AK4348 Datasheet, PDF (26/31 Pages) Asahi Kasei Microsystems – 3.3V 192kHz 24-Bit 8-Channel DAC

ASAHI KASEI
[AK4348]
SYSTEM DESIGN
Figure 22 and 23 shows the system connection diagram. An evaluation board (AKD4348) is available which
demonstrates application circuits, the optimum layout, power supply arrangements and measurement results.
Master Clock
64fs
24bit Audio Data
fs
Reset
Micro-
controller
24bit Audio Data
24bit Audio Data
24bit Audio Data
Micro-
controller
Digital Ground
1 MCLK
2 BICK
3 SDTI1
4 LRCK
5 RSTB
6 SMUTE
7 ACKS
8 DIF0
9 SDTI2
10 SDTI3
11 SDTI4
12 DIF1
13 DEM0
10u
+
14 DVDD
15 DVSS
0.1u
DZF1 30
TDM0 29
0.1u 10u
AVDD 28
+
AVSS 27
VCOM 26
+
0.1u 10u
AK4348 ^{LOUT1 25}
MUTE
ROUT1 24
MUTE
Mute Signal
TDM Mode
Analog 3.3V
L1ch Out
R1ch Out
P/S 23
LOUT2 22
ROUT2 21
LOUT3 20
ROUT3 19
LOUT4 18
ROUT4 17
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
L2ch Out
R2ch Out
L3ch Out
R3ch Out
L4ch Out
R4ch Out
DEM1 16
Micro-controller
Digital 3.3V
Analog Ground
Figure 22. Typical Connection Diagram (Parallel Control Mode)
Notes:
- LRCK = fs, BICK = 64fs.
- When LOUT/ROUT drives some capacitive load, some resistor should be added in series between LOUT/ROUT
and capacitive load.
- All input pins except P/S and TDM0 pins should not be left floating.
MS0532-E-00
- 26 -
2006/07