Digital VCA

Analog core, digital control

The Digital VCA is a two channel digitally controlled analog attenuator.  Each channel features and Update G/ZCD jack and 3 position switch controlling when the VCA responds to CV.

Inst mode responds instantly to CV.  Gate mode makes the VCA wait until it sees a positive going edge on rhe update hack (normalled to in jack).  ZCD is Zero-Crossing-Detector and eliminates pops in very fast envelopes by waiting to open until the waveform reaches the zero plane.  Very helpful when working with vry fast envelopes and low frequencies.

• Dual VCA Design
• Low Distortion / Low Noise
• VCA Closes Completely
• Zero Crossing Detector
• Gate/Trigger Detector
• 5V/8V CV ready
• 8 bit CV resolution
• Analog Signal Path
• Bi-Color LED Signal Indicator
• Red CV Indicator
• 6 HP
• Great for Ultra Fast Envelopes

PDF MANUAL

Input - This DC coupled input handles control voltages and signals up to 20Vpp in amplitude.

CV - Insert your control voltage here. Designed for 0-5V or 0-8V signals. CV strength will appear on the red LED above this jack. 5 or 8 V produces unity gain on the output. Exceeding these voltages or using negative voltage will not damage the device.

Update G/ZCD - This input controls the updating in Gate and ZCD modes. In Gate mode, the rising edge will cause CV to be updated. In ZCD mode, the signal must be at or crossing the 0V potential (ground) for CV to be processed.

Output - Attenuated signal output.

CV 5V / 8V Switch - This slide switch controls whether the VCA expects to see 8 Volts or 5 Volts at the upper limit.

Inst / Gate / ZCD Switch - This switch controls the operating mode of the Digital VCA. Instant mode continuously updates from the CV input. Gate updates on rising edges of the signal on the Update G/ZCD jack (normaled from the Input). ZCD mode updates on zero crossings.

Specs: