參數(shù)資料
型號(hào): AS1521-T
廠商: AUSTRIAMICROSYSTEMS AG
元件分類: ADC
英文描述: 10-Bit, 8-Ch, 300ksps, ADC; Package Type: TSSOP-20
封裝: TSSOP-20
文件頁(yè)數(shù): 24/29頁(yè)
文件大?。?/td> 1043K
代理商: AS1521-T
www.austriamicrosystems.com
Revision 1.00
24 - 29
AS1520/AS1521
Data Sheet
- Application Information
Figure 33. Operational Diagram
QSPI Interface
The AS1520/AS1521 can interface with QSPI using the circuit in
Figure 34
(f
SCLK
= 4.0MHz, CPOL = 0, CPHA = 0).
This QSPI circuit can be programmed to do a conversion on each of the eight channels. The result is stored in memory
without affecting CPU performance, since QSPI incorporates a micro-sequencer.
Figure 34. QSPI Interface Connections
+2.5V
Analog
Inputs
0.1μF
12
REFADJ
20
V
DD1
19
V
DD2
10
V
DD3
4.7μF
1
CH0
13
GND
17
CSN
18
SCLK
16
DIN
14
DOUT
15
SSTRB
CPU
V
DD
I/O
SCK (SK)
MOSI (SO)
MISO (SI)
V
SS
0.1μF
+3 to +5V
11
REF
AS1520/
AS1521
.
.
.
8
CH7
9
COM
10μF
+2.5V
Analog
Inputs
0.1μF
12
REFADJ
11
REF
4.7μF
1
CH0
8
CH7
13
GND
14
DOUT
15
SSTRB
CPU
PCSO
SCK
MOSI
MISO
GND
0.1μF
17
CSN
18
SCLK
16
DIN
+
10μF
Power
Supplies
+3 or
+5V
+3 or
+5V
AS1520/
AS1521
20
V
DD1
19
V
DD2
10
V
DD3
.
.
.
9
COM
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