The PGA2311U/1KG4 is an integrated circuit (IC) component designed for professional audio applications. It belongs to the PGA231x family of digitally-controlled stereo audio volume controllers manufactured by Texas Instruments.
The key features of the PGA2311U/1KG4 include:
1. Stereo Volume Control: It provides digitally-controlled audio volume adjustment for stereo audio systems. The volume can be controlled using an I2C-compatible serial interface.
2. Wide Volume Range: The PGA2311U/1KG4 supports a wide volume range from -95 dB to +31.5 dB, which allows precise control over the audio output level.
3. Low Distortion: It offers low total harmonic distortion (THD+N) of less than 0.005%, ensuring high-quality audio reproduction.
4. Pop-Free Transitions: The IC incorporates a click-and-pop suppression circuit that eliminates audible pops and clicks during volume level changes, ensuring a smooth and seamless audio experience.
5. Multiple Input Channels: It supports up to three stereo input channels, allowing the user to switch between different audio sources effortlessly.
6. Independent Channel Control: The PGA2311U/1KG4 enables independent volume control for each channel, providing flexibility and customization for stereo audio systems.
7. Integrated Mute Function: It includes a built-in mute function that allows for instantaneous and noiseless audio muting when required
