PGA2320IDWG4

Audio Special Purpose Overview

The PGA2320IDWG4 is a dual-channel stereo volume control integrated circuit manufactured by Texas Instruments. It functions as a programmable gain amplifier with an SPI serial interface, offering a gain range from +31.5 dB to -95.5 dB in 0.5 dB steps. The device supports dual power supplies ranging from ±4.5 V to ±15.5 V and features zero-crossing detection to eliminate switching noise. It provides high channel separation and low distortion, suitable for professional audio applications.

Audio Special Purpose Feature Summary

• Dual-channel stereo volume control with 255 gain steps
• SPI serial interface for digital gain adjustment
• Zero-crossing detection prevents audible switching artifacts
• Operates on dual supplies from ±4.5 V to ±15.5 V

Audio Special Purpose Applications

• Professional audio mixing consoles
• Hi-Fi preamplifiers
• Automotive audio systems

Audio Special Purpose Part Context

The PGA2320IDWG4 is the lead-free, RoHS-compliant version of the PGA2320IDW. Both devices share identical electrical specifications and pinouts. The 'G4' suffix indicates compliance with environmental standards without altering the functional performance or package dimensions.

Audio Special Purpose Replacement Considerations

The PGA2320IDWG4 has been marked as obsolete. The manufacturer recommends the PGA2320IDW as a direct replacement. Designers should verify that the alternative package type meets board space requirements.