AK4490EQ(DAC : U4012 - U4018)
AK4490EQ Pin Function
[AK4490]
MS1648-J-03
2014/11
- 5 -
5.
AK4490EQ 40 +85 C 48pin LQFP (0.5mm pitch)
AKD4490
AK4490
[AK4490]
MS1648-J-03
2014/11
- 6 -
No. Pin Name
I/O
Function
1 NC
-
No internal bonding.
Connect to GND.
2 PDN
I
Power-Down Mode Pin
When at L , the AK4490 is in power-down mode and is held in reset.
The AK4490 must always be reset upon power-up.
3
BICK
I
Audio Serial Data Clock Pin in PCM Mode
DCLK
I
DSD Clock Pin in DSD Mode
BCK
I
Audio Serial Data Clock Pin
4
SDATA
I
Audio Serial Data Input Pin in PCM Mode
DSDL
I
DSD Lch Data Input Pin in DSD Mode
DINL
I
Lch Audio Serial Data Input Pin
5
LRCK
I
L/R Clock Pin in PCM Mode
DSDR
I
DSD Rch Data Input Pin in DSD Mode in Serial Control Mode
DINR
I
Rch Audio Serial Data Input Pin in Serial Control Mode
6
SSLOW
I
Digital filter setting in Parallel Control Mode
WCK
I
Word Clock input pin in Serial Control Mode
7
SMUTE I
Soft Mute Pin in Parallel Control Mode
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
8
SD
I
Digital filter setting in Parallel Control Mode
CCLK
I
Control Data Clock Pin in Serial Control Mode, I2C= L
SCL
I
Control Data Clock Pin in Serial Control Mode, I2C= H
9
SLOW
I
Digital filter setting in Parallel Control Mode
CDTI
I
Control Data Input Pin in Serial Control Mode, I2C= L
SDA
I/O Control Data Clock Pin in Serial Control Mode, I2C= H
10
DIF0
I
Digital Input Format 0 Pin in PCM Mode
DZFL
O Lch Zero Input Detect Pin in Serial Control Mode
11
DIF1
I
Digital Input Format 1 Pin in PCM Mode
DZFR
O Rch Zero Input Detect Pin in Serial Control Mode
12
DIF2
I
Digital Input Format 2 Pin in PCM Mode
CAD0
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.
206