XR-2206 Datasheet, PDF (9/16 Pages) Exar Corporation – Monolithic Function Generator

XR-2206
V_CC
1mF
F= ¹
RC
2M R₁
1
5
C
6
9
7
1K ⁸
R
4
Mult.
VCO
And
Sine
Shaper
Symmetry Adjust
16
25K
15
14
R_B
S₁ Closed For Sinewave
13 ^S1
R_A
Current
Switches
10 12
+
1mF
+1
3
R₃
50K
2
11
XR-2206
500
10K
Triangle Or
Sine Wave Output
Square Wave
Output
+
V_CC
10mF
V_CC
5.1K 5.1K
Figure 12. Circuit for Sine Wave Generation with Minimum Harmonic Distortion.
(R₃ Determines Output Swing - See Figure 3)
Rev. 1.03
V_CC
>2V F1
<1V F2
FSK Input
1
5
C
6
9
R_{1 7}
R₂ 8
VCO
Current
Switches
1mF
4
Mult.
And
Sine
Shaper
+1
16
15
14
13 ²⁰⁰
2
11
F1=1/R1C
F2=1/R2C
10 12
+
1mF
3
R₃
50K
XR-2206
+
10mF
V_CC
5.1K
5.1K
Figure 13. Sinusoidal FSK Generator
FSK Output
9