Summary of 1Hz – 2MHz Function Generator with XR2206 using pic microcontoller
This article details a 1Hz to 2MHz function generator kit based on the XR2206 IC, capable of producing sine, square, and triangle waveforms. It features coarse frequency selection via DIP switches and fine-tuning with potentiometers. The kit includes premium components like gold-plated connectors and metal film resistors, designed for high stability and accuracy suitable for bench testing.
Parts used in the 1Hz - 2MHz Function Generator:
- XR2206 - Function Generator IC
- Function Generator PCB
- RCA Gold Plated Connector
- SW1 - 4-DIP Switch
- SW2 – (Sine / Triangle) / Square Switch
- S3 – Sine / Triangle Switch
- 1x 3-PIN Gold Plated Male Header
- 2x 2-PIN Gold Plated Male Header
- P1 - 100K Potentiometer (Frequency – Coarse)
- P2 - 50K Potentiometer (Frequency – Fine)
- P3 - 100K Potentiometer (Amplitude)
- 1x 100uF Audio Capacitor
- 2x 10uF Audio Capacitor
- 2x 100nF Capacitor
- 1x 1nF Capacitor
- 1x 150pF Capacitor
- 3x 6.8K 1% Metal Film Resistor
- 2x 1K 1% Metal Film Resistor
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1Hz – 2MHz Function Generator with XR2206Premium quality XR2206 Function Generator kit capable of producing high quality sine, square and triangle waveforms of high-stability and accuracy. The output waveforms can be both amplitude and frequency modulated. Coarse frequency adjustment is accomplished using 4-DIP switch for the following four frequency ranges; (1) 1Hz-100Hz, (2) 100Hz-20KHz, (3) 20KHz-1MHz, (4) 150KHz-2MHz. Frequency output can be fine tuned using P1 and P2 potentiometers. 1Hz – 2MHz XR2206 Function Generator kit includes premium quality components, including Audio Grade Gold Capacitors, Gold Plated RCA Connector, WIMA Capacitors, 1% Metal Film Resistors and premium quality PCB with red solder mask.
Function Generator Adjustments
P1 – Coarse Frequency Adjustment
P2 – Fine Frequency Adjustment
P3 – Sine / Triangle Wave Amplitude Control (0 – 3V at 9V DC input)
SW1 – Coarse Frequency Adjustment (only one switch must be in ON position at a time)
SW2 – Sine / Square Waveform Selection
S3 – Sine / Triangle Waveform Selection (SW2 must be switched to Sine)
- What voltage supply does the generator require?
The device requires a 9-18V DC input. - How is the coarse frequency adjustment performed?
Coarse frequency adjustment is accomplished using the 4-DIP switch (SW1). - Can the output waveforms be modulated?
Yes, the output waveforms can be both amplitude and frequency modulated. - What is the distortion level for the sine wave at 1kHz?
The distortion is less than 1% at 1kHz. - Which component controls the sine and triangle wave amplitude?
P3, a 100K Potentiometer, controls the sine and triangle wave amplitude. - How many frequency ranges are available with the DIP switch?
There are four frequency ranges available: 1Hz-100Hz, 100Hz-20KHz, 20KHz-1MHz, and 150KHz-2MHz. - What type of capacitors are included in the kit?
The kit includes audio grade gold capacitors and WIMA capacitors. - Can this generator be connected to an LCD display?
Yes, it can be directly connected to a 60MHz Counter kit to measure and display output frequency on an LCD display.
