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PT2256-SN from PTC

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PT2256-SN

Manufacturer: PTC

Electronic Volume Controller IC

Partnumber Manufacturer Quantity Availability
PT2256-SN,PT2256SN PTC 1148 In Stock

Description and Introduction

Electronic Volume Controller IC The **PT2256-SN** is an integrated circuit (IC) designed for electronic volume control in audio applications. Manufactured using CMOS technology, this component provides precise and low-noise attenuation for audio signals, making it suitable for high-fidelity sound systems, home theaters, and professional audio equipment.  

Featuring a **6-channel electronic volume control**, the PT2256-SN allows independent adjustment of multiple audio inputs, ensuring flexibility in system design. It supports a wide attenuation range, typically from **0 dB to -79 dB**, with fine resolution for smooth volume transitions. The IC operates on a single power supply, typically **5V**, and includes built-in mute functionality for quick signal cutoff.  

Communication with the PT2256-SN is facilitated via an **I²C bus interface**, enabling seamless integration with microcontrollers and digital control systems. Its compact **DIP or SOP package** ensures easy implementation in various circuit layouts while maintaining reliable performance.  

With low distortion and high signal-to-noise ratio (SNR), the PT2256-SN is an efficient solution for applications requiring precise audio level management. Its robust design and compatibility with modern digital control methods make it a preferred choice for engineers working on advanced audio processing systems.

Application Scenarios & Design Considerations

Electronic Volume Controller IC

Alternative Part Number

  • M62429FP --: Similar electronic volume control IC with serial control interface, widely used as a functional substitute in audio volume applications.
  • PGA2311UA --: High-quality digital-controlled audio volume IC offering comparable volume control functionality with better performance specs.
  • DS1802S --: Dual digital potentiometer usable for audio volume control, providing a similar push-button/up-down volume adjustment function.
  • PTC2256 --: Same PT2256-series digital volume control function from the same vendor family, pin-compatible in most designs.
  • M62429 --: Widely used serial-controlled dual-channel electronic volume IC with comparable I2C-like interface and audio performance.
  • TDA7439 --: I2C-controlled audio processor with volume/tone functions that can replace PT2256 in many audio systems with minor firmware changes.

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