
XR-8038A
Precision Waveform
...the analog plus company
TM
Generator
Rev. 2.01
1992
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 (510) 668-7000 FAX (510) 668-7017
1
June 1997-3
FEATURES
Low Frequency Drift, 50ppm/
°
C, Typical
Simultaneous Sine, Triangle, and Square Wave
Outputs
Low Sine Wave Distortion - THD
1%
High FM and Triangle Linearity
Wide Frequency Range 0.001Hz to 200KHz
Variable Duty Cycle, 2% to 98%
Low Distortion Variation with Temperature
APPLICATIONS
Precision Waveform Generation
Sweep and FM Generation
Tone Generation
Instrumentation and Test Equipment Design
Precision PLL Design
GENERAL DESCRIPTION
The XR-8038A is a precision waveform generator IC
capable of producing sine, square, triangular, sawtooth,
and pulse waveforms, with a minimum number of external
components and adjustments. The XR-8038A allows the
elimination of the external distortion adjusting resistor
which greatly improves the temperature drift of distortion,
as well as lowering external parts count. Its operating
frequency can be selected over eight decades of
frequency, from 0.001Hz to 200kHz, by the choice of
external R-C components. The frequency of oscillation is
highly stable over a wide range of temperature and supply
voltage changes. Both full frequency sweeping as well as
smaller frequency variations (FM) can be accomplished
with an external control voltage. Each of the three basic
waveform outputs, (i.e., sine, triangle and square) are
simultaneously available from independent output
terminals.
The XR-8038A monolithic waveform generator uses
advanced processing technology and Schottky-barrier
diodes to enhance its frequency performance.
ORDERING INFORMATION
Part No.
XR-8038ACP
Package
Operating
Temperature Range
0
°
C to 70
°
C
14 Lead 300 mil PDIP