ASAHI KASEI
[AK4387]
PIN/FUNCTION
Function
Master Clock Input Pin
An external TTL clock should be input on this pin.
2
BICK
I
Audio Serial Data Clock Pin
3
SDTI
I
Audio Serial Data Input Pin
4
LRCK
I
L/R Clock Pin
5
RSTN
I
Reset Mode Pin
When at “L”, the AK4387 is in the power-down mode and is held in reset.
The AK4387 must be reset once upon power-up.
6
CSN
I
Chip Select Pin
7
CCLK
I
Control Data Clock Pin
8
CDTI
I
Control Data Input Pin
9
NC
-
No Connect pin
No internal bonding. This pin should be opened or connected to VSS.
10
AOUTR
O
Rch Analog Output Pin
11
AOUTL
O
Lch Analog Output Pin
12
VCOM
O
Common Voltage Pin, AVDD/2
Normally connected to VSS with a 0.1µF ceramic capacitor in parallel with a
10µF electrolytic cap.
13
VSS
-
Ground Pin
14
AVDD
-
Power Supply Pin
15
DVDD
-
Power Supply Pin
16
DZF
O
Lch and Rch Data Zero Input Detect Pin
Note: All input pins should not be left floating.
No.
1
Pin Name
MCLK
I/O
I
ABSOLUTE MAXIMUM RATINGS
(VSS=0V; Note 1)
Parameter
Power Supply
Input Current (any pins except for supplies)
Input Voltage
Ambient Operating Temperature
Storage Temperature
Note 1. All voltages with respect to ground.
Symbol
AVDD, DVDD
IIN
VIND
Ta
Tstg
min
-0.3
-
-0.3
-20
-65
max
6.0
±10
DVDD+0.3
85
150
Units
V
mA
V
°C
°C
WARNING: Operation at or beyond these limits may results in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
RECOMMENDED OPERATING CONDITIONS
(VSS=0V; Note 1)
Parameter
Power Supply
Symbol
AVDD, DVDD
min
4.5
typ
5.0
max
5.5
Units
V
(Note 2)
Note 2. The power up sequence between AVDD and DVDD is not critical.
*AKM assumes no responsibility for the usage beyond the conditions in this datasheet.
MS0429-E-00
-3-
2005/09
AKM [ ASAHI KASEI MICROSYSTEMS ]
