ASAHI KASEI
[AK4527B]
PIN/FUNCTION
No.
1
2
3
Pin Name
SDOS
I2C
SMUTE
I/O
I
I
I
Function
SDTO Source Select Pin
(Note 1)
“L”: Internal ADC output, “H”: DAUX input
Control Mode Select Pin
“L”: 3-wire Serial, “H”: I
2
C Bus
Soft Mute Pin
(Note 1)
When this pin goes to “H”, soft mute cycle is initialized.
When returning to “L”, the output mute releases.
Audio Serial Data Clock Pin
Input Channel Clock Pin
DAC1 Audio Serial Data Input Pin
DAC2 Audio Serial Data Input Pin
DAC3 Audio Serial Data Input Pin
Audio Serial Data Output Pin
AUX Audio Serial Data Input Pin
Double Speed Sampling Mode Pin (Note 1)
“L”: Normal Speed, “H”: Double Speed
No Connect
No internal bonding.
Zero Input Detect Enable Pin
“L”: mode 7 (disable) at parallel mode,
zero detect mode is selectable by DZFM2-0 bits at serial mode
“H”: mode 0 (DZF1 is AND of all six channels)
Output Buffer Power Supply Pin, 2.7V∼5.5V
Digital Power Supply Pin, 4.5V∼5.5V
Digital Ground Pin, 0V
Power-Down & Reset Pin
When “L”, the AK4527B is powered-down and the control registers are reset to default
state. If the state of P/S or CAD0-1 changes, then the AK4527B must be reset by PDN.
Test Pin
This pin should be connected to DVSS.
No Connect
No internal bonding.
Analog Input Format Select Pin
“H”: Full-differential input, “L”: Single-ended input
Chip Address 1 Pin
Chip Address 0 Pin
4
5
6
7
8
9
10
11
12
13
BICK
LRCK
SDTI1
SDTI2
SDTI3
SDTO
DAUX
DFS
NC
DZFE
I
I
I
I
I
O
I
I
-
I
14
15
16
17
TVDD
DVDD
DVSS
PDN
-
-
-
I
18
19
20
21
22
TST
NC
ADIF
CAD1
CAD0
I
-
I
I
I
MS0056-E-00
-5-
2000/10
AKM [ ASAHI KASEI MICROSYSTEMS ]
