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XR2209 Datasheet

  • XR2209

  • Voltage-Controlled Oscillator

  • 20頁(yè)

  • EXAR   EXAR

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XR-2209
...the analog plus company
TM
Voltage-Controlled
Oscillator
June 1997鈥?
FEATURES
D
Excellent Temperature Stability (20ppm/擄C)
D
Linear Frequency Sweep
D
Wide Sweep Range (1000:1 Minimum)
D
Wide Supply Voltage Range (+4V to +13V)
D
Low Supply Sensitivity (0.1% /V)
D
Wide Frequency Range (0.01Hz to 1MHz)
D
Simultaneous Triangle and Squarewave Outputs
GENERAL DESCRIPTION
The XR-2209 is a monolithic voltage-controlled oscillator
(VCO) integrated circuit featuring excellent frequency
stability and a wide tuning range. The circuit provides
simultaneous triangle and squarewave outputs over a
frequency range of 0.01Hz to 1MHz. It is ideally suited for
FM, FSK, and sweep or tone generation, as well as for
APPLICATIONS
D
Voltage and Current-to-Frequency Conversion
D
Stable Phase-Locked Loop
D
Waveform Generation
Triangle, Sawtooth, Pulse, Squarewave
D
FM and Sweep Generation
phase-locked loop applications.
The oscillator of the XR-2209 has a typical drift
specification of 20ppm/擄C. The oscillator frequency can
be linearly swept over a 1000:1 range with an external
control voltage.
ORDERING INFORMATION
Part No.
XR-2209CN
XR-2209M
XR-2209CP
Package
8 Lead 300 Mil CDIP
8 Lead 300 Mil CDIP
8 Lead 300 Mil PDIP
Operating
Temperature Range
0擄 to +70擄C
-55擄C to +125擄C
0擄C to +70擄C
BLOCK DIAGRAM
V
CC
1
2
VCO
C2
3
A2
6
Timing
Resistor
R
4
V
EE
BIAS
5
A1
8
7
TWO
SWO
Triangle Wave Out
Square Wave Out
Timing
Capacitor
C1
Figure 1. XR-2209 Block Diagram
Rev. 2.02
E1975
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538
z
1
(510) 688-7000
z
FAX (510) 688-7017

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