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AS1531 Fiches technique(PDF) 24 Page - ams AG

No de pièce AS1531
Description  12-Bit, Single-Supply, Low-Power, 400/300ksps, 8-Channel A/D Converters
PDF  29 Pages
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Fabricant  AMSCO [ams AG]
Site Internet  http://www.ams.com
Logo AMSCO - ams AG

AS1531 Fiches technique(HTML) 24 Page - ams AG

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Revision 1.02
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AS1530/AS1531
Data Sheet - Ap p lica tio n In fo r m a tio n
Figure 33. Operational Diagram
QSPI Interface
The AS1530/AS1531 can interface with QSPI using the circuit in Figure 34 (fSCLK = 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
VDD1
4.7µF
1
CH0
19
VDD2
13
GND
17
CSN
14
DOUT
15
SSTRB
CPU
VDD
I/O
18
SCLK
16
DIN
SCK (SK)
MOSI (SO)
MISO (SI)
VSS
0.1µF
+3 to +5V
11
REF
AS1530/
AS1531
10
VDD3
.
.
.
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
16
DIN
18
SCLK
+
10µF
Power
Supplies
+3 or
+5V
+3 or
+5V
AS1530/
AS1531
20
VDD1
19
VDD2
10
VDD3
.
.
.
9
COM



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