AK4538 Datasheet, PDF (4/70 Pages) Asahi Kasei Microsystems – 16Bit DS CODEC with MIC/HP/SPK-AMP

ASAHI KASEI
No. Pin Name
1 MICOUT
2 MDT
3 EXT
4 MPE
5 MPI
6 INT
7 VCOM
8 AVSS
9 AVDD
10 PVDD
11 PVSS
12 VCOC
13 NC
14 CAD0
15 PDN
CSN
16
CAD1
CCLK
17
SCL
CDTI
18
SDA
19 CDTO
20 I2C
21 SDTI
22 SDTO
23 LRCK
24 BICK
25 MCKO
26 NC
[AK4538]
PIN/FUNCTION of 52QFN
I/O
Function
O Microphone Analog Output Pin
I Microphone Detect Pin (Internal pull down by 500kΩ)
I External Microphone Input Pin (Mono Input)
O MIC Power Supply Pin for External Microphone
O MIC Power Supply Pin for Internal Microphone
I Internal Microphone Input Pin (Mono Input)
Common Voltage Output Pin, 0.45 x AVDD
O
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
O
This pin should be connected to PVSS with one resistor and capacitor in series.
- No Connect. No internal bonding.
I Chip Address 0 Select Pin
Power-Down Mode Pin
I
“H”: Power up, “L”: Power down reset and initializes the control register.
I Chip Select Pin (I2C = “L”)
I Chip Address 1 Select Pin (I2C = “H”)
I Control Data Clock Pin (I2C = “L”)
I Control Data Clock Pin (I2C = “H”)
I Control Data Input Pin (I2C = “L”)
I/O Control Data Input Pin (I2C = “H”)
O Control Data Output Pin (I2C = “L”)
Control Mode Select Pin
I
“H”: I²C Bus, “L”: 4-wire Serial
I Audio Serial Data Input Pin
O Audio Serial Data Output Pin
I/O Input / Output Channel Clock Pin
I/O Audio Serial Data Clock Pin
O Master Clock Output Pin
- No Connect. No internal bonding.
MS0198-E-01
-4-
2003/5