PGA2310UA/1K

Audio Special Purpose Overview

The PGA2310UA/1K is a two-channel stereo audio volume control integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 15.5 V and features a gain adjustment range from +31.5 dB to -95.5 dB in 0.5 dB steps. The device utilizes a serial interface for control and delivers a total harmonic distortion plus noise (THD+N) of 0.0004%. Key electrical parameters include a gain-bandwidth product of 1.5 MHz, an input bias voltage of 500 µV, and a quiescent current of 7.5 mA. It is housed in a 16-SOIC package suitable for surface mount applications.

Audio Special Purpose Feature Summary

• Two-channel stereo architecture with independent left and right channel control
• Serial interface for precise gain adjustment in 0.5 dB increments
• Low distortion performance with THD+N of 0.0004% at 1 kHz
• Wide dynamic range of 120 dB

Audio Special Purpose Applications

• Audio systems requiring digital volume control
• Musical instrument amplifiers and effects units
• Professional audio mixing consoles

Audio Special Purpose Procurement Notes

Verify the suffix /1K indicates tape and reel packaging containing 1000 units per reel. Confirm RoHS compliance status through official manufacturer documentation or distributor specifications before procurement. Ensure handling procedures account for moisture sensitivity as indicated in the datasheet.

Audio Special Purpose Selection Notes

Select this component when a low-noise, high-dynamic-range stereo volume controller is required. Verify that the system power supply supports the specified 4.5 V to 15.5 V range. Ensure the PCB layout accommodates the 16-SOIC package dimensions and provides adequate thermal dissipation for the operating temperature range of -40°C to +85°C.

Audio Special Purpose Part Context

The PGA2310 is part of the PGA2310 series of audio volume controls. It is often evaluated using the PGA2310EVM development board. The device serves as a direct replacement for previous analog volume control solutions in high-fidelity audio designs where digital precision is necessary.

Audio Special Purpose Replacement Considerations

The PGA2311U/1K is a related component in the same family, also featuring a 16-SOIC package and SPI interface. Verify pin compatibility and specific electrical parameter differences before substitution.