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SSH

COMPLEX SAMPLE & HOLD

OPERATION MANUAL 

SQR

SAW

TRI

SIN

Summary of Contents for SSH

Page 1: ...SSH COMPLEX SAMPLE HOLD OPERATION MANUAL SQR SAW TRI SIN ...

Page 2: ...v For controlling the shape of slew 5v to 5v Noise generator output 5v to 5v S H staircase output Slewed S H output 3 position Toggles when slew is active 2 position Toggles the symmetry of the slew shaping circuit Sets rate of internal S H clock RATE Attenuates RATE input signal Sets slew amount Slew Attenuates SLEW input signal Sets the shape of the slewing effect SLOPE Attenuates SLOPE input si...

Page 3: ...mer located on the rear of the module The rate of the clock can be controlled with external CV 5v to 5v signals recommended External CVs can be attenuated using the CV RATE knob The internal clock is normalized to the S H trigger input via the TRIG jack When a cable is inserted into the TRIG jack this connection is broken and the S H generator will be clocked by the external trigger signal Externa...

Page 4: ... signal input NOISE GENERATOR The noise circuit is a 5vpp white noise source This can be accessed at the NOISE output jack The noise generator is normalized to the sample hold input which generates a random staircase output waveform SLEW LIMITER WAVESHAPING CIRCUIT The SSH contains a complex slew limiter circuit which is used to limit the rate at which the staircase waveform can change By adding s...

Page 5: ...IMITER WAVESHAPING CIRCUIT SSH SSH Users Manual retroaktiv Figure 4 Staircase with no slew applied Figure 5 Staircase with 30 slew applied linear slope Figure 6 Staircase with 30 slew applied exponential slope ...

Page 6: ...s an exponential RC curvature In the examples given in figures 4 6 notice that the RISE FALL switch is in the center position The RISE FALL switch determines when the SLEW is active In the center position BOTH SLEW is active when the staircase waveform is rising and falling Always active It is possible to dis able the SLEW effect during rising or falling steps of the staircase waveform To enable S...

Page 7: ...7 SLEW LIMITER WAVESHAPING CIRCUIT SSH SSH Users Manual retroaktiv Figure 8 RISE FALL switch function EXP slope ...

Page 8: ...lied to both rishing and falling steps of the S H waveform Setting the switch to the bottom position Asymmetrical mode will change the way the slope knob functions In ASM mode the SLOPE knob will function as shown in figure 9 Figure 9 Slope knob function ASM mode ASM mode allows the slewed S H waveform to have a different slew shape on rising steps and falling steps Figure 10 illustrates how the s...

Page 9: ...9 SLEW LIMITER WAVESHAPING CIRCUIT SSH SSH Users Manual retroaktiv Figure 10 Slope knob function ASM mode ...

Page 10: ...W output signal at the SLEW test point at the rear of the SLEW output jack Use the SHAPE trimmer on the PCB to dial in an exponential waveform then sweep the SLOPE knob to center position Slewing should morph from EXP to LIN as the SLOPE knob is swept from fully count er clockwise to mid position If the trimmer is set too high the slew will not be EXP when SLOPE is set to its minumum If the trimme...

Page 11: ...hes and LED into respective holes Attach front panel to pots and jacks Switches need to be soldered into place when held flush against the front panel In the case of the RISE FALL 3 position switch the switch must be centered so the switch can move through all 3 positions The top of the cylindrical LED should be flush with the front panel Position the LED before soldering If done successfully the ...

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