TDA21570 Specifications
Manufacturer: NXP Semiconductors
Part Number: TDA21570
Device Type: High-efficiency audio amplifier IC
Amplifier Class: AB
Output Power: Up to 50 W per channel (stereo)
Supply Voltage Range: 10 V to 28 V
Total Harmonic Distortion (THD): Low distortion for high fidelity
Signal-to-Noise Ratio (SNR): High SNR for clear audio
Gain Configuration: Multiple gain options
Package Type: Power DIP or SO (depending on variant)
Mounting Type: Through-hole or surface mount (based on package)
Operating Temperature Range: -40 °C to +85 °C
Key Features
The TDA21570 is a high-performance audio amplifier designed for quality sound reproduction. Additionally, it supports up to 50 W per channel, which provides healthy power for medium-to-large speakers. Moreover, low distortion and high signal-to-noise ratio enhance audio clarity. Furthermore, versatile gain options enable designers to tailor performance to specific applications.
Applications
Home audio amplifier systems
Public address systems
Automotive audio systems
High-fidelity speaker systems
Portable audio power stages
Telecommunications audio amplification
Musical instrument amplification
Embedded sound systems
Product Overview
The NXP Semiconductors TDA21570 audio amplifier IC delivers high-efficiency performance for stereo audio applications requiring strong output power and sound clarity. Specifically, it supports up to 50 W per channel over a wide supply range from 10 V to 28 V. As a result, designers can achieve robust audio performance across consumer and industrial systems. Moreover, the Class AB design helps balance efficiency with low distortion for clear sound reproduction. Therefore, this amplifier suits high-fidelity applications where audio quality matters.
In addition, the high signal-to-noise ratio and configurable gain options allow fine-tuning of performance to match speaker characteristics and system requirements. Furthermore, the TDA21570 integrates conveniently into power and audio stages with minimal external components. Consequently, overall system design becomes more efficient. Because of its broad temperature tolerance and flexible mounting variants, this amplifier performs reliably across varied environments. Therefore, it remains a practical choice for reliable audio amplification in modern electronics.
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