1-21
TH-A30
AK4355 (U6) : DAC
1.Pin layout
2.Block diagram
3.Pin function
SCF
DAC
DATT
DZF
LOUT1+
LOUT1-
SCF
DAC
DATT
ROUT1+
ROUT1-
SCF
DAC
DATT
LOUT2+
LOUT2-
SCF
DAC
DATT
ROUT2+
ROUT2-
SCF
DAC
DATT
LOUT3+
LOUT3-
SCF
DAC
DATT
ROUT3+
ROUT3-
Audio
I/F
Control
Register
MCLK
LRCK
BICK
SDTI1
SDTI2
SDTI3
CSN
CCLK
CDTI
6
5
4
3
2
1
7
8
10
9
11
12
23
24
25
26
27
28
22
21
19
20
18
17
13
14
16
15
Pin No.
Symbol
I/O
Function
1
VREF
I
Positive Voltage Reference Input Pin
2
DZF
O
Zero Input Detect Pin
3
PDN
I
Power-Down Mode Pin
When at “L”, the AK4355 is in the power-down mode and is held in reset.
The AK4355 should always be reset upon power-up.
4
MCLK
I
Master Clock Input Pin
An external TTL clock should be input on this pin.
5
BICK
I
Audio Serial Data Clock Pin
6
SDTI1
I
DAC1 Audio Serial Data Input Pin
7
SDTI2
I
DAC2 Audio Serial Data Input Pin
8
SDTI3
I
DAC3 Audio Serial Data Input Pin
9
LRCK
I
L/R Clock Pin
10
CSN
I
Chip Select Pin
11
CCLK
I
Control Clock Pin
12
CDTI
I
Control Data Input Pin
13
DVDD
-
Digital Power Supply Pin
14
DVSS
-
Digital Ground Pin
15
ROUT3-
O
DAC3 Rch Negative Analog Output Pin
16
ROUT3+
O
DAC3 Rch Positive Analog Output Pin
17
LOUT3-
O
DAC3 Lch Negative Analog Output Pin
18
LOUT3+
O
DAC3 Lch Positive Analog Output Pin
19
ROUT2-
O
DAC2 Rch Negative Analog Output Pin
20
ROUT2+
O
DAC2 Rch Positive Analog Output Pin
21
LOUT2-
O
DAC2 Lch Negative Analog Output Pin
22
LOUT2+
O
DAC2 Lch Positive Analog Output Pin
23
ROUT1-
O
DAC1 Rch Negative Analog Output Pin
24
ROUT1+
O
DAC1 Rch Positive Analog Output Pin
25
LOUT1-
O
DAC1 Lch Negative Analog Output Pin
26
LOUT1+
O
DAC1 Lch Positive Analog Output Pin
27
AVSS
-
Analog Ground Pin
28
AVDD
-
Analog Power Supply Pin
Note: All input pins should not be left floating.
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