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NAU88L21YG

Name: NAU88L21YG
Rating: 4.7 (12 reviews)

STEREO AUDIO CODEC WITH CLASS-G

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製造商。部分 #NAU88L21YG
包 32-WFQFN Exposed Pad
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規格

Supplier	Nuvoton Technology Corporation
Package	Tray
ProductStatus	Active
Type	Audio
DataInterface	I²C, I²S, PCM, Serial
Resolution(Bits)	24 b
NumberofADCs/DACs	2 / 2
SigmaDelta	Yes
S/NRatioADCs/DACs(db)Typ	105 / 103
Voltage-SupplyAnalog	1.62V ~ 1.98V
Voltage-SupplyDigital	1.62V ~ 3.6V
OperatingTemperature	-40°C ~ 85°C (TA)
MountingType	Surface Mount
Package/Case	32-WFQFN Exposed Pad

概述

Description

NAU88L21YG is a stereo audio CODEC from Nuvoton (NAU series). It provides both analog-to-digital and digital-to-analog conversion, a built‑in headphone driver, and microphone bias for playback and voice capture in one chip. It communicates with a host MCU over I2C for control and uses a digital audio bus (I2S/PCM) for audio data. Typical features include 2-channel ADC/DAC, programmable digital volume and mute, clock management, and various power-down modes for low power operation. The “YG” suffix designates a specific package variant. It’s suitable for portable devices, wearables, and embedded audio in PCs or IoT systems. For exact specs, pinout, and register map, consult the NAU88L21YG datasheet and reference designs.

Features

NAU88L21YG is a two‑channel stereo audio CODEC (ADC/DAC) with a flexible digital interface and I2C control. Key features include:
- 2-channel ADC and DAC with selectable 16/20/24-bit data paths
- Flexible digital interface: I2S, Left-Justified, PCM; master or slave mode
- Typical sampling rates up to 48 kHz
- Analog front end: mic bias with differential or single-ended inputs; line-in
- Analog outputs: stereo path (line/headphone capable with external amp)
- Digital volume control and mute (with smooth ramp)
- Clocking: supports MCLK, BCLK, WCLK; programmable PLL
- Power management: multiple power-down modes for low power
- I2C control for full register configuration
Ideal for portable/embedded audio in voice and multimedia applications.

Package

NAU88L21YG uses a 28-pin QFN package, typically 4×4 mm (Pb-free/green).

Pinout

Pin count: 28 pins (QFN package).
Function: NAU88L21YG is a stereo audio CODEC with integrated ADC/DAC, analog front-end (mic bias, line-in/out, headphone/speaker drivers) and digital interface (I2S/PCM).

Manufacturer

NAU88L21YG is manufactured by Nuvoton Technology Corporation. Nuvoton is a Taiwanese semiconductor company that designs and sells integrated circuits (including audio codecs and microcontrollers) and is typically described as a fabless semiconductor company (outsourcing fabrication to foundries).

Application

NAU88L21YG is a stereo audio CODEC with integrated DAC/ADC and headphone amp. Applications include:
- Mobile/portable devices (smartphones, tablets, notebooks)
- USB audio interfaces and sound cards
- Bluetooth/USB speaker systems and smart speakers
- Voice conferencing/VoIP devices
- Voice recorders and cameras
- Multimedia players and notebook audio accessories

Equivalent

NAU88L21YG is a 2-channel stereo audio CODEC with ADC/DAC and integrated headphone driver (I2S interface). Equivalents include:
- TI TLV320AIC23B
- Cirrus Logic WM8731
- NXP SGTL5000
- Analog Devices ADAU1701 / ADAU1761
Note: pinouts and DSP features vary; verify datasheets for exact replacement compatibility.