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The TEA6321T is an integrated circuit (IC) designed for audio signal processing and switching applications. Below are its key specifications, descriptions, and features:

Manufacturer

• NXP Semiconductors (formerly Philips Semiconductors)

Descriptions

• The TEA6321T is a stereo audio source selector and volume controller IC.
• It is designed for high-quality audio systems, providing low distortion and noise.
• Supports multiple audio inputs and allows switching between them with volume control.

Features

1. Input Selection

• 4 stereo inputs (configurable for different audio sources).
• Low crosstalk between channels.

2. Volume Control

• Digital control via I²C bus interface.
• Wide attenuation range (typically from 0 dB to -80 dB).

3. Output Capability

• Differential or single-ended outputs for flexible system integration.
• Low output impedance for driving external amplifiers.

4. Signal Quality

• Low Total Harmonic Distortion (THD) for high-fidelity audio.
• Wide frequency response (suitable for full audio spectrum).

5. Control Interface

• I²C bus control for easy integration with microcontrollers.

6. Power Supply

• Single-supply operation (typically 5V).
• Low power consumption for energy-efficient designs.

7. Package

• SO20 (Small Outline 20-pin package) for compact PCB designs.

Applications

• Home audio systems
• Car audio systems
• Professional audio equipment
• Multimedia devices

This IC is optimized for applications requiring high-quality audio switching and volume control with minimal external components.