SA575DTBG

Audio Special Purpose Overview

The SA575DTBG is a dual-channel compander (compressor/expander) and Automatic Level Controller (ALC) from onsemi, designed for low-voltage audio applications. It integrates two independent channels: Channel 1 is typically configured as an expander, while Channel 2 can be configured as an expander, compressor, or ALC. The device includes dedicated summing operational amplifiers for each channel and provides additional uncommitted op-amps for system flexibility. It operates on a single supply voltage ranging from 3V to 7V and is rated for industrial temperature ranges.

Audio Special Purpose Feature Summary

• Dual-channel architecture with flexible configuration (Expander/Compressor/ALC)
• Integrated summing op-amps per channel plus extra uncommitted op-amps
• Low-voltage operation: 3V to 7V single supply
• Industrial temperature range availability
• TSSOP-20 package option (indicated by 'T' in DTBG)

Audio Special Purpose Applications

• Consumer Audio Equipment
• Telecommunication Systems
• Portable Communications Devices
• Wireless Microphones
• Modems and Data Links

Audio Special Purpose Procurement Notes

Verify the package type matches the specific design requirement, as the SA575 family is available in both SOIC-20 and TSSOP-20 configurations. Confirm that the component meets RoHS compliance standards if required by the manufacturing process. Check for end-of-life status or alternative part numbers if long-term availability is a constraint for the production timeline.

Audio Special Purpose Selection Notes

Select this component when a dual-channel companding solution is needed for portable or battery-powered audio systems. Ensure the application requires a 3V to 7V supply range. Consider the internal uncommitted op amps for signal conditioning needs. Verify that the TSSOP-20 package fits the PCB layout constraints compared to the SOIC variant.

Audio Special Purpose Part Context

The SA575DTBG belongs to the SA575 series of low-voltage companders manufactured by onsemi. This series is engineered for precision gain control in audio and communication circuits. The 'DTBG' suffix indicates the specific TSSOP-20 tube packaging configuration, distinguishing it from other package options like the SOIC-20.

Audio Special Purpose Replacement Considerations

The SA575D is a compatible alternative within the same product family. Verify pinout compatibility and package dimensions before substitution, as the SA575D may differ in physical footprint depending on its specific package variant.