IMCLK2
I/O
I/O
I
I