AK5373 Datasheet, PDF (49/53 Pages) Asahi Kasei Microsystems – 24-bit Stereo ADC with USB Interface

[AK5373]
SYSTEM DESIGN
Figure 21 shows the system connection diagram. An evaluation board (AKD5373) is available for fast evaluation as well
as suggestions for peripheral circuitry.
To Host
+5V
USB
D+ D-
Regulator
+3.3V
10u 0.1u
0.1u
C
C
X’ tal =2 4MH z
Rd
1 .5k
18
18
R-ch
Mi c ro phon e
L-ch
37 NC
38 ATIO
39 VREF
4.7u 0.1u
40 VCOM
4.7u 0.1u
41 MPWR
10u _0.1u
42 AVDD
43 NC
1u
44 VSS3
45 MICRN
46 MICRP
1u
47 NC
48 NC
AK5373EQ
Top View
1u
1u
10 0k
3 300p
MUTE SW
VSS2 24
NC 23
DVDD 22
0.1u 10u
TESTM2 21
CSN 20
SK 19
EPAO 18
EPAI 17
NC 16
VSS1 15
NC 14
TESTM1 13
5 6k
3 300p
EEP-
ROM
Notes:
- “C” and “Rd” values are dependent on the crystal. When the 24MHz crystal oscillator is used (CKM pin =
“H”), AT-41-24.000M-LN-N-0005 (Nihon Dempa Kogyo) or HC49SFNB24000H0PESZ1 (Kyocera) is
recommended. When the 16MHz crystal oscillator is used (CKM pin = “L”), AT-41-16.000M-LN-N-0005
(Nihon Dempa Kogyo) or HC49SFNB16000H0PESZ1 (Kyocera) is recommended.
- VSS1-3 must be connected the same ground plane.
- All digital input pins must not be left floating.
Figure 21. System Connection Diagram
MS1202-E-00
- 49 -
2010/06