This data sheet provides detailed information on the Texas Instruments PGA4311 chip
The PGA4311 is a high‑performance, four‑channel audio volume control designed for professional and high‑end consumer audio equipment. It features digitally‑controlled analog gain, zero‑crossing detection, mute function, and a 3‑wire serial control interface that supports daisy‑chaining.
The datasheet provides absolute maximum ratings, package information, detailed electrical characteristics, typical performance graphs, pin configuration, and serial‑port timing specifications. It also includes ordering codes for SOP‑28 packages and a comprehensive legal notice from Texas Instruments.
| Gain range | +31.5 dB to -95.5 dB |
|---|---|
| THD+N (U‑Grade) | 0.0004 % |
| Power supplies | +5 V analog, +5 V digital |
| Package | SOP‑28 |
The PGA4311 provides four independent audio channels.
Pins 13 (SDI), 14 (CS), 15 (SCLK) are inputs and pin 16 (SDO) is the output.
The device operates from +5 V analog and +5 V digital supplies.