SBOS218A is a high-performance stereo audio volume control designed for professional and high-end consumer audio systems. It features digitally-controlled analog volume control, wide gain and attenuation range, low noise and distortion, zero crossing detection, and mute function.
The PGA2311 is a high‑performance, stereo audio volume control designed for professional and high‑end consumer audio equipment. It provides digitally‑controlled gain with a range of +31.5 dB to –95.5 dB in 0.5 dB steps, low noise (0.0004 % THD+N at 1 kHz, U‑Grade), and zero‑crossing detection for glitch‑free level changes.
The device operates from ±5 V analog supplies and a +5 V digital supply, supports a 16‑pin DIP or SOL package, and offers a serial 3‑wire control interface with daisy‑chaining capability. Detailed electrical characteristics, pin assignments, and timing specifications are provided for system integration.
| Gain range | +31.5 dB to –95.5 dB |
|---|---|
| THD+N (U‑Grade) | 0.0004 % at 1 kHz |
| Dynamic range | 120 dB |
| Power supplies | ±5 V analog, +5 V digital |
| Operating temperature | –40 °C to +85 °C |
| Package options | DIP‑16 and SOL‑16 |
Zero‑crossing detection is enabled by setting the ZCEN pin HIGH.
The maximum input or output voltage range is 7.5 V peak‑to‑peak.
Yes, the serial control port supports daisy‑chaining of multiple PGA2311 devices.