PGA2310UA/1KG4

Audio Special Purpose Overview

The PGA2310UA/1KG4 is a dual-channel stereo audio volume control integrated circuit manufactured by Texas Instruments. It features a gain range of +31.5 dB to -95.5 dB with 0.5 dB step resolution, controlled via a serial interface. The device operates on a single supply voltage ranging from 4.5 V to 15.5 V and draws a typical operating current of 7.5 mA. Key electrical specifications include a total harmonic distortion plus noise (THD+N) of 0.0004% at 1 kHz, a dynamic range of 120 dB, and a gain-bandwidth product of 1.5 MHz. It is housed in a 16-SOIC package.

Audio Special Purpose Feature Summary

• Dual-channel stereo volume control with SPI-compatible serial interface
• Gain adjustment range from +31.5 dB to -95.5 dB in 0.5 dB steps
• Low distortion performance: 0.0004% THD+N at 1 kHz
• High dynamic range of 120 dB

Audio Special Purpose Applications

• Audio systems requiring precise digital volume control
• Musical instruments with electronic signal processing
• Professional audio equipment interfaces

Audio Special Purpose Procurement Notes

Verify the 'G4' suffix indicates lead-free compliance per Texas Instruments standards. Confirm the '/1K' designation corresponds to the standard reel packaging quantity of 1000 units. Ensure the SOIC-16 package dimensions match the target PCB footprint requirements before procurement.

Audio Special Purpose Selection Notes

Select this component for applications requiring low-noise analog volume control with digital precision. The 1.5 MHz gain-bandwidth product supports high-fidelity audio frequencies. Verify that the system power supply falls within the 4.5 V to 15.5 V operational range and that the microcontroller can drive the required serial interface signals.

Audio Special Purpose Part Context

The PGA2310UA/1KG4 belongs to the PGA2310 family of stereo audio volume controls. The 'U' suffix denotes the SOIC-16 surface-mount package, while '/1K' specifies the tape-and-reel packaging format. The 'G4' suffix typically signifies lead-free manufacturing processes compliant with RoHS directives.

Audio Special Purpose Replacement Considerations

The PGA2311U/1K is a related part in the same family offering similar functionality. Verify pin compatibility and specific electrical parameter differences before substitution.