
 4digit counter based frequency
display – Maximum error ONE LSB
 Square, sine and triangular
output upto 2 MHz
 IC based circuit – high
stability, low distortion
 Regulated power supply
Introduction
This
is an economically priced signal source for a wide variety
of applications in electronics, communication and control
systems laboratories. The IC used is a high frequency function
generator that produces low distortion sine, triangular, sawtooth
and square waveforms from frequencies less than a Hz to 20MHz.
A minimal of external components are needed which make the
unit very reliable and robust. The desired output waveform
is selected by logic control and may therefore be done electronically
as well.
Basic
principle of function generation used is relaxation oscillation
with periodic charging and discharging of a capacitor through
constant current source. The charging/discharging currents
are accurately controllable and the associated circuits support
high frequencies very well. A sine shaping circuit converts
the triangular waveform to sine wave of constant amplitude.
The sine wave is useful for frequency response studies of
amplifiers, filters and other electrical systems, while the
square wave finds applications in transient response studies.
Triangular wave is a standard input signal for the study of
steady state error in feedback control systems. All power
supplies are IC regulated.
Features
& Specifications
Waveforms

Square/
Sine/ Triangular (switch selectable) 
Frequency 
10Hz2MHz
in five ranges 
Amplitude 
Square
03V (pp) Triangular 03V (pp) Sine 03V (pp) 
Output
Impedance 
50W 
Frequency
Readout 
4digit,
counter based, automatic decimal point 
Power Supply 
220V±10%,
50Hz 

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