AK4367 Datasheet, PDF (4/38 Pages) Asahi Kasei Microsystems – OUTPUT MIXER & HP - AMP 24 BIT 2 CH DAC

ASAHI KASEI
[AK4367]
PIN/FUNCTION
No. Pin Name
1 ^SDA
CDTI
2 ^SCL
CCLK
3 ^CAD0
CSN
4 SDATA
5 LRCK
6 BICK
7 MCLK
8 PDN
9 I2C
10 MOUT
11 VCOM
12 MUTET
13 VDD
14 VSS
15 HVDD
16 HPR
17 HPL
18 MIN
19 RIN
20 LIN
I/O
Function
I/O Control Data Input/Output Pin (I2C pin = “H”)
I Control Data Input Pin (I2C pin = “L”)
I Control Data Clock Pin (I2C pin = “H”)
I Control Data Clock Pin (I2C pin = “L”)
I Chip Address 0 Select Pin (I2C pin = “H”)
I Control Data Chip Select Pin (I2C pin = “L”)
I Audio Serial Data Input Pin
I
L/R Clock Pin
This clock determines which audio channel is currently being input on SDATA pin.
I
Serial Bit Clock Pin
This clock is used to latch audio data.
I Master Clock Input Pin
Power-down & Reset Pin
I When at “L”, the AK4367 is in power-down mode and is held in reset.
The AK4367 should always be reset upon power-up.
I
Control Mode Select Pin (Internal Pull-down Pin)
“H”: I²C Bus, “L”: 3-wire Serial
O Mono Analog Output Pin
Common Voltage Output Pin
O Normally connected to VSS pin with 0.1µF ceramic capacitor in parallel with a 2.2µF
electrolytic capacitor.
O
Mute Time Constant Control Pin
Connected to VSS pin with a capacitor for mute time constant.
- Power Supply Pin
- Ground Pin
- Power Supply Pin for Headphone Amp
O Rch Headphone Amp Output Pin
O Lch Headphone Amp Output Pin
I Mono Analog Input Pin
I Rch Analog Input Pin
I Lch Analog Input Pin
Note: All digital input pins except analog input pins (MIN, RIN and LIN) and internal pull-down pin must not be left
floating.
„ Handling of Unused Pin
The unused I/O pins should be processed appropriately as below.
Classification
Analog
Digital
Pin Name
MOUT, MUTET, HPR, HPL, MIN, RIN, LIN
CAD0
Setting
These pins should be open.
These pins should be connected to VSS.
MS0247-E-01
-4-
2004/11