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AD9831AST Datasheet(PDF) 14 Page - Analog Devices

Part # AD9831AST
Description  CMOS Complete DDS
PDF  16 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD9831AST Datasheet(HTML) 14 Page - Analog Devices

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AD9831
–14–
REV. A
C15
0.1µF
LATCH
DVDD
22
31
CK
VDD
U3
74HC574
D7
D0
C14
0.1µF
LOAD
DVDD
14
21
D15
D8
CK
VDD
U2
74HC574
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
LATCH
D0
D1
D2
D3
D4
D5
D6
D7
LOAD
WR
RESET
WR
RESET
J1
PC
INTERFACE
D7
D0
LATCH
LOAD
32
34
R3
10k
Ω
R1
10k
Ω
R2
10k
Ω
WR
RESET
8
35
WR
RESET
12
11
10
7
3
PSEL1
FSELECT
MCLK
SLEEP
DVDD
SW
LK1
LK2
LK3
PSEL1
PSEL0
FSELECT
AVDD
DVDD
C10
10µF
C9
0.1µF
C11
0.1µF
C12
10µF
J2
J3
MCLK
DGND
AGND
6, 13, 29
1, 36, 46
MCLK
DVDD
LK4
COMP
REFIN
REFOUT
FSADJUST
IOUT
39
IOUT
R6
300
Ω
DVDD
4, 5, 9, 25
AVDD
38, 43, 47
C1, C2, C3
0.1µF
DVDD
C4, C5, C6
0.1µF
AVDD
AD9831
U4
AVDD
42
C7
10nF
C8
10nF
41
2
LK5
REFIN
R5
3.9k
Ω
40
XTAL1
A2
A0
PSEL0
C13
0.1µF
DVDD
U1
DVDD
DGND
OUT
R4
50
Ω
D7
D0
D15
D8
Figure 24. AD9831 Evaluation Board Layout
COMPONENT LIST
Integrated Circuits
XTAL1
OSC XTAL 25 MHz
U2, U3
74HC574 Latches
U4
AD9831 (48-Pin TQFP)
Capacitors
C1–C6
0.1
µF Ceramic Chip Capacitor
C7, C8
10 nF Ceramic Capacitor
C9, C11, C13–C15
0.1
µF Ceramic Capacitor
C10, C12
10
µF Tantalum Capacitor
Resistors
R1–R3
10 k
Ω Resistor
R4
50
Ω Resistor
R5
3.9 k
Ω Resistor
R6
300
Ω Resistor
Links
LK1–LK4
Three Pin Link
LK5
Two Pin Link
Switch
SW
End Stackable Switch (SDC
Double Throw)
Sockets
MCLK, PSEL0,
Sub-Miniature BNC Connector
PSEL1, FSELECT,
IOUT, REFIN
Connectors
J1
36-Pin Edge Connector
J2, J3
PCB Mounting Terminal Block



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