AK4634EN Datasheet, PDF (6/94 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK -AMP

[AK4634]
PIN/FUNCTION (AK4634EN)
No. Pin Name
I/O
Function
1 NC
- No Connection. No internal bonding. This pin must be connected to the ground.
2 TST3
3 AVDD
- ^{TEST3 pin}
This pin must be open.
- Analog Power Supply Pin 2.2 ~ 3.6V
4 VSS1
- Ground Pin.
5 TST2
6 TST1
7 NC
- ^{TEST2 pin}
This pin must be open.
- ^{TEST1 pin}
This pin must be open.
- No Connection. No internal bonding. This pin must be connected to the ground.
CSN
8
SDA
I Chip Select Pin (I2C pin = “L”)
I/O Control Data Input/Output Pin (I2C pin = “H”)
9 PDN
Power-Down Mode Pin
I
“H”: Power up, “L”: Power down reset and initialize the control register.
AK4634 must be always reset upon power-up.
10 CDTIO
I/O
Control Data Input/Output Pin (I2C pin = “L”)
This pin must be connected to the ground. (I2C pin = “H”)
CCLK
11
SCL
I Control Data Clock Pin (I2C pin = “L”)
I Control Data Clock Pin (I2C pin = “H”)
12 FCK
I/O Frame Clock Pin
13 MCKI
I External Master Clock Input Pin
14 BICK
I/O Audio Serial Data Clock Pin
15 SDTI
I Audio Serial Data Input Pin
16 SDTO
17 I2C
O Audio Serial Data Output Pin
I Control Mode Select Pin “H”: I²C Bus, “L”: 3-wire Serial
18 MCKO
O Master Clock Output Pin
19 DVDD
- Digital Power Supply Pin 1.6 ~ 3.6V
20 VSS2
- Ground Pin.
21 NC
- No Connection. No internal bonding. This pin must be connected to the ground.
22 SPN
O Speaker Amp Negative Output Pin
23 VSS3
- Ground Pin.
24 NC
- No Connection. No internal bonding. This pin must be connected to the ground.
25 SPP
O Speaker Amp Negative Output Pin
26 SVDD
- Speaker Amp Power Supply Pin 2.2 ~4.0V
27 AOUT
O Mono Line Output Pin
LIN
28
MICN
I Line Input Pin for Single Ended Input
(MDIF bit = “0”)
I Microphone Negative Input Pin for Differential Input (MDIF bit = “1”)
MIC
29
MICP
I Microphone Input Pin for Single Ended Input
(MDIF bit = “0”)
I Microphone Positive Input Pin for Differential Input (MDIF bit = “1”)
30 MPI
I MIC Power Supply Pin for Microphone
31 VCOM
O
Common Voltage Output Pin, 0.45 x AVDD
Bias voltage of ADC inputs and DAC outputs.
32 VCOC
O
Output Pin for Loop Filter of PLL Circuit
This pin must be connected to VSS1 with one resistor and capacitor in series.
Note: All input pins except analog input pins (MIC/MICP, LIN/MICN pins) must not be left floating
MS0686-E-03
-6-
2014/10