TAS5755MDFDR

Product Overview

• Category: Audio Amplifier
• Use: The TAS5755MDFDR is a digital input, closed-loop Class-D audio amplifier designed for automotive applications.
• Characteristics: It offers high efficiency and excellent audio performance with low distortion and noise. The device supports various audio formats and provides advanced protection features.
• Package: The TAS5755MDFDR comes in a small 48-pin HTQFP package.
• Essence: This audio amplifier integrates a digital signal processor (DSP) and a power stage to deliver high-quality audio amplification.
• Packaging/Quantity: The TAS5755MDFDR is typically sold in reels of 250 units.

Specifications

• Power Supply Voltage: 4.5V to 18V
• Output Power: Up to 55W per channel
• Audio Formats Supported: I2S, TDM, PDM, and many others
• Signal-to-Noise Ratio: >100dB
• Total Harmonic Distortion + Noise: <0.1%
• Operating Temperature Range: -40°C to 105°C

Detailed Pin Configuration

The TAS5755MDFDR has a total of 48 pins. Here is a brief overview of the pin functions:

• Pins 1-8: Digital audio inputs (I2S, TDM, or PDM)
• Pins 9-16: Analog audio inputs (left and right channels)
• Pins 17-24: Power supply and ground connections
• Pins 25-32: Speaker outputs (left and right channels)
• Pins 33-40: Control and configuration pins
• Pins 41-48: Additional control and diagnostic pins

For a more detailed pin configuration diagram, please refer to the datasheet.

Functional Features

• Integrated digital signal processor (DSP) for audio processing and equalization
• Closed-loop architecture for improved audio performance and stability
• Advanced protection features, including over-temperature and short-circuit protection
• Flexible input options to support various audio formats
• Low power consumption in standby mode for energy efficiency

Advantages and Disadvantages

Advantages: - High efficiency and low power consumption - Excellent audio performance with low distortion and noise - Integrated DSP for advanced audio processing - Wide operating temperature range suitable for automotive applications

Disadvantages: - Limited output power compared to some higher-end amplifiers - Requires external components for proper operation

Working Principles

The TAS5755MDFDR operates on the principle of Class-D amplification. It uses pulse-width modulation (PWM) to convert the digital audio input into a high-frequency square wave. This square wave is then filtered and amplified by the power stage to drive the speakers.

The integrated DSP allows for precise control of the audio signal, enabling features such as equalization, filtering, and dynamic range compression.

Detailed Application Field Plans

The TAS5755MDFDR is primarily designed for automotive audio systems. It can be used in various applications, including:

1. Car infotainment systems
2. Head units and receivers
3. Amplifiers for car speakers
4. In-car entertainment systems

Its compact size, high efficiency, and advanced features make it an ideal choice for automotive audio applications.

Detailed and Complete Alternative Models

• TAS5760MDFDR: Similar to the TAS5755MDFDR but with higher output power and additional features.
• TAS5611A: A Class-D audio amplifier with similar characteristics but without the integrated DSP.
• TPA3116D2: Another Class-D audio amplifier with different pin configuration and specifications.

These alternative models offer different trade-offs in terms of power, features, and cost, allowing designers to choose the most suitable option for their specific requirements.

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