AD9850
C36CRPX
J1
U2
H1
H2
H3
H4
1
74HCT574
J2
J3
J4
RRESET
No. 6 No. 6 No. 6 No. 6
+V
12
13
14
15
16
17
18
19
2
9
8
7
6
5
4
3
2
MOUNTING
D0
D1
D2
D3
D4
D5
D6
D7
8D
7D
6D
5D
4D
3D
2D
1D
8Q
7Q
6Q
5Q
4Q
3Q
2Q
1Q
D3
D2
1
2
3
4
5
6
7
28
27
26
25
D3
D4
D5
D6
D7
D4
D5
D6
D7
BANANA
JACKS
5V
3
HOLES
D2
4
GND
U1
D1
D0
D1
5
AD9850
D0
6
J6
GND
+V
DGND
DVDD
W CLK
FQ UD
DGND 24 GND
23
DAC OUT
TO 50⍀
7
DVDD
RESET 22
+V
R4
50⍀
8
WCLK
FQUD
CLKIN
GND
+V
RESET
9
R5
25⍀
8
21
20
19
18
17
16
15
IOUT
IOUTB
AGND
AVDD
DACBL
VINP
10
11
12
13
14
15
16
CLK
OE
9
CLKIN
AGND
AVDD
11
1
10
11
12
GND
STROBE
R1
3.9k⍀
+V
10mA
R
SET
FFQUD
R
SET
13 QOUTB
14 QOUT
TP1
TP2
TP3
TP4
TP5
VINN
COMPARATOR
INPUTS
GND
GND
TP6
TP7
TP8
17
P
COMPARATOR
OUTPUTS
GND
GND
18
O
R
T
U3
19
R6
1k⍀
74HCT574
20
12
9
+V
1
J5
RRESET
WWCLK
FFQUD
8D
7D
6D
5D
4D
3D
2D
8Q
7Q
6Q
5Q
4Q
3Q
2Q
RESET
21
13
8
7
6
5
4
3
2
R7
1k⍀
CLKIN
WCLK
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
14
R2
50⍀
REMOVE
FQUD
GND
15
WHEN
CHECK
RRESET
USING Y1
16
17
18
19
+5V
14
VCC
XTAL
OSC
8
OUT
1D
1Q
OE
1
Y1
GND
7
CLK
5V
11
R10
2.2k⍀
R9
2.2k⍀
R8
2.2k⍀
R3
2.2k⍀
STROBE
WWCLK
CHECK
RRESET FFQUD WWCLK STROBE
+V
5V
5V
+V
C4
0.1F
C8
0.1F
C2
0.1F
C3
0.1F
C5
0.1F
C10
0.1F
C9
0.1F
C6
10F
C7
10F
STROBE
Figure 15. AD9850/FSPCB Electrical Schematic
COMPONENT LIST
Integrated Circuits
U1
AD9850BRS (28-Lead SSOP)
74HCT574 H-CMOS Octal Flip-Flop
U2, U3
Capacitors
C2 to C5, C8 to C10
C6, C7
0.1 µF Ceramic Chip Capacitor
10 µF Tantalum Chip Capacitor
Resistors
R1
R2, R4
R3, R8, R9, R10
R5
3.9 kΩ Resistor
50 Ω Resistor
2.2 kΩ Resistor
25 Ω Resistor
1 kΩ Resistor
R6, R7
Connectors
J1
J2, J3, J4
J5, J6
36-Pin D Connector
Banana Jack
BNC Connector
REV. H
–15–
ADI [ ADI ]
