Xr2206 Pin Diagram. Xr2206 function generator ic function generator pcb rca gold plated connector sw1 4 dip switch sw2 sine triangle square switch sw2 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. Pin 1 is at the top.
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I used a 10 μf tantalum to pin 5 and r 1 m and found a period of 8 2 s timing 10 oscillations with a stopwatch. As there is no mention of any other construction i can only assume that you take the four short screws and put the nuts on the bottom of the board like the pictures shown below. This vco drives an open collector transistor of which the collector is available on pin 11.
Pin 1 is at the top.
The xr2206 function generator circuit sine triangle square waveform generator. Double check you ve put it in the correct way round. 2for maximum amplitude stability r 3 should be a positive temperature coefficient resistor. The figure below shows the circuit diagram recommended by exar around the xr2206cp.
