ak4620b AKM Semiconductor, Inc., ak4620b Datasheet - Page 34

• Manufacturer Part Number: ak4620b
• Description: 24-bit 192khz Audio Codec With Ipga
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Figure 14
demonstrates application circuits, the optimum layout, power supply arrangements and measurement results.
Notes:
MS0401-E-00
4.75 ∼ 5.25V
Analog Supply
- AGND and DGND must be connected to the same analog ground plane.
- When AOUT+/- drives some capacitive load, some resistance should be added in series between AOUT+/- and
- All digital input pins must not be left floating.
- When OVFR/DZFR pin and OVFL/DZFL pin are used, a 330Ω resistor and a 33pF capacitor should be added to
Rch
Input
Buffer
Lch
Input
Buffer
capacitive load.
OVFR/DZFR pin and OVFL/DZFL pin to avoid the coupling from SDTO pin.
&
Audio
DSP
Figure 15
10u
+
shows the system connection diagram. An evaluation board (AKD4620B) is available, which
0.1u
0.1u
+
Figure 14. Typical Connection Diagram (Differential mode)
10u
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
VCOM
AINR+
AINR-
AINL+
AINL-
VREF
AGND
VA
P/S
MCLK
LRCK
BICK
SDTO
SDTI
OVFR/DZFR
SYSTEM DESIGN
AK4620B
- 34 -
CCLK/CKS1
OVFL/DZFL
CDTI/CKS0
ADMODE
AOUTR+
CSN/DIF
AOUTL+
AOUTR-
AOUTL-
DGND
DEM0
DFS0
PDN
VD
VT
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
330
33p
0.1u
330
33p
0.1u
Rch
LPF
Lch
LPF
Setting/
Mode
3.0 ∼ 5.25V
Digital Supply
uP
3.0 ∼ 3.6V
Digital Supply
Rch Out
Lch Out
[AK4620B]
2005/07