AD9850BRSZ Datasheet, PDF (15/20 Pages) Analog Devices – CMOS, 125 MHz Complete DDS Synthesizer

AD9850
C36CRPX
J1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
P
O ¹⁸
R ₁₉
T
20
1 ₂₁
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
RRESET
FFQUD
WWCLK
CHECK
STROBE
U2
74HCT574
9
8D
8
7D
7
6D
6
5D
5
4D
4
3D
3
2D
2
1D
12
8Q
D0
13
7Q
D1
14
6Q
D2
15
5Q
D3
16
4Q
D4
17
3Q
D5
18
2Q
D6
19
1Q
D7
CLK OE
11 1
STROBE
J2
BANANA ^J3
JACKS
J4
10mA
R_SET
H1 H2 H3 H4
+V
D3 1 D3
5V
D2 _{2 D2}
D4 28 D4
D5 27 D5
No. 6 No. 6 No. 6 No. 6
MOUNTING
HOLES
GND
D1
3
D1
U1
AD9850
D6
26
D6
D0 4 _D0
D7 25 D7
GND _{5 DGND DGND 24 GND}
+V 6 _{DVDD DVDD 23 +V}
WCLK 7 _{W CLK RESET 22 RESET}
R4
50⍀
J6
DAC OUT
TO 50⍀
FQUD 8 _{FQ UD IOUT 21}
CLKIN 9 _{CLKIN IOUTB 20}
R5
25⍀
GND 10 _{AGND AGND 19 GND}
R1
3.9k⍀
+V 11 AVDD
AVDD 18
+V
12 R_SET DACBL 17
13 QOUTB VINP 16
TP1
TP5
COMPARATOR ^TP6
OUTPUTS _TP7
14 QOUT
GND
VINN 15
GND
GND
TP2 _COMPARATOR
TP3 INPUTS
TP4
RRESET
WWCLK
FFQUD
RRESET
U3
74HCT574
9
8D
8
7D
7
6D
6
5D
5
4D
4
3D
3
2D
2
1D
12
8Q
13
7Q
14
6Q
15
5Q
16
4Q
17
3Q
18
2Q
19
1Q
CLK OE
11 1
RESET
WCLK
FQUD
CHECK
STROBE
TP8
GND
CLKIN
REMOVE
WHEN
USING Y1
R2
50⍀
+5V
14
XTAL
VCC
8
OSC ^Y1
OUT
GND
7
+V
R6
1k⍀
J5
+V
R7
1k⍀
GND
5V
R10
2.2k⍀
R9
2.2k⍀
R8
2.2k⍀
R3
2.2k⍀
5V ^{RRESET FFQUD WWCLK STROBE}
+V
5V
C6
C7
10␮F 10␮F
C2
C3
C4
C5
0.1␮F 0.1␮F 0.1␮F 0.1␮F
C8
C9
C10
0.1␮F 0.1␮F 0.1␮F
Figure 15. AD9850/FSPCB Electrical Schematic
COMPONENT LIST
Integrated Circuits
U1
U2, U3
Capacitors
C2 to C5, C8 to C10
C6, C7
Resistors
R1
R2, R4
R3, R8, R9, R10
R5
R6, R7
Connectors
J1
J2, J3, J4
J5, J6
AD9850BRS (28-Lead SSOP)
74HCT574 H-CMOS Octal Flip-Flop
0.1 µF Ceramic Chip Capacitor
10 µF Tantalum Chip Capacitor
3.9 kΩ Resistor
50 Ω Resistor
2.2 kΩ Resistor
25 Ω Resistor
1 kΩ Resistor
36-Pin D Connector
Banana Jack
BNC Connector
REV. H
–15–