AK4490EQ Datasheet, PDF (6/68 Pages) Asahi Kasei Microsystems – Premium 32-Bit 2ch DAC

[AK4490]
■ Pin Functions
No. Pin Name
I/O
Function
1 NC
- No internal bonding. Connect to GND.
2 PDN
Power-Down Mode Pin
I
When at “L”, the AK4490 is in power-down mode and is held in
reset.The AK4490 must always be reset upon power-up.
BICK
I Audio Serial Data Clock Pin in PCM Mode
3 DCLK
I DSD Clock Pin in DSD Mode
BCK
I Audio Serial Data Clock Pin
SDATA
I Audio Serial Data Input Pin in PCM Mode
4 DSDL
I DSD Lch Data Input Pin in DSD Mode
DINL
LRCK
I Lch Audio Serial Data Input Pin
I L/R Clock Pin in PCM Mode
5 DSDR
I DSD Rch Data Input Pin in DSD Mode in Serial Control Mode
DINR
6 ^SSLOW
WCK
I Rch Audio Serial Data Input Pin in Serial Control Mode
I Digital Filter Setting in Parallel Control Mode
I Word Clock input pin in Serial Control Mode
7 ^SMUTE
Soft Mute Pin in Parallel Control Mode
I
When this pin is changed to “H”, soft mute cycle is initiated.
When returning “L”, the output mute releases.
CSN
I Chip Select Pin in Serial Control Mode, I2C= “L”
SD
I Digital Filter Setting Pin in Parallel Control Mode
8 CCLK
I Control Data Clock Pin in Serial Control Mode, I2C= “L”
SCL
SLOW
I Control Data Clock Input Pin in Serial Control Mode, I2C= “H”
I Digital Filter Setting Pin in Parallel Control Mode
9 CDTI
I Control Data Input Pin in Serial Control Mode, I2C= “L”
SDA
10 ^DIF0
DZFL
I/O I2C=”H”: Control Data Input Pin in Serial Control Mode, I2C= “H”
I Digital Input Format 0 Pin in PCM Mode
O Lch Zero Input Detect Pin in Serial Control Mode
DIF1
11 _DZFR
DIF2
12 _CAD0
I Digital Input Format 1 Pin in PCM Mode
O Rch Zero Input Detect Pin in Serial Control Mode
I Digital Input Format 2 Pin in PCM Control Mode
I Chip Address 0 Pin in Serial Control Mode
13 PSN
I
Parallel or Serial Select Pin
(Internal pull-up pin)
“L”: Serial Control Mode, “H”: Parallel Control Mode
14 I2C
I I2C mode select pin in Serial mode
(Internal pull-down pin)
15 DEM0
I De-emphasis Enable 0 Pin in Parallel Control Mode (Internal pull-up pin)
Note: All input pins except internal pull-up/down pins must not be left floating.
MS1648-E-03
-6-
2014/11