XR-2207 Datasheet, PDF (14/24 Pages) Exar Corporation – Voltage-Controlled Oscillator

XR-2207
ƪ ƫ f
+
1
CR3
1
*
VCR3
RCV-
V_CC
CB ^VCC
C
12
3
V+ C1
C2
8A
9B
XR-2207
10 _GND
13
SWO
TWO ¹⁴
BIAS ¹¹
R1 R2 R3 R4 V-
4 5 6 7 12
IT
4.7K
Square Wave
Output
Triangle Wave
Output
V_EE
IO
IC
CB
CB = Bypass Cap
R3 R_C
V_{EE VC}
V_C
Sweep or FM input
Figure 15. Frequency Sweep Operation, Split Supply
ƪ ƫ f
+
1
CR3
1
*
VCR3
RCV-
V_CC
C
CB
V_CC
4.7K
12
3
V_CC
8
V+ C1
A
C2
9
B
XR-2207
10 _GND
13
SWO
TWO ¹⁴
BIAS ¹¹
Square Wave
Output
Triangle Wave
Output
R1 R2 R3 R4 V-
4 5 6 7 12
V_EE
IO
IC
CB
CB = Bypass Cap
R3 R_C
Rev. 2.02
V_EE V_C
V_C
Sweep or FM input
Figure 16. Alternate Frequency Sweep Operation, Split Supply
14