Overview
The PGA2311U/1K, manufactured by Texas Instruments, is a high-performance, stereo audio volume control IC designed for professional audio applications. This model is part of the PGA2311 series and is housed in a compact SOIC-16 package, making it suitable for space-constrained designs. The PGA2311U/1K is widely used in audio amplifiers, receivers, and other audio processing systems where precise volume control and low distortion are critical. Its digital control interface allows for easy integration into modern audio systems, making it a preferred choice for engineers in the audio industry.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2V~3.6V | V | Standard operating range |
| Package | SOIC-16 | - | Surface mount |
| Gain Range | -95.5dB to +31.5dB | dB | Programmable via digital interface |
| THD+N | 0.0004% | % | Low distortion |
| Bandwidth | 1MHz | Hz | Wide bandwidth for audio applications |
| Operating Temperature | -40°C to +85°C | °C | Industrial-grade |
Key Features
- Digital control of stereo volume with high precision.
- Low noise and low distortion for high-fidelity audio.
- Wide gain range from -95.5dB to +31.5dB.
- Compact SOIC-16 package for space-saving designs.
- Industrial-grade operating temperature range.
Applications
The PGA2311U/1K is ideal for use in professional audio systems, including audio amplifiers, receivers, and mixers. Its precise volume control and low distortion make it suitable for high-end consumer audio equipment, such as home theater systems and studio monitors. Additionally, it is used in industrial audio processing applications where reliable performance is essential.
Q & A
1. What is the gain range of the PGA2311U/1K?
The gain range is from -95.5dB to +31.5dB, allowing for precise volume control.
2. What is the package type of the PGA2311U/1K?
It comes in an SOIC-16 package, which is suitable for surface mount applications.
3. What is the operating voltage range?
The operating voltage range is 2V to 3.6V.
4. Is the PGA2311U/1K suitable for industrial applications?
Yes, it has an industrial-grade operating temperature range of -40°C to +85°C.
5. What is the THD+N of the PGA2311U/1K?
The total harmonic distortion plus noise (THD+N) is 0.0004%, ensuring high-fidelity audio.
6. Can the PGA2311U/1K be used in home theater systems?
Yes, its precise volume control and low distortion make it ideal for high-end consumer audio systems.
7. What is the bandwidth of the PGA2311U/1K?
The bandwidth is 1MHz, suitable for a wide range of audio applications.
8. Is the PGA2311U/1K RoHS compliant?
Yes, it is RoHS compliant and lead-free.
9. How is the PGA2311U/1K controlled?
It is controlled via a digital interface, allowing for easy integration into modern audio systems.
10. What are the typical applications of the PGA2311U/1K?
Typical applications include audio amplifiers, receivers, mixers, and high-end consumer audio equipment.
