Overview
The TDA8920CJ/N1,112 is a high-performance, single-chip class-D power amplifier produced by NXP USA Inc. This amplifier is designed to deliver high output power with high efficiency and low distortion. It features two independent audio channels, each capable of producing up to 110 watts of output power. The device includes advanced protection mechanisms such as overvoltage, overtemperature, and overcurrent protection to ensure robust system operation.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VP) | Operating mode | ±12.5 | ±30 | ±32.5 | V |
| Output Power | Per channel, VP = ±30 V | - | - | 110 | W |
| Thermal Foldback Activation Temperature (Tact(th_fold)) | - | - | - | 153 | °C |
| Thermal Protection Activation Temperature (Tact(th_prot)) | - | - | - | - | °C |
Key Features
- High output power: Up to 110 watts per channel.
- High efficiency: Class-D amplifier design for reduced power consumption and heat generation.
- Advanced protection mechanisms: Overvoltage, overtemperature (Thermal FoldBack and OverTemperature Protection), and overcurrent protection.
- Dual independent audio channels: Each channel includes a PWM modulator, an analog feedback loop, and a differential input stage.
- Common circuits for both channels: Includes oscillator, reference sources, mode interface, and digital timing manager.
- Robust system design: Ensures maximum system robustness with advanced protection strategies.
Applications
- Home audio systems: Amplifiers for home theaters and stereo systems.
- Professional audio equipment: Public address systems, live sound reinforcement, and professional audio amplifiers.
- Automotive audio systems: High-power amplifiers for car audio systems.
- Industrial audio applications: Amplifiers for industrial sound systems and public address systems.
Q & A
- What is the maximum output power per channel of the TDA8920CJ/N1,112?
The maximum output power per channel is up to 110 watts.
- What is the supply voltage range for the TDA8920CJ/N1,112?
The supply voltage range is ±12.5 V to ±32.5 V.
- What protection mechanisms are included in the TDA8920CJ/N1,112?
The device includes overvoltage, overtemperature (Thermal FoldBack and OverTemperature Protection), and overcurrent protection mechanisms.
- How many independent audio channels does the TDA8920CJ/N1,112 have?
The device has two independent audio channels.
- What is the thermal foldback activation temperature for the TDA8920CJ/N1,112?
The thermal foldback activation temperature is approximately 153 °C.
- What happens if the junction temperature exceeds the thermal protection activation threshold?
If the junction temperature exceeds the thermal protection activation threshold, the amplifier will shut down until the temperature drops below the threshold.
- What are some common applications of the TDA8920CJ/N1,112?
Common applications include home audio systems, professional audio equipment, automotive audio systems, and industrial audio applications.
- Does the TDA8920CJ/N1,112 have a digital timing manager?
- How does the TDA8920CJ/N1,112 ensure robust system operation?
The device ensures robust system operation through advanced protection strategies and common circuits for both channels.
- What is the package type of the TDA8920CJ/N1,112?
The package type is DBS23P.
