TFA9871BUK/N1Z

Overview

The TFA9871BUK/N1Z is a Class D audio amplifier manufactured by NXP Semiconductors. It delivers an output power of 3.6W into an 8-ohm load. The device utilizes Pulse Density Modulation (PDM) input/output for speaker driving capabilities. It is housed in a WLCSP package and operates within a supply voltage range of 2.7V to 5.5V. The component features integrated protection mechanisms including pop-and-click suppression, short-circuit protection, and thermal shutdown. It is compliant with RoHS standards.

Feature Summary

• Class D architecture for high-efficiency audio amplification
• Integrated PDM interface for digital audio input
• Built-in protection against short circuits and overheating
• Pop-and-click suppression for improved user experience

Applications

• Portable consumer electronics requiring compact audio solutions
• Smart home devices with voice interaction capabilities
• IoT speakers and smart displays
• Mobile communication devices

Procurement Notes

Verify the specific suffix 'N1Z' to ensure compliance with current environmental directives such as RoHS and REACH. Confirm that the WLCSP package type matches your PCB footprint requirements. Check for obsolescence status as this component may be subject to limited availability or end-of-life notices from the manufacturer. Ensure compatibility with your system's PDM clocking and data lines.

Selection Notes

Select this component when a small form factor is critical due to its WLCSP packaging. It is suitable for applications requiring digital PDM interfaces rather than analog inputs. Consider the 3.6W output capability relative to the target speaker impedance. Verify that the operating temperature range meets the environmental conditions of the final product assembly.

Part Context

This part belongs to the TFA9874 series family of audio amplifiers from NXP. It shares similar functional characteristics with other members like the TFA9874EUK/N1Z but differs in specific pinout or configuration details inherent to the BUK variant. The series is designed for mobile and portable audio applications requiring high efficiency and minimal external components.

Replacement Considerations

Direct substitutes include other parts within the TFA987x series such as the TFA9874EUK/N1Z or TFA9874CUK/N1Z, provided pin compatibility and software configuration allow for migration. Verify package dimensions and electrical parameters before substitution.