AK4122 Datasheet, PDF (49/53 Pages) List of Unclassifed Manufacturers – 24 BIT 96KHZ SRC WITH DIR

ASAHI KASEI
[AK4122]
SYSTEM DESIGN
Figure 29 shows the typical system connection diagram. An evaluation board is available which demonstrates application
circuits, the optimum layout, power supply arrangements and measurement results.
• PORT2, PORT3 : Slave Mode
uP & DSP
Digital Supply
3.0 ~ 3.6V
DSP3
10µ
0.1µ
fso
48 47 46 45 44 43 42 41 40 39 38 37
1 CDTI
2 CDTO
3 TST1
SDTIO 36
BICK2 35
LRCK2 34
DSP2
fsi
4 INT2
5 TST2
6 TST3
7 M/S2
8 M/S3
9 SMUTE
Top View
MCLK2 33
DVDD 32
DVSS 31
SDTI 30
BICK1 29
LRCK1 28
Digital Supply
0.1µ 10µ
3.0 ~ 3.6V
DSP1
fsi
10 TST4
PDN 27
Reset
11 TST5
AVSS 26
12 FILT
470Ω
R 25
12kΩ
2.2n
2.2µ
13 14 15 16 17 18 19 20 21 22 23 24
0.1µ
10µ
Shield Shield Shield Shield Shield
Analog Supply
3.0 ~ 3.6V
S/PDIF
sources
Note:
- AVSS, BVSS and DVSS of the AK4122 should be distributed separately from the ground of external digital
devices (MPU, DSP etc.).
- All digital input pins should not be left floating.
Figure 29. Typical Connection Diagram
MS0267-E-02
- 49 -
2004/07