DPW Design Attenuverter AV2 Manual - Página 2

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A>B

A>B is a comparator that is comparing A and B after the attenuverters.

If A is more positive than B the output A>B will go high. If B is the highest the output will go low.

The output is -5V to +5V and has a volume control.

The output can be used as a logical control signal or as a squarewave audio output that can be

PWM modulated depending on A and B.

The LED shows the output voltage. Green is positive and red is negative voltage.

The LED shows the level before the output volume control so you can see how the comparator is

reacting before turning up the volume out.

Device specs

Module size:

Input impedance:

Output impedance:

Bandwidth:

Power requirements: +/-12V. Max power consumption 45 mA

A few examples of use cases more than just as dual attenuverter, a 2 channel mixer och a

comparator. Something to get your imagination going.

Bipolar to unipolar

A normal LFO has an output of +/-5V, that is 10V peak to peak. If you have a module

that requires a unipolar signal in you can do that with the AV2. The peak to peak

needs to be reduced to 5V and the signal needs to be moved to be just possitive

voltages.

Connect your LFO to A and set the potentiometer to halfway between the zero and

max clockwise as shown in the picture. You have now set the voltage to half of

whats in on A.

Don't connect anything on B and set the potentiometer to the same possition as A.

This gives a 2,5V DC voltage out on B.

Turn SUM max clockwise and use SUM as your output. Here is your unipolar signal.

If you look at the SUM LED. It shall only be green. If it flashes red when the FLO signal is low, just

turn B up a little more to move the signal more away from the negaive side.

PWM modulation

Connect a sine or triangle audio signal to A. Set the A knob to max clockwise position.

Connect a sine or trangle LFO to B. Set the amount of PWM with the B knob.

A>B is the audio out in this case.

If you want an extra fat and wide PWM stereo sound you can use two AV2 modules connected to

the same sources and set the controls of the two a bit different.

DPW Design, Häradsvägen 200, 14171 Segeltorp, Sweden

www.dpw.se

5 hp wide, 30 mm deep with power cable connected.

50 kohm

1 kohm

More than 300 kHz.

Connect the power cable with the red stripe down towards the -12V marking.

The unit is protected for reverse power.

Use case examples

MAN-AV2 Rev B