ON Semiconductor SA572DR2 - Compact Dual-channel Compandor IC
The ON Semiconductor SA572DR2 is a versatile dual-channel compandor (compressor-expander) integrated circuit designed for use in a variety of audio applications where noise reduction, level control, or dynamic range expansion is required. This high-performance IC is ideal for professional audio equipment, wireless microphones, audio mixing consoles, and communication systems.
Each channel of the SA572DR2 operates independently, allowing for separate compression and expansion of audio signals. The compandor utilizes a voltage-controlled amplifier (VCA) and a true RMS-level detector to provide smooth and responsive control over the dynamic range of the audio signal. This ensures that the audio output maintains consistent quality without the artifacts that can be introduced by abrupt changes in level.
The SA572DR2 offers a wide range of dynamic control, with the ability to compress input signals by up to 2:1 or expand them by up to 1:2. This flexibility makes it an excellent choice for applications that require precise manipulation of audio dynamics. The IC also features low noise and low distortion characteristics, preserving the integrity of the original audio signal.
The IC is available in a compact 16-pin SOIC package, making it suitable for space-constrained designs. The SA572DR2 operates over a wide power supply range of ±4.5V to ±18V, accommodating a variety of system configurations. Moreover, the device features an external control input that can be used to adjust the dynamics processing from an external source, adding to its versatility.
In summary, the ON Semiconductor SA572DR2 is a high-quality, flexible solution for dynamic range control in audio systems. Its dual-channel design, wide dynamic range, and low distortion make it a go-to choice for designers looking to enhance the audio performance of their products. The SA572DR2's compact size and ease of integration ensure that it can be incorporated into a wide range of applications without compromising on space or performance.
