TFA9872CUK/N1Z

Description：IC AMP D MONO/STER 5.1W 42WLSCP
Series：-
Mfr：NXP USA Inc.
Package：Tape & Reel (TR)

SKU:1a6d7683e877 Category: Audio Amplifiers Brand: NXP USA Inc.

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Product introduction

Product Detailed Parameters

Description：IC AMP D MONO/STER 5.1W 42WLSCP
Series：-
Mfr：NXP USA Inc.
Package：Tape & Reel (TR)
Type：Class D
Output Type：1-Channel (Mono) or 2-Channel (Stereo)
Max Output Power x Channels @ Load：5.1W x 1 @ 8Ohm; 5.9W x 2 @ 6Ohm
Voltage - Supply：1.65V ~ 1.95V
Features：Depop, I2C, I2S, Mute, PWM, Short-Circuit and Thermal Protection
Mounting Type：Surface Mount
Supplier Device Package：42-WLSCP (3.13x2.46)
Package / Case：42-UFBGA, WLCSP
Operating Temperature：-40°C ~ 85°C (TA)
Grade：-
Qualification：-

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TFA9872CUK/N1Z

Overview

The TFA9872CUK/N1Z is a high-efficiency Class-D audio amplifier featuring an internal adaptive DC-to-DC converter that boosts the supply voltage to 9.5 V. It delivers up to 5.1 W average output power into an 8 Ω load at a 4.0 V battery supply. The device supports Speaker-as-Microphone (SaM) and Receiver-as-Microphone modes, enabling acoustic echo cancellation. It operates on a wide supply voltage range of 2.7 V to 5.5 V with low quiescent current consumption.

Feature Summary

Integrates an adaptive DC-to-DC converter for boosted supply voltage and enhanced audio headroom
Supports Speaker-as-Microphone and Receiver-as-Microphone feedback paths via dedicated PDM or TDM interfaces
Features configurable full-duplex I2S/TDM input interface supporting multiple sample frequencies
Includes comprehensive protection mechanisms such as thermal foldback, overcurrent, and undervoltage safeguards

Applications

Mobile phones and tablets
Portable Navigation Devices (PND)
Notebooks and netbooks
Internet of Things applications embedding high-quality audio

Procurement Notes

Verify the specific ordering suffix N1Z against the manufacturer's latest documentation to confirm package dimensions and pin configuration. Ensure compatibility with the required digital audio interfaces and control protocols before finalizing procurement specifications.

Selection Notes

Select this component for designs requiring high efficiency and integrated boost conversion in space-constrained environments. Consider the WLCSP42 package size and the need for external passive components for the DC-to-DC converter when planning the PCB layout.

Part Context

This part belongs to the TFA987x series of high-efficiency Class-D amplifiers from NXP Semiconductors. It is designed specifically for portable mobile devices where power efficiency and audio quality are critical. The series includes variants with different package options and configurations.