AK4571 Datasheet, PDF (5/54 Pages) Asahi Kasei Microsystems – USB I/F Audio CODEC

ASAHI KASEI
[AK4571]
No.
Signal Name
EEPROM I/F
31 CS
32 SK
34 EPDI
33 EPAO
35 EPEN
36 EPSEL
HID Interface
39 IMUTE
43 OMUTE
41 INC
42 DEC
40 MSTAT
Power Supply
25 VA
26 AGND
1 VD
2 DGND
3 BGND
Test Mode
18 TESTMODE1
29 TESTMODE2
30 TESTMODE3
38 TEST1
37 TEST2
48 TEST3
I/O Ana / Dig
Description
OD
OD
ID
OD
ID
ID
ID
ID
ID
ID
OD
PA
PA
PD
PD
PD
I
I
I
I
O
I
EEPROM I/F Chip Select Pin
Read Clock Pin
EEPROM Data Input Pin
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.
MS0153-J-02
-5 -
2003/3