ASAHI KASEI
[AK4537]
PIN/FUNCTION
No.
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
Pin Name
MICOUTL
MICOUTR
EXT
MICR
MPE
MPI
EXT
MICR
VCOM
AVSS
AVDD
PVDD
PVSS
VCOC
NC
CAD0
PDN
CSN
CAD1
CCLK
SCL
CDTI
SDA
CDTO
I2C
SDTI
SDTO
LRCK
BICK
MCKO
NC
I/O
O
O
I
I
O
O
I
I
O
-
-
-
-
O
-
I
I
I
I
I
I
I
I/O
O
I
I
O
I/O
I/O
O
-
Function
MIC-Amp Lch Output Pin
MIC-Amp Rch Output Pin
External Microphone Input Pin (Mono Input)
(PMMICR bit = “0”)
Stereo Microphone Rch Input Pin
(PMMICR bit = “1”)
MIC Power Supply Pin for External Microphone / Stereo Microphone Rch
MIC Power Supply Pin for Internal Microphone / Stereo Microphone Lch
Internal Microphone Input Pin (Mono Input)
(PMMICL bit = “0”)
Stereo Microphone Lch Input Pin
(PMMICL bit = “1”)
Common Voltage Output Pin, 0.45 x AVDD
Bias voltage of ADC inputs and DAC outputs.
Analog Ground Pin
Analog Power Supply Pin
PLL Power Supply Pin
PLL Ground Pin
Output Pin for Loop Filter of PLL Circuit
This pin should be connected to PVSS with one resistor and capacitor in series.
No Connect.
This pin should be left floating.
Chip Address 0 Select Pin
Power-Down Mode Pin
“H”: Power up, “L”: Power down reset and initializes the control register.
Chip Select Pin (I2C = “L”)
Chip Address 1 Select Pin (I2C = “H”)
Control Data Clock Pin (I2C = “L”)
Control Data Clock Pin (I2C = “H”)
Control Data Input Pin (I2C = “L”)
Control Data Input Pin (I2C = “H”)
Control Data Output Pin (I2C = “L”)
Control Mode Select Pin
“H”: I
2
C Bus, “L”: 4-wire Serial
Audio Serial Data Input Pin
Audio Serial Data Output Pin
Input / Output Channel Clock Pin
Audio Serial Data Clock Pin
Master Clock Output Pin
No Connect.
This pin should be left floating.
MS0202-E-04
-5-
2005/04
AKM [ ASAHI KASEI MICROSYSTEMS ]
