ak4556 AKM Semiconductor, Inc., ak4556 Datasheet - Page 19

• Manufacturer Part Number: ak4556
• Description: 3v 192khz 24bit ?? Codec
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Figure 10
application circuit, optimum layout, power supply arrangements and measurement results.
Notes:
MS0559-E-00
Analog Supply
(3.0V)
- VSS of the AK4556 should be distributed separately from the ground external digital devices.
- Do not allow digital input pins to float.
- When LOUT/ROUT drives some capacitive load, a 220Ω resistor should be added in series between LOUT/ROUT
and capacitive load. In this case, LOUT/ROUT pins can drive capacitor of 400pF.
shows the system connection diagram. An evaluation board [AKD4556] is available which demonstrates
Mode
Control
Figure 10. System Connection Diagram Example (Mode 0: AK4552 Compatible Mode)
5.1 ohm
+
10u 0.1u
10u
10u
+
10u
0.1u
10
1
2
3
4
5
6
7
8
9
SYSTEM DESIGN
RIN
LIN
VSS
VA
VD
DEM0
DEM1
SDTO
CKS0
CKS1
AK4556
- 19 -
VCOM
ROUT
MCLK
LOUT
LRCK
BCLK
CKS3
CKS2
SDTI
PDN
20
19
18
17
16
15
14
13
12
11
0.1u
+
2.2u
Audio
Controller
Reset
[AK4556]
2006/11