AK4554 Datasheet, PDF (3/17 Pages) Asahi Kasei Microsystems – Low Power & Small Package 16bit ΔΣ CODEC

ASAHI KASEI
[AK4554]
PIN/FUNCTION
No. Pin Name
1 VCOM
2 AINR
3 AINL
4 VSS
5 VDD
6 DEM0
7 DEM1
8 SDTO
9 SDTI
10 LRCK
11 MCLK
12 SCLK
13 PWADN
14 PWDAN
15 AOUTL
16 AOUTR
I/O Function
O Common Voltage Output Pin, 0.5 x VDD
I Rch Analog Input Pin
I Lch Analog Input Pin
- Ground Pin
- Power Supply Pin
I De-emphasis Control Pin
I De-emphasis Control Pin
O Audio Serial Data Output Pin
I Audio Serial Data Input Pin
I Input/Output Channel Clock Pin
I Master Clock Input Pin
I Audio Serial Data Clock Pin
I
ADC Power-Down & Reset Mode Pin
“L”: Power down. ADC should always be reset upon power-up.
I
DAC Power-Down & Reset Mode Pin
“L”: Power down. DAC should always be reset upon power-up.
O Lch Analog Output Pin
O Rch Analog Output Pin
Note: All input pins except analog input pins (AINR and AINL) should not be left floating.
„ Handling of Unused Pin
The unused I/O pins should be processed appropriately as below.
Classification
Analog
Digital
Pin Name
AINR, AINL, AOUTL, AOUTR
SDTO
SDTI
Setting
These pins should be open.
This pin should be open.
This pin should be connected to VSS.
MS0325-E-01
-3-
2005/08