ASAHI KASEI
[AK4571]
No.
Signal Name
EEPROM I/F
31
32
34
33
35
CS
SK
EPDI
EPAO
EPEN
I/O
O
O
I
O
I
Ana / Dig
D
D
D
D
D
EEPROM I/F Chip Select Pin
Read Clock Pin
EEPROM Data Input Pin
Description
EEPROM Address Output Pin
EEPROM Enable Pin
"H": Read Device/String Descriptor from external EEPROM
”L”: Read Device/String Descriptor from internal ROM.
CS,SK,EPDI,EPAO are Hi-Z
EEPROM Select
“L”: 1Kbit Type EEPROM is connected.
“H”: 2Kbit/4Kbit EEPROM is connected
A/D Mute
Toggles mute status at the rising edge. If this pin is not used, please
connect this pin to DGND.
D/A Mute
Sets “1” to internal register at the rising edge, and reset to “0” at the
falling edge. If this pin is not used, please connect this pin to DGND.
D/A Volume Up Pin
Sets “1” to internal register at the rising edge, and reset to “0” at the
falling edge. If this pin is not used, please connect this pin to DGND.
D/A Volume Down Pin
Sets “1” to internal register at the rising edge, and reset to “0” at the
falling edge. If this pin is not used, please connect this pin to DGND.
Recording Mute Status Pin.
“H”: Mute ON
“L”: Mute OFF
In suspend mode, this pin is “L”.
Analog Power Supply, 3.3V
Analog Ground
Digital Power Supply, 3.3V
Digital Ground
Bulk Ground, 0V
Please tie down to AGND for normal operation.
Please tie down to AGND for normal operation.
Please tie down to AGND for normal operation.
Please tie down to DGND for normal operation.
Please open state
Please tie down to DGND for normal operation.
36
EPSEL
I
D
HID Interface
39
IMUTE
I
D
43
OMUTE
I
D
41
INC
I
D
42
DEC
I
D
40
MSTAT
O
D
Power Supply
25
VA
26
AGND
1
VD
2
DGND
3
BGND
Test Mode
18
TESTMODE1
29
TESTMODE2
30
TESTMODE3
38
TEST1
37
48
TEST2
TEST3
P
P
P
P
P
I
I
I
I
O
I
A
A
D
D
D
MS0153-J-02
-5 -
2003/3
AKM [ ASAHI KASEI MICROSYSTEMS ]
