XR2206D EXAR [Exar Corporation], XR2206D Datasheet - Page 9

• Manufacturer Part Number: XR2206D
• Description: Monolithic Function Generator
• Manufacturer: EXAR [Exar Corporation]

Rev. 1.03
Figure 12. Circuit for Sine Wave Generation with Minimum Harmonic Distortion.
<1V
>2V
FSK Input
F =
2M
RC
1
R
F
F
1
2
1
R
F1=1/R1C
F2=1/R2C
(R
1K
3
Determines Output Swing - See Figure 3 )
C
1
8
Figure 13. Sinusoidal FSK Generator
6
9
7
5
R
R
1
2
V
CC
C
Switches
VCO
Current
1
5
6
9
7
8
V
+
1
Switches
CC
0
VCO
Current
5.1K
1 F
V
CC
12
4
+
10 12
Shaper
5.1K
Mult.
Sine
1 F
And
V
9
3
CC
1 F
50K
R
5.1K
4
3
Shaper
Mult.
Sine
And
+1
3
5.1K
50K
1 F
R
+
3
10 F
XR-2206
16
15
14
+1
13
11
2
+
25K
Symmetry Adjust
S
XR-2206
10 F
1
11
16
15
14
13
2
V
500
CC
R
B
200
R
10K
A
S
1
Triangle Or
Sine Wave Output
Square Wave
Output
Closed For Sinewave
FSK Output
XR-2206