NJU8721V-TE1

Description：IC AMP CLASS D STER 80MW 20SSOP
Series：-
Mfr：Nisshinbo Micro Devices Inc.
Package：Tape & Reel (TR)

SKU:b2ee25f6969e Category: Audio Amplifiers Brand: Nisshinbo Micro Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC AMP CLASS D STER 80MW 20SSOP
Series：-
Mfr：Nisshinbo Micro Devices Inc.
Package：Tape & Reel (TR)
Type：Class D
Output Type：Headphones, 2-Channel (Stereo)
Max Output Power x Channels @ Load：80mW x 2 @ 8Ohm
Voltage - Supply：2.4V ~ 3.6V
Features：Digital Inputs, I2S, Mute, PWM, Standby
Mounting Type：Surface Mount
Supplier Device Package：20-SSOP
Package / Case：20-LSSOP (0.173", 4.40mm Width)
Operating Temperature：-40°C ~ 85°C (TA)
Grade：-
Qualification：-

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NJU8721V-TE1

Overview

The NJU8721V-TE1 is a Class D headphone amplifier from Nisshinbo Micro Devices Inc. It features sixth-order delta-sigma modulation and an internal digital filter. The device supports stereo output with up to 50mW per channel into 16 ohms at 3.3V, or 80mW into 8 ohms. Operating voltage ranges from 2.4V to 3.6V for logic and up to 5.25V for the driver supply. It includes a digital attenuator, mute function, and de-emphasis circuits for sampling frequencies of 32kHz, 44.1kHz, and 48kHz.

Feature Summary

Integrates sixth-order delta-sigma modulation and PWM conversion for high power efficiency.
Includes an internal eight-fold oversampling digital filter to reduce aliasing noise.
Supports serial audio interfaces including I2S, MSB Justified, and LSB Justified formats.
Features programmable digital attenuation, mute control, and de-emphasis functions.

Applications

Portable digital audio sets
Digital radios
Headphone amplifiers

Procurement Notes

Verify the specific package variant required, as the NJU8721 series is available in both SSOP20 and QFN28 outlines. Confirm that the V-TE1 suffix corresponds to the intended packaging configuration before finalizing orders. Ensure compatibility with the system's digital audio interface timing requirements.

Selection Notes

Select this component for applications requiring high-efficiency Class D amplification in portable devices. It is suitable for designs utilizing single-supply operation with separate logic and driver rails. Consider the external LC filter requirements for converting the PWM output to analog signals when designing the circuit layout.

Part Context

This part belongs to the NJU8721 family of Class D headphone amplifiers designed for digital audio applications. The series utilizes CMOS technology to achieve high power efficiency and low distortion. It is engineered to replace traditional linear amplifiers in battery-operated consumer electronics where size and power consumption are critical constraints.