AK4537 Datasheet, PDF (59/76 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Stereo CODEC with MIC/HP/SPK-AMP

ASAHI KASEI
[AK4537]
SYSTEM DESIGN
Figure 47 shows the system connection diagram for the AK4537. An evaluation board [AKD4537] is available which
demonstrates the optimum layout, power supply arrangements and measurement results.
2.2µ
Analog Supply
2.4 ~ 3.6V
10µ
52
1µ 1µ
1µ
2.2k
2.2k
1µ
0.1µ
0.1µ
1 MICOUT
L
2 MICOUT
R
3 EXT/MCR
4 MPE
5 MPI
6 INT/
MICL
7 VCOM
8 AVSS
9 AVDD
1µ 1µ 1µ 1µ 1µ
C C C C ^1µ
R R RRR
51 50 49 48 47 46 45 44 43 42 41 40
Top View
MUTET 39
HPL 38
HPR 37
HVSS 36
HVDD 35
SPN 34
SPP 33
M/S 32
XTI/MCKI 31
10Ω
0.22µ
16Ω
1µ
6.8Ω _47µ
6.8Ω
16Ω
0.22µ
10Ω
0.1µ 10µ
Analog Supply
2.4 ~ 3.6V
8Ω
C
10µ 0.1µ
10 PVDD
11 PVSS
12 VCOC
10kΩ
4.7n
13 NC
XTO 30
DVSS 29
DVDD 28
NC 27
C
0.1µ 10µ
10
14 15 16 17 18 19 20 21 22 23 24 25 26
Reset
DSP and uP
Notes:
- AVSS, DVSS, PVSS and HVSS of the AK4537 should be distributed separately from the ground of external
controllers.
- Values of R and C in Figure 47 should depend on system.
- All input pins should not be left floating.
Figure 47. Typical Connection Diagram
MS0202-E-04
- 59 -
2005/04