FEATURES
Four High Performance VCAs in a Single Package 0.02% THD No External Trimming 120 dB Gain Range 0.07 dB Gain Matching (Unity Gain) Class A or AB Operation APPLICATIONS
Remote, Automatic, or Computer Volume Controls Automotive Volume/Balance/Faders Audio Mixers Compressor/Limiters/Compandors Noise Reduction Systems Automatic Gain Controls Voltage Controlled Filters Spatial Sound Processors Effects Processors GENERAL DESCRIPTION
Low Cost Quad Voltage Controlled Amplifier SSM2164 FUNCTIONAL BLOCK DIAGRAM VC IIN VCA1 IIOUT VC IIN VCA2 IIOUT VC High performance (100 dB dynamic range, 0.02% THD) is provided at a very low cost-per-VCA, resulting in excellent value for cost sensitive gain control applications. All channels are closely matched to within 0.07 dB at unity gain, and 0.24 dB at 40 dB of attenuation. A 120 dB gain range is possible. A single resistor tailors operation between full Class A and AB modes. The pinout allows upgrading of SSM2024 designs with minimal additional circuitry.