SSI2190
Voltage Controlled Mixer
Based on our new OTA circuit, the ProCircuit™ SSI2190 mixes six inputs into a single high compliance output! Each channel has differential voltage inputs with current-mode linear control. In addition to the obvious signal mixing, the SSI2190 can be creatively employed for phase correction, voltage controlled equalizers, pole mixing, and whatever else you can dream up. Patent Pending
SSI2130
Voltage Controlled Oscillator
Designer Derek Bowers has been imagining this chip since building his first synth during college! The FatKeys™ SSI2130 provides beautiful triangle, sawtooth, pulse, and square waveforms with unprecedented temperature stability; and adds an on-chip mixer, low distortion sine wave generator, through-zero FM/PM capability and more in an ultra-compact PCB footprint.
SSI2131
Voltage Controlled Oscillator
The FatKeys™ SSI2131 Voltage Controlled Oscillator provides the core VCO function with buffered triangle, sawtooth, and variable-width pulse waveform outputs over a ten-octave range. The device offers unparalleled temperature stability, exponentiality, waveform integrity, and ease of use while requiring an absolute minimum of external components.
SSI2140
Voltage Controlled Multi-Mode Filter
A refresh of a classic design, the FatKeys™ SSI2140 preserves mojo of the beloved SSM2040 and adds temperature compensation of gm cells and the exponential control port. A "Q VCA" is provided to allow easy resonance control as well as various options for Q compensation. The four transconductance cells are highly configurable for a variety of pole and mode combinations.
SSI2144
Voltage Controlled Low-Pass Filter
The second of two legendary SSM filter updates, the FatKeys™ SSI2144 is a dedicated four-pole low-pass ladder filter with on-chip resonance control. Original designer Dave Rossum did a number of performance updates such as lower noise, improved control feedthrough, and logical pin grouping but otherwise left this sweet-sounding VCF alone.
SSI2161
Voltage Controlled Amplifier
A very high performance single-channel VCA for the most demanding applications, the ProCircuit™ SSI2161 offers industry-leading lowest-noise, and a mode control to optimize noise vs. distortion performance. All at low-cost and in a 10-lead SSOP package.
SSI2162
Voltage Controlled Amplifier
The FatKeys™ SSI2162 provides two independent VCA channels, and like its SSI2161 and SSI2164 siblings offers great flexibility in design of dynamics processors, automatic or remote level control, and voltage controlled filters. Highly compact 10-lead SSOP package.
SSI2164
Voltage Controlled Amplifier
The FatKeys™ SSI2164 is perhaps the most flexible VCA available, with four independent channels for lowest cost-per-VCA. The user-selectable mode control allows Class A, AB, or intermediate biasing, and current inputs and outputs provide great design freedom. Ideal for voltage-controlled filters.