ak4556 AKM Semiconductor, Inc., ak4556 Datasheet - Page 5

• Manufacturer Part Number: ak4556
• Description: 3v 192khz 24bit ?? Codec
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Note: Do not allow digital input pins except analog input pins (LIN and RIN) to float.
The unused I/O pin should be processed appropriately as below.
MS0559-E-00
No.
Handling of Unused Pin
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
Pin Name
RIN
LIN
VSS
VA
VD
DEM0
DEM1
SDTO
CKS0
CSK1
CSK2
CSK3
SDTI
LRCK
MCLK
BCLK
PDN
VCOM
LOUT
ROUT
Classification
Analog Input
Analog Output
I/O
I/O
I/O
O
O
O
O
I
I
-
-
I
I
I
I
I
I
I
I
I
-
Function
Rch Analog Input Pin
Ground Pin
Analog Power Supply Pin
Digital Power Supply Pin
De-emphasis Control Pin
De-emphasis Control Pin
Master Clock Input Pin
Common Voltage Output Pin, 0.5 x VA
Lch Analog Input Pin
Audio Serial Data Output Pin
Mode Setting Pin #0
Mode Setting Pin #1
Mode Setting Pin #2
Mode Setting Pin #3
Audio Serial Data Input Pin
Input/Output Channel Clock Pin
Audio Serial Data Clock Pin
Power-Down & Reset Mode Pin
Lch Analog Output Pin
Rch Analog Output Pin
Pin Name
LIN, RIN
LOUT, ROUT
When PDN pin is “L”, SDTO pin outputs “L”.
When PDN pin is “L”, LRCK pin outputs “L” in master mode.
When PDN pin is “L”, BCLK pin outputs “L” in master mode.
“L”: Power-down and Reset, “H”: Normal operation
The AK4556 should be reset once by bringing PDN pin = “L”.
When PDN pin is “L”, LOUT pin becomes Hi-Z.
When PDN pin is “L”, ROUT pin becomes Hi-Z.
PIN/FUNCTION
- 5 -
Setting
These pins should be open.
These pins should be open.
[AK4556]
2006/11