ak4380 AKM Semiconductor, Inc., ak4380 Datasheet - Page 18

• Manufacturer Part Number: ak4380
• Description: 100db 24bit 96khz 2ch Dac
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Figure 9 and 10 show the system connection diagram. An evaluation board (AKD4380) is available in order to allow an
easy study on the layout of a surrounding circuit.
Notes:
MS0018-E-01
Reset & Power down
Reset & Power down
- System ground including DSP/µP should be separated from AK4380’s VSS. Both grounds should be connected by one
- When AOUT drives some capacitive load, some resistor should be added in series between AOUT and the load.
- ALL input pins except internal pull-up pin should not be left floating.
- Decoupling capacitor, especially 0.1µF ceramic capacitor for high frequency should be placed as near to VDD and
point at power supply or regulator on system board.
VREF pins as possible.
24bit Audio Data
24bit Audio Data
Master Clock
Master Clock
System Ground
System Ground
Controller
Setting
Micro-
Mode
64fs
64fs
fs
fs
Figure 9. Typical Connection Diagram (Parallel mode)
Figure 10. Typical Connection Diagram (Serial mode)
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
MCLK
BICK
SDTI
LRCK
PDN
SMUTE
DFS
DIF0
MCLK
BICK
SDTI
LRCK
PDN
CSN
CCLK
CDTI
SYSTEM DESIGN
Analog Ground
Analog Ground
AK4380
AK4380
- 18 -
AOUTR
AOUTR
AOUTL
AOUTL
VCOM
VCOM
VREF
VREF
VDD
VDD
VSS
VSS
DZF
DZF
P/S
P/S
16
15
14
13
12
11
10
16
15
14
13
12
11
10
9
9
0.1u
0.1u
10u
10u
+
+
+
+
Analog 5V
Analog 5V
10u
10u
10u
10u
10u
10u
+
+
+
+
Optional External
Mute Circuits
Optional External
Mute Circuits
27k
27k
27k
27k
220
220
220
220
[AK4380]
2000/8
Lch Out
Rch Out
Lch Out
Rch Out