SA575DR2

Audio Special Purpose Overview

The SA575DR2G is a low-voltage, precision dual gain control compandor manufactured by onsemi. It integrates two independent channels: Channel 1 functions as an expander (noise reducer), while Channel 2 functions as a compressor (noise limiter). The device operates within a supply voltage range of 3V to 7V and is available in a 20-Lead TSSOP package with a maximum width of 7.8mm. It is designed for consumer audio and telecommunication applications requiring high dynamic range and low distortion.

Audio Special Purpose Feature Summary

• Dual-channel architecture: Channel 1 is an expander; Channel 2 is a compressor
• Low voltage operation: 3V to 7V supply range
• High precision: Low input offset voltage (max 30µV)
• Package: 20-Lead TSSOP (SA575DR2G)
• Operating temperature range: -40°C to +85°C
• Supply current: Typical 4.2mA

Audio Special Purpose Applications

• Consumer audio equipment (CD players, cassette decks, amplifiers)
• Telecommunication systems
• Noise reduction and signal conditioning circuits

Audio Special Purpose Procurement Notes

The correct ordering part number is SA575DR2G. The 'DR2' suffix indicates the 20-Lead TSSOP package in Tape & Reel format. Ensure procurement matches this specific suffix for correct packaging and quantity per reel.

Audio Special Purpose Selection Notes

Select the SA575DR2G when a combined noise-reduction (expander) and noise-limiting (compressor) solution is required in a single IC. Verify that the design supports the TSSOP-20 footprint (7.8mm max width) and operates within the specified 3V-7V supply range.

Audio Special Purpose Part Context

The SA575 series consists of precision analog compandors. The SA575DR2G is the surface-mount variant of the SA575D (SOIC-20). It is distinct from general-purpose op-amps due to its specialized gain-control transfer functions.