AD9850
C36CRPX
J1
J2
J3
J4
+V
5V
H1 H2 H3 H4
No. 6 No. 6 No. 6 No. 6
U2
BANANA
JACKS
1
74HCT574
RRESET
MOUNTING
HOLES
9
8
7
6
5
4
3
2
12
13
14
15
16
17
18
19
2
200⍀ Z
GND
8Q
7Q
6Q
5Q
4Q
3Q
2Q
1Q
OE
1
8D
7D
6D
5D
4D
3D
2D
1D
D0
D1
D2
D3
D4
D5
D6
D7
42MHz ELLIPTIC
3
LOW-PASS FILTER
4
L2
1008CS
680nH
1
L1
1
2
3
4
5
6
7
8
9
D3
D2
D1
28
D3
D4
D4
1008CS
910nH
5
D2
D1
D5 27 D5
1
2
2
6
U1
AD9850
26
D6
D7
D6
E5
E6
C12
3.3pF
C14
8.2pF
7
J7
BNC
D0
25 D7
D0
8
DGND
DVDD
GND
+V
DGND 24
DVDD 23
GND
+V
9
R4
100k⍀
R6
200⍀
C11
22pF
C13
33pF
10
11
12
13
14
15
16
CLK
11
W CLK
FQ UD
CLKIN
RESET 22 RESET
WCLK
FQUD
CLKIN
GND
+V
R5
100k⍀
C15
22pF
21
IOUT
IOUTB
AGND
AVDD
STROBE
20
R8
100⍀
10 AGND
11 AVDD
19 GND
FFQUD
R1
3.9k⍀
+V
18
R7
200⍀
10mA
12
R
SET
DACBL 17
VINP 16
J6
R
SET
13 QOUTB
14 QOUT
17
P
BNC
VINN 15
O
R
T
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
J8
C1
470pF
BNC
J9
1
E1 E2 E4 E3
J5
5V
CLKIN
R9
2.2k⍀
R10
2.2k⍀
R11
2.2k⍀
R3
2.2k⍀
R2
50⍀
U3
74HCT574
REMOVE
WHEN
USING Y1
9
12
13
14
15
16
17
18
19
RRESET FFQUD WWCLK STROBE
RRESET
8D
7D
6D
5D
4D
3D
2D
1D
8Q
7Q
6Q
5Q
4Q
3Q
2Q
1Q
RESET
WCLK
8
7
6
5
4
3
2
5V
14
WWCLK
FFQUD
FQUD
VCC
XTAL
OSC
8
CHECK
RRESET
OUT
Y1
GND
7
WWCLK
CHECK
+V
5V
CLK OE
+V
5V
C3
0.1F
C5
0.1F
C2
0.1F
C4
0.1F
C8
0.1F
C9
0.1F
C10
0.1F
11
1
C6
10F
C7
10F
STROBE
STROBE
Figure 17. AD9850/CGPCB Electrical Schematic
COMPONENT LIST
Integrated Circuits
U1
Resistors
R1
R2
R3, R9, R10, R11
R4, R5
R6, R7
3.9 kΩ Resistor
50 Ω Resistor
2.2 kΩ Resistor
100 kΩ Resistor
200 Ω Resistor
100 Ω Resistor
AD9850BRS (28-Lead SSOP)
74HCT574 H-CMOS Octal Flip-Flop
U2, U3
Capacitors
C1
C2 to C5, C8 to C10
C6, C7
C11
C12
C13
C14
C15
470 pF Ceramic Chip Capacitor
0.1 µF Ceramic Chip Capacitor
10 µF Tantalum Chip Capacitor
22 pF Ceramic Chip Capacitor
3.3 pF Ceramic Chip Capacitor
33 pF Ceramic Chip Capacitor
8.2 pF Ceramic Chip Capacitor
22 pF Ceramic Chip Capacitor
R8
Connectors
J2, J3, J4
J5 to J9
Banana Jack
BNC Connector
Inductors
L1
L2
910 nH Surface Mount
680 nH Surface Mount
REV. H
–17–
ADI [ ADI ]
