AK4621 AKM [Asahi Kasei Microsystems], AK4621 Datasheet - Page 34

• Manufacturer Part Number: AK4621
• Description: 24-Bit 192kHz Stereo Audio CODEC
• Manufacturer: AKM [Asahi Kasei Microsystems]

Figure 16
as suggestions for peripheral circuitry.
Notes:
MS1258-E-01
- VSS1 and VSS2 must be connected to the same analog ground plane.
- When AOUT+/- drives some capacitive load, some resistance must be added in series between AOUT+/- and
- All digital input pins must not be left floating.
4.75 ∼ 5.25V
Analog Supply
Rch
Input
Buffer
Lch
Input
Buffer
capacitive load.
shows the system connection diagram. An evaluation board (AKD4621) is available for fast evaluation as well
Audio
DSP
10u
+
0.1u
0.1u
+
10u
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
VCOM
AINR +
AINR -
AINL+
AINL-
VREF
VSS1
AVDD
P/S
MCLK
LRCK
BICK
SDTO
SDTI
OVFR/DZFR
Figure 16. Typical Connection Diagram
SYSTEM DESIGN
AK4621
- 34 -
CCLK/CKS1
OVFL/DZFL
CDTI/CKS0
AOUTR+
CSN/DIF
AOUTL+
AOUTR-
AOUTL-
DVDD
SDFIL
TVDD
DEM0
VSS2
DFS0
PDN
16
30
29
28
27
26
25
24
23
22
21
20
19
18
17
0.1u
0.1u
Rch
LPF
Lch
LPF
Setting/
Mode
DVDD ∼ 5.25V
Digital Supply
uP
3.0 ∼ 3.6V
Digital Supply
Rch Out
Lch Out
[AK4621]
2011/01