The XR is a monolithic function generator integrated circuit capable of XR 2. Rev. 11 SYNCO. VCO. 4. VCC. GND. BIAS. Timing. Capacitor. 5 .. Datasheet February Reproduction, in part or. XR datasheet, XR pdf, XR data sheet, datasheet, data sheet, pdf, Exar, Monolithic Function Generator. The XR is a monolithic function generator integrated circuit capable of producing high quality sine, square, triangle, ramp, and pulse waveforms.

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Xr 2206 Datasheet Pdf

Monolithic Function Generator, XR datasheet, XR circuit, XR data sheet: EXAR, alldatasheet, datasheet, Datasheet search site for Electronic. XR Datasheet PDF Download - Monolithic Function Generator, XR data sheet. XR Datasheet PDF Download - XR the analog plus company TM Monolithic Function Generator June FEATURES D Low-Sine Wave.

The output waveforms can be both amplitude and frequency modulated by an external voltage. Frequency of operation can be selected externally over a range of 0. The circuit is ideally suited for communications, instrumentation, and function generator applications requiring sinusoidal tone, AM, FM, or FSK generation. The oscillator frequency can be linearly swept over a Test Circuit of Figure 2. S1 open for triangle, closed for sine wave. Bold face parameters are covered by production test and guaranteed over operating temperature range. Output amplitude is directly proportional to the resistance, R3 , on Pin 3. See Figure 3. For maximum amplitude stability, R3 should be a positive temperature coefficient resistor. Total Timing Current.

With two timing pins, two discrete voltage-controlled oscillator VCO , an analog multiplier output frequencies can be independently produced for and sine-shaper; a unity gain buffer amplifier; and a set of FSK generation applications by using the FSK input current switches.

This input controls the current switches which The VCO produces an output frequency proportional to select one of the timing resistor currents, and routes it to an input current, which is set by a resistor from the timing the VCO.

(PDF) XR2206 Datasheet download

Output Amplitude Figure 4. R versus Oscillation Frequency. Figure 6. Trimmed Distortion versus Figure 8. Sine Wave Distortion versus Timing Resistor. Operating Frequency with Timing Capacitors Varied.

Frequency Drift versus Figure Circuit Connection for Frequency Sweep. See Figure 3 for Choice of R3 Rev.

Circuit for Pulse and Ramp Generation. Depending on the Without External Adjustment polarity of the logic signal at Pin 9, either one or the other of these timing resistors is activated.

XR-2206 Datasheet

The potentiometer, R1 is activated. Similarly, if the voltage level at Pin 9 is R1 at Pin 7, provides the desired frequency tuning. For split-supply operation, the keying voltage at Pin 9 is The circuit of Figure 11 can be converted to split-supply referenced to V-.

The dc level at the output Pin 2 is approximately the same as the dc bias at Pin 3. With the switch open, it is a triangle wave.

Unfortunately, the output voltages of the sine and triangle are not the same. The maximum sine wave is about 6 volts peak-peak and the triangle wave is about twice that. In my circuit, I've added two pre-set trimmers - R15 and R16 - to adjust the waveforms so they're the same voltage.

When SW2b is open, the output is triangle and R16 becomes the 'active' pre-set. This image shows the effect of having the sinewave's Amplitude preset trimmer set too high.

Arduino - XR Function Generator

In practice, the amount of adjustment is fairly limited so I've used R14 as a pre-set trimmer instead. Set frequency jumper to C5 nF.

Connect 12V power supply and oscilloscope probe. Power up the device.

XR-2206 Exar Monolithic Function Generator Data Sheet

Set the amplitude to the maximum with R3. Set the frequency to 1KHz with R6 and R9. Use a screwdriver to trim R7 to the midpoint and adjust R8 for minimum distortion.

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