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The Sound Semiconductor ProCircuit™ SSI2162 is a versatile and high performance VCA building block for
a wide variety of audio applications. Two independent channels provides voltage control of a current-
mode inputs and outputs for a gain range from +20dB to –100dB,
with control provided by a ground-referenced –33mV/dB constant.
This device offers considerable flexibility for a wide range of design
goals and applications. A unique mode control allows selection of Class
A, Class AB, or in-between using a single resistor. In addition, improved
current handling allows use of lower value input resistors for reduced
output noise without loss of headroom. Both channels can be
connected in parallel for more noise improvement. This device can be used as
a high-quality OTA building block for a variety of applications such as
voltage controlled filters, exponential generators, and antilog converters.
The SSI2162 will operate on supplies as low as +8V for battery-powered
devices such as guitar pedals, or up to ±18V in systems where
maximum headroom and S/N ratio is desired.
This is one of a family of economical high performance VCAs from
Sound Semiconductor. See the Related Products table below for additional
SSI VCA products.
