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Modular

F1/com CV in

  

Frequency control voltage input for F1/com. Level can be adjusted by knob   and 

the polarity inverted with switch   . See also   , 

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Falsche Zahlen

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F1/com CV 1V/Oct in 

 

1V/Octave input for F1/com. See also   , 

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. (1V/oct. adjustment, if 

necessary, see chapter 

4.Adjustment

)

F2 CV in 

 

Frequency control voltage input for F2. Level can be adjusted by   and the CV polarity 

inverted by switch   

Sync in ↕ F2 1V/Oct in (‘

Sync mode‘

 

new from Rev.6

)  The functionality of this socket can either be

a logic input for resetting the oscillator (Sync mode) 

or  be a1V/octave input for F2, depending on 

the state of switch 

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 .

In upper position of switch 

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 ‘Sync’, a positive-going trigger signal will reset the oscillator- 

wave and  restart it.

The   /   - wave will restart from its maximum deflection point (positive edge with knob 

‘Gain’ in cw position or positive AM CV; negative edge with knob ‘Gain’ ccw or negative AM CV)

The squarewave ( 

 )

 will restart the oscillation on the positive edge (+5V). 

In lower position of switch 

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 ‘F2-CV 1V/Oct.’, the plug is working as a 1V/octave input for F2 

(as known from previous versions of the XR22VCOFT)

Switch Sync ↕ F2-CV 1V/Oct. 

(new from Rev.6) 

This switch determines the function of socket   :

Switch in upper position: 

Sync Mode

A positive-going trigger on socket   will reset the oscillator (Read also under point   ).

Switch in lower position: 

F2 CV 1V/Oct. Mode

The socket   is working as a 1V/Octave CV input for F2 (as previous).

Sync Mode (from Rev.6)

With switch 

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 in upper direction ‘Sync’; socket   will become a logic signal input (for trigger/ gate/ 

squarewave or similar). A positive going edge from 0V→+5V (min.) is resetting the oscillator:

With knob ‘Gain’   in 

cw position or a positive AM CV , 

the oscillation will restart at its 

positive peak.

With knob ‘Gain’   in 

ccw position or a negative AM 

CV , the oscillation will restart at its 

negative peak.

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Summary of Contents for XR22 VCO

Page 1: ...uency Shift Keying Pulse and ramp generation Switching between two different frequency CVs Advanced waveform generation by FSK Dual color LED for FSK mode indication LFO Bass High Frequency Mode Switc...

Page 2: ...ave can be separately and independently controlled Switch Frequency Control VCO F1 F2 Output F1 F2 LO MID HI 4 com CVF2 is adding the F1 CVs to F2 this will ensure 1V oct tracking if both routes are u...

Page 3: ...This ensures better 1V oct tracking in the lower frequency regions 3 Introduction For better understanding please read first about the switch FSK 4 4 14 Falsche Zahlen and LED FSK FSK mode switch freq...

Page 4: ...cies within the FSK option The ratio can only be changed by the F2 knob or the F2 CV inputs Note that in this mode the frequency range is expanded and that for F2 four independent CV inputs are now av...

Page 5: ...4 14 lower position pulse waveform output Note In F1 mode Green the LED FSK is indicating the peaks 5V of the squarewave or pulse signal while in F2 mode the LED Red is indicating the gaps 0V sine tr...

Page 6: ...egative edge with knob Gain ccw or negative AM CV The squarewave will restart the oscillation on the positive edge 5V In lower position of switch 2 3 4 5 6 7 8 9 21 10 11 13 14 15 16 17 18 19 20 22 12...

Page 7: ...you have adjusted on the XR22 VCO 4 Adjust poti F1 and fine tuning until the pitch of the XR22 is the same like that of the 2nd VCO 5 Play a note 3 octaves higher Adjust trimmer F1 1V oct see above un...

Page 8: ...immers for 1V oct adjustment Improves the high frequency behaviour of the 1V oct tracking It is recommended not change the settings F2 knob tuning on inner board nearby F2 potentiometer To ensure that...

Page 9: ...Pfade 4 4 14 4 8 9 10 11 12 26 Documentations for version Rev 5 2 and previous without rgb LED AM and another arrangement of control elements on the front panel https www cg products de documentations...

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