ak4342 AKM Semiconductor, Inc., ak4342 Datasheet - Page 4

• Manufacturer Part Number: ak4342
• Description: 24-bit Stereo Dac With Hp-amp & 2v Line-out
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Note: Do not allow digital input pins except analog input pins (RIN and LIN) and internal pull-up pins (CAD0/CSN and
MS0506-E-02
No.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
I2C) to float.
Pin Name
SDA
CDTI
SCL
CCLK
CAD0
CSN
MCLK
BICK
LRCK
SDATA
PDN
CP
CN
PVDD
PVSS
PVEE
HVEE
HPL
HPR
HVDD
HVSS
LOUT
ROUT
LAUX
RAUX
LIN
RIN
MUTET
VCOM
AVDD
AVSS
DVSS
DVDD
TVDD
I2C
I/O
I/O
O
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
-
-
-
-
-
I
-
-
-
-
-
I
I
I
I
I
Control Data Input/Output Pin (I2C pin = “H”)
Control Data Input Pin (I2C pin = “L”)
Control Data Clock Pin (I2C pin = “H”)
Control Data Clock Pin (I2C pin = “L”)
Chip Address 0 Select Pin (I2C pin = “H”) (Internal Pull-up Pin to TVDD pin)
Control Data Chip Select Pin (I2C pin = “L”) (Internal Pull-up Pin to TVDD pin)
Master Clock Input Pin
Serial Bit Clock Pin
L/R Clock Pin
Audio Serial Data Input Pin
Power-down & Reset Pin
Positive Charge Pump Capacitor Terminal Pin
Negative Charge Pump Capacitor Terminal Pin
Charge Pump Circuit Positive Power Supply Pin
Charge Pump Circuit Ground Pin
Charge Pump Circuit Negative Voltage Output Pin
Headphone Amp Negative Power Supply Pin
Lch Headphone Amp Output Pin
Rch Headphone Amp Output Pin
Headphone Amp Positive Power Supply Pin
Headphone Amp Ground Pin
Lch Lineout Output Pin
Rch Lineout Output Pin
Lch Auxiliary Output Pin
Rch Auxiliary Output Pin
Lch Analog Input Pin
Rch Analog Input Pin
Mute Time Constant Control Pin
Common Voltage Output Pin
Analog Power Supply Pin
Analog Ground Pin
Digital Ground Pin
Digital Power Supply Pin
Digital Interface Power Supply Pin
Control Mode Select Pin (Internal Pull-up Pin to TVDD pin)
When at “L”, the AK4342 is in power-down mode and is held in reset.
Connected to AVSS pin through a 1µF capacitor for mute time constant.
Normally connected to AVSS pin with 0.1µF ceramic capacitor in parallel with a 2.2µF
electrolytic capacitor.
This clock is used to latch audio data.
This clock determines which audio channel is currently being input on SDATA pin.
The AK4342 must be reset once upon power-up.
An external pull-up resister is required.
An external pull-up resistor is required.
Connected to PVEE pin
“H”: I
2
C Bus, “L”: 3-wire Serial
PIN/FUNCTION
- 4 -
Function
[AK4342]
2006/07