Description

The SA572D is a dual-channel, high-performance gain control circuit designed for dynamic range compression or expansion in special purpose audio applications. It features independent control of attack and recovery time, improved low frequency gain control ripple, and a wide dynamic range of greater than 110dB. The SA572D also utilizes a temperature-compensated gain control and a low distortion gain cell for high-quality audio performance.

Specifications and Features

• Independent control of attack and recovery time
• Improved low frequency gain control ripple
• Complementary gain compression and expansion with external op amp
• Wide dynamic range—greater than 110dB
• Temperature-compensated gain control
• Low distortion gain cell
• Low noise—6µV typical
• Wide supply voltage range—6V-22V
• System level adjustable with external components

Application Scenarios

The SA572D can be used in various audio applications such as audio processors, sound reinforcement systems, and recording devices. Its high-performance gain control and wide dynamic range make it suitable for applications requiring precise audio control and high fidelity playback.

Comparison

• Independent control of attack and recovery time for precise audio control
• Improved low frequency gain control ripple for high-quality audio performance
• Wide dynamic range—greater than 110dB for capturing subtle audio details
• Temperature-compensated gain control for consistent performance in different environments
• Low distortion gain cell for maintaining audio integrity

• Requires external components for complementary gain compression and expansion
• Wide supply voltage range—6V-22V may not be suitable for all applications
• Low noise—6µV typical, but noise performance could be improved