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Modular

XR22 VCO FT

VCO with AM Input and FSK (Frequency Shift Keying)

1. Features

AM (Amplitude Modulation) Input

Ring modulation

CV controllable sine/triangle volume 

Advanced waveform generation through feedback

FSK (Frequency Shift Keying)

Pulse and ramp generation

Switching between two different frequency CVs

Advanced waveform generation

 LFO/Bass/High Frequency Mode

Available with banana or 3,5mm phone sockets

Eurorack Module

Width: 12 HP

Dimensions:

128,5 mm x 60,6 mm
Depth: 40mm

Supply Voltage: 

±

12V

Current consumption:

≈ 70mA

Minijack Version

Banana Version

Drawing

                                      1  

FSK

AM in

AM In

FSK in

F1 CV inv.

F1/com CV

F2 CV 

F1/com

F2

XR22 VCO

F1/com CV 

1V/Oct

F2 CV inv.

/

F2

F1

Σ

com

CV

F2

F2 CV 1V/Oct

Gain

Lo

Mid

Hi

F1 CV

F2 CV

1

2

3

4

5

0

6

7

8

1

2

3

4

5

0

6

7

8

1

2

3

4

5

0

6

7

8

-1

0

-2

+1

+2

Bypass

AM In

/

+1

-1

+1

-1

Fine

Fine

Summary of Contents for XR22 VCO FT

Page 1: ...Vs Advanced waveform generation LFO Bass High Frequency Mode Available with banana or 3 5mm phone sockets Eurorack Module Width 12 HP Dimensions 128 5 mm x 60 6 mm Depth 40mm Supply Voltage 12V Current consumption 70mA Minijack Version Banana Version Drawing 1 FSK AM in AM In FSK in F1 CV inv F1 com CV F2 CV F1 com F2 XR22 VCO F1 com CV 1V Oct F2 CV inv F2 F1 Σcom CVF2 F2 CV 1V Oct Gain Lo Mid Hi ...

Page 2: ...Switch FSK 2 3 4 5 6 7 8 9 21 10 11 13 14 15 16 17 18 19 20 22 12 Objekt in Pfade 4 4 14 mid Mode F1 F2 activated Switch FSK 2 3 4 5 6 7 8 9 21 10 11 13 14 15 16 17 18 19 20 22 12 Objekt in Pfade 4 4 14 Falsche Zahlen low The oscillator frequency shifts itself F1 and F2 falling and rising edges of the triangle waveform can be separately adjusted With external FSK control signal applied on FSK in S...

Page 3: ...2 3 5 0 6 7 8 1 2 1 2 Bypass AM In 1 1 1 1 Fine1 Fine2 4 14 24 Introduction For better understanding it is recommended to read first about the control elements 4 4 14 Falsch and FSK mode switch frequency shift keying In upper position Only F1 is active LED green In middle position Only F2 is active LED red In lower position the square output of the VCO is internally connected to the FSK input and ...

Page 4: ...clockwise positions of the potentiometer the phase will be inverted See also Examples in chapter 2 2 FSK In some applications the Gain knob may be used to alter the waveshape by adding more or less voltage to your input signal e g if you feedback the output to the AM Input and adjust and carefully the oscillator generates very overtone rich waveforms FSK mode LED see above Introduction sine triang...

Page 5: ...ts the input level of F1 com CV in F1 com CV inversion switch Inverts the polarity of the signal on socket F1 com CV in F2 CV Manual control adjusts the input level of F2 CV in F2 CV inversion switch Inverts the polarity of the incoming signal on socket F2 CV in F1 com CV in Frequency control voltage input for F1 com Level can be adjusted by and the polarity inverted by switch See also 2 3 4 5 6 7...

Page 6: ...7 Go back to step 4 and repeat all other steps until both oscillators are in tune 8 Repeat the same procedure with F2 with FSK 2 3 4 5 6 7 8 9 21 10 11 13 14 15 16 17 18 19 20 22 12 Objekt in Pfade 4 4 14 Falsche Zahlen in middle position and F2 1V Oct Input Alternatively you can use the 1V Oct input F1 com for F2 too Put switch com in lower position and the 1V Oct input F1 com is now working for ...

Page 7: ...position the knob AM In Level turned fully left and knob Bypass turned fully right Apply the Output to a frequency CV input of a 2nd oscillator or to the AM input of a 2nd XR22 VCO There must occur no change of the 2nd oscillator s frequency or the 2nd XR22 VCO s loudness 5 Contact Support cg products de module xr22 vco ft cg products de Christian Günther Forster Str 50 10999 Berlin info cg produc...

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