GENERAL DESCRIPTION
The SSM2018T and SSM2118T represent continuing evolution of the Frey Operational Voltage Controlled Element (OVCE) topology that permits flexibility in the design of high performance volume control systems. Voltage (SSM2018T) and differential current (SSM2118T) output versions are of fered, both laser-trimmed for gain core symmetry and offset. As a result, the SSM2018T is the first professional audio quality VCA to offer trimless operation. The SSM2118T is ideal for low noise summing in large VCA based systems.

FEATURES
    117 dB Dynamic Range
    0.006% Typical THD+N (@ 1 kHz, Unity Gain)
    140 dB Gain Range
    No External Trimming Required
    Differential Inputs
    Complementary Gain Outputs
    Buffered Control Port
    I–V Converter On-Chip (SSM2018T)
    Differential Current Outputs (SSM2118T)
    Low External Parts Count
    Low Cost