AK4955 Datasheet, PDF (97/117 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP/ LDO & DSP

[AK4955]
SYSTEM DESIGN
Figure 75 ~ Figure 77 show the system connection diagram. An evaluation board (AKD4955) is available for fast
evaluation as well as suggestions for peripheral circuitry.
Digital
Ground
Analog
Ground
0.1u
Top View
MCKI
SDTI
RIN1
LIN1
SVDD
SPN
+
10u
Analog
2.7 ∼ 5.5V
+
0.1u
10u
Analog
2.7 ∼ 5.5V
Digital
1.6 ∼ 2.0V
0.1u
Digital
0.1u
DVDD -0.2 or 1.6
~ 3.6V
BICK
LRCK
ROUT
LVDD
SPP
VSS3
VSS2
SDTO
DVDD
TVDD
LOUT
RIN2
AK4955
MIN
LIN2
VSS1
VCOM
MPWR
REGFIL
MCKO
CDTIO
VOUT
I²C
AVDD
VSS1
CCLK
CSN
PDN
VIN
VSS1
PVEE
2.2u
0.1u
2.2u
2.2u
10u ⁺
Analog
2.7 ∼ 3.6V
Figure 75. Power Supplies Connection Diagram
Notes:
- VSS1, VSS2, and VSS3 of the AK4955 must be distributed separately from the ground of external controllers.
MS1343-E-00
- 97 -
2011/12