The PGA2310 is a high-performance, stereo audio volume control designed for professional and high-end consumer audio systems.
Key technical aspects include:
Voltage Handling: The ability to operate from ±15-V analog power supplies allows it to process input signals with large voltage swings, preserving the dynamic range of the overall signal path.
Internal Amplification: It uses high-performance internal operational amplifier stages to achieve low noise and distortion.
Drive Capability: It is capable of driving 600-Ω loads directly without the need for additional buffering.
Control Interface: A three-wire serial interface allows connection to various host controllers and supports daisy-chaining multiple devices for multi-channel setups.
The PGA2310 is characterized by its high-voltage handling and precise digital control:
Digitally-Controlled Analog Volume Control:
Two independent audio channels.
Serial control interface.
Zero crossing detection.
Mute function.
Wide Gain and Attenuation Range: +31.5 dB to −95.5 dB with 0.5-dB steps.
High-End Performance:
Low Noise and Distortion: 120-dB Dynamic Range and 0.0004% THD+N at 1 kHz.
Low Interchannel Crosstalk: −126 dBFS.
Operation: Noise-free level transitions.
Power Supplies: ±15-V Analog and +5-V Digital.
Packaging & Compatibility: * Available in DIP−16 and SOL−16 (SOIC) packages.
Pin and software compatible with the PGA2311 and Cirrus Logic CS3310™.
This device is utilized across various professional and automotive audio environments:
Professional Audio: Mixing consoles, broadcast studio equipment, and multi-track recorders.
Entertainment Systems: Audio amplifiers, A/V receivers, and high-end car audio systems.
Musical Hardware: Musical instruments and effects processors.