參數(shù)資料
型號(hào): AKD5394A
廠商: Asahi Kasei Microsystems Co.,Ltd
英文描述: Super High Performance 192kHz 24-Bit ADC
中文描述: 超高性能192kHz的24位ADC
文件頁(yè)數(shù): 17/24頁(yè)
文件大?。?/td> 174K
代理商: AKD5394A
ASAHI KASEI
[AK5394A]
MS0137-E-01
2002/07
- 17 -
SYSTEM
DESIGN
Figure 7 and 8 show the system connection diagram. An evaluation board [AKD5394A] is available which demonstrates
the optimum layout, power supply arrangements and measurement results.
VREFL+
1
VREFL-
2
VCOML
3
AINL+
4
AINL-
5
ZCAL
6
VD
7
DGND
8
CAL
9
RSTN
10
SMODE2
11
SMODE1
12
VREFR+
28
VREFR-
27
VCOMR
26
AINR+
25
AINR-
24
VA
23
AGND
22
BGND
21
DFS1
20
HPFE
19
DFS0
18
MCLK
17
0.22u
C
+
AK5394A
13
14
16
15
LRCK
SCLK
FSYNC
SDATA
0.22u
Lch+
+3.3~5V
Digital
Rch+
Rch-
0.22u
Reset &
Cal Control
10u
+
0.1u
System
Controller
Mode
Select
+5V
Analog
+
0.1u
10u
0.22u
C
Lch-
fs
Analog Ground
System Ground
+
C
+
+ C
Figure 7. Typical Connection Diagram
Notes:
- LRCK = fs, SCLK = 64fs.
- Power lines of VA and VD should be distributed separately from the point with low impedance of regulator etc.
- AGND, BGND and DGND must be connected to the same analog ground plane.
- All digital input pins should not be left floating.
- Refer Table 4 and Figure 12 about C.
Analog Ground
Digital Ground
System
Controller
VREFL+
1
VREFL-
2
VCOML
3
AINL+
4
AINL-
5
ZCAL
6
VD
7
DGND
8
CAL
9
RSTN
10
SMODE
11
MCKS
12
VREFR+
28
VREFR-
27
VCOMR
26
AINR+
25
AINR-
24
VA
23
AGND
22
BGND
21
DFS1
20
HPFE
19
DFS0
18
MCLK
AK5394A
17
13
14
16
15
LRCK
SCLK
FSYNC
SDATA
Figure 8 Ground layout
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