TFA8200HN/N1J

Overview

The TFA8200HN/N1J is a high-efficiency filter-free mono bridge-tied load (BTL) class-D audio amplifier designed for Internet of Things applications. It features two independent digital audio inputs supporting I2S, PCM, and IOM2 formats with sample rates from 8 kHz to 96 kHz. The device integrates a programmable digital signal processor including a 5-band parametric equalizer, bass/treble control, dynamic range compressor, and volume control. It operates on a wide supply voltage range of 2.5 V to 5.5 V, delivering up to 2.75 W into an 8 Ω load at 10% THD+N. The amplifier utilizes a closed-loop configuration for high power supply rejection and includes comprehensive protection circuits such as overcurrent, overtemperature, and invalid bit-clock protection.

Feature Summary

• Integrates a programmable digital signal processor featuring a 5-band parametric equalizer, dynamic range compressor, and zero-crossing volume control for optimized audio performance.
• Supports dual independent digital audio interfaces compatible with I2S, PCM, and IOM2 formats, enabling connection to both baseband and multimedia processors.
• Delivers high output power with high efficiency across a wide supply voltage range while requiring only three external components.
• Includes built-in protection mechanisms against short circuits, overtemperature conditions, and digital input anomalies via I2C-bus diagnostics.

Applications

• Internet of things devices
• Notebooks
• Portable gaming devices

Procurement Notes

Verify the specific ordering suffix N1J against official documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with the HVQFN24 package dimensions and thermal requirements. Confirm that the digital supply voltage aligns with system constraints before integration.

Selection Notes

Select this component for designs requiring a filter-free mono amplifier with integrated DSP capabilities. It is suitable for systems needing dual digital audio inputs and programmable sound processing features like equalization and compression. Consider the 2.5 V to 5.5 V supply range and the HVQFN24 package size for space-constrained applications.

Part Context

The TFA8200 is part of NXP's portfolio of high-efficiency audio amplifiers tailored for IoT and portable electronics. It combines analog power delivery with advanced digital signal processing in a single chip. The device supports various digital audio protocols and offers extensive configurability through the I2C interface, making it adaptable to diverse audio processing needs.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.

FAQ

What digital audio formats does the TFA8200 support?

The TFA8200 supports I2S formats (Philips standard, Japanese MSB-justified, Sony LSB-justified) with sample rates from 8 kHz to 96 kHz, as well as PCM/IOM2 formats with sample rates of 8 kHz or 16 kHz.

How does the TFA8200 handle pop noise during operation?

The device ensures pop-noise-free operation at power-up/power-down, during sample rate switching, and when switching between digital inputs. It also employs zero-crossing volume control to minimize pops when adjusting volume or tone settings.

What protection features are included in the TFA8200?

The TFA8200 includes overcurrent protection (OCP), overtemperature protection (OTP), underfrequency protection (UFP), overfrequency protection (OFP), and invalid bit-clock protection (IBP). These can be monitored via the I2C-bus.