Function Generator using ICL8038 and XR-2206 - del50005
ICL8038 and XR-2206 can help you build a Function Generator or
Wavform Generator. It is needed along with the Oscilloscope and
Power Supply on the Workbench.
The ICL8038 waveform generator is a monolithic integrated
circuit capable of producing high accuracy sine, square,
triangular, sawtooth and pulse waveforms with a minimum of
external components. The frequency (or repetition rate) can be
selected externally from 0.001Hz to more than 300kHz using
either resistors or capacitors, and frequency modulation and
sweeping can be accomplished with an external voltage.
Use in Phase Locked Loops - Its high frequency stability makes
the ICL8038 an ideal building block for a phase locked loop as
shown in Figure 9. In this application the remaining functional
blocks, the phase detector and the amplifier, can be formed by a
number of available ICs (e.g., MC4344, NE562).
Versatile Waveform Generator
delabs Notes - This was one of my favorite chips. This is of
educational value. It was a pioneer chip a mixed cmos device.
Make it a point to read the Datasheet. Chip may have been
invented 1980 around. This is study material for college. It is
not available in stores. Some EE Engineer or Ham-DIY Enthusiast
may have a few. Borrow and try it out for learning.
Function and Waveform Generators – IC
Science Fiction - Advanced Students can try configuring it
in a Programmable Mixed Chip EDA tool plugin, if someone has
developed that. Try taking a draft output on a semiconductor
laser nano-milling prototype printer with a built in Mems
pico-doper. If that works, lets go foundry! Forgot to tell you,
Sprinkle Gallium Arsenide in the RF Areas, and add Graphene to
Frequency range - 0.95 Hz to 105 KHz in five decade ranges.
Waveforms - Sine, Triangular and Square.
Output amplitude - Adjustable from 10 mV PP. to 10 V PP Output
impedance 50 ohms.
Sine wave Amplitude Flatness +/- 1 dB
Sine wave THD
- Less than or equal to 0.8% from 10 Hz to 10 KHz
- Less than or equal to 2.5% from 1 Hz to 100 KHz
Triangle wave non-linearity
- Less than or equal to 0.5% upto 10 KHz.
- Less than or equal to 1.5% at 100 KHz.
Square wave rise-fall time Less than or equal to 200 ns.
SEMICONDUCTORS - IC1-ICL8038, IC2-LM318, T1-SL100, T2-SK100, D1,
RESISTORS - 1/4 W - 5% R1, R13, R14-10E; R18-22E; R16-47E;
R11-56E; R9-220E; R19-390E; R2-1KE; R6, R8-2.2KE; R17-1.8KE;
R3-R5-4.7KE; R10, R29, R15-3.9KE; R20, R21-39KE; R22-15KE.
PRESETS - VR1, VR3-2.2KE; VR4-470E; VR5-VR7-l00KE;
POTENTIOMETERS - VR2-FF-500E 1 W, VR9-VF-22K 1 W.
CAPACITORS - 30V C1, C7, C8,-0.1 MFD; C2-3.3 MFD; C3-0.33 MFD;
C4-33 KPF; C5-3.3 KPF; C6-330PF; C9-100MFD; C10-22PF; C11,
Panel-Parts - FC-1 POLE 5 WAY SWITCH, SS-2 POLE 3 WAY SWITCH,
VC-1 POLE 4 WAY SWITCH, PCB, KNOBS, 2BNC SOCKETS, E,F IC
Electronics - ICL8038-based Oscillator - The ICL8038 and all
parts around on the lower half of the sheet make up the actual
oscillator which is a modified design based on one of the
application examples in Intersil's data sheet. There is a large
6-stage switch (S1) to select the major frequency and a
logarithmic potentiometer (R2) for minor frequency selection.
A High Quality Function Generator system Using the XR-2206 -
Application Note AN-14
Waveform or function generators capable of producing AM/FM
modulated sine wave outputs find a wide range of applications in
electrical measurement and laboratory instrumentation. This
application note describes the design, construction and the
performance of such a complete function generator system
suitable for laboratory usage or hobbyist applications. An old Datasheet of XR-2206
The entire function generator is comprised of a single XR-2206
monolithic IC and a limited number of passive circuit
components. It provides the engineer, student, or hobbyist with
highly versatile laboratory instrument for waveform generation
at a very small fraction of the cost of conventional function
generators available today.
The basic circuit configuration and the external components
necessary for the high-quality function generator system is
shown in Figure 1. The circuit shown in the figure is designed
to operate with either a 12V single power supply, or with a ±6V
split supplies. For most applications, split-supply operation is
preferred since it results in an output DC level which is nearly
at ground potential.
The circuit configuration of Figure 1 provides three basic
waveforms: sine, triangle and square wave. There are four
overlapping frequency ranges which give an overall frequency
range of 1 Hz to 100 kHz. In each range, the frequency may be
varied over a 100:1 tuning range.
Note - The text above is a ocr of scan. This is from an Old
Application Note of Exar from - "Applications Data Book" June
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