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XR2207

Exar Corporation
Part Number XR2207
Manufacturer Exar Corporation
Description Voltage-Controlled Oscillator
Published Apr 16, 2005
Detailed Description XR-2207 ...the analog plus company TM Voltage-Controlled Oscillator June 1997–3 FEATURES D Excellent Temperature Stabi...
Datasheet PDF File XR2207 PDF File

XR2207
XR2207

Overview
XR-2207 .
.
.
the analog plus company TM Voltage-Controlled Oscillator June 1997–3 FEATURES D Excellent Temperature Stability (20ppm/°C) D Linear Frequency Sweep D Adjustable Duty Cycle (0.
1% to 99.
9%) D Two or Four Level FSK Capability D Wide Sweep Range (1000:1 Minimum) D Logic Compatible Input and Output Levels 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-2207 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 phase-locked loop applications.
ORDERING INFORMATION Part No.
XR-2207M XR-2207CP XR-2207D XR-2207ID APPLICATIONS D FSK Generation D Voltage and Current-to-Frequency Conversion D Stable Phase-Locked Loop D Waveform Generation – Triangle, Sawtooth, Pulse, Squarewave D FM and Sweep Generation The XR-2207 has a typical drift specification of 20ppm/°C.
The oscillator frequency can be linearly swept over a 1000:1 range with an external control voltage; and the duty cycle of both the triangle and the squarewave outputs can be varied from 0.
1% to 99.
9% to generate stable pulse and sawtooth waveforms.
Package 14 Lead 300 Mil CDIP 14 Lead 300 Mil PDIP 16 Lead 300 Mil JEDEC SOIC 16 Lead 300 Mil JEDEC SOIC Operating Temperature Range -55°C to +125°C 0°C to +70°C 0°C to +70°C -40°C to +85°C BLOCK DIAGRAM C1 C1 R1 R2 R3 R4 2 3 Timing Capacitor 4 5 6 7 Î Î Î VCC GND 1 10 BIAS 11 A1 14 13 A2 12 TWO SWO VEE BKI2 BKI1 Triangle Wave Out Square Wave Out VCO Timing Resistors Current Switches 9 8 Binary Keying Inputs Figure 1.
Block Diagram Rev.
2.
02 E1975 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z FAX (510) 668-7017 1 XR...


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