Mono Audio CODEC with Equalizer, speaker driver
NAU8814YG falls under the Audio CODEC Series developed by Nuvoton. It is a high-performance, cost effective and low power wideband MONO audio CODEC. The design of the NAU8814YG positions it as a perfect fit for voice telephony-related applications.
Function & Applications
The NAU8814YG delivers a range of various functions such as a 5-band Graphic Equalizer, Automatic Level Control (ALC) with noise gate, PGA, a standard audio interface like I2S and PCM with time slot assignment, and an in-built PLL. One differential microphone input and one single-ended auxiliary input are provided by the NAU8814YG. The audio path contains several gain control stages and incorporates a MONO line output and built-in BTL speaker driver.
The NAU8814YG has a wide range of applications. It can be used to support wired and wireless telephony, security systems, mobile telephone hands-free kits, and residential and consumer intercom systems.
Under the hood, the NAU8814YG is packed with Audio Codec Series key features which include an ADC feature with SNR (A-weighted): 91dB @ 0dB gain and THD+N: -79dB @ 0dB gain. DAC features include an integrated headset driver and integrated BTL speaker driver. Its SNR is 93dB @ 0dB gain and THD+N: -84dB @ RL=1Kohm.
Package Types, Interface & Pin Configuration
This Nuvoton product comes in a QFN-24 (4x4mm) package. It can cater to the I2S/PCM Input via its digital audio interface. Additionally, it houses an integrated programmable microphone amplifier with a low noise bias supply voltage.
Reliability & Lifespan
The operating characteristics of the NAU8814YG make it a reliable hardware. It operates with a voltage range (VDDB/C) of 1.71V to 3.6V and a voltage range (VDDA) of 2.5V to 3.6V. It operates efficiently within a temperature range of -40℃ to 85℃, making it adaptable to various industrial settings.
Standards & Certifications
The NAU8814YG is a part of Nuvoton's Audio Codec Series and adheres to the company's high standards of quality and functionality. Our analysis assumes that it meets all standard industry certifications, although specific certifications are not mentioned in the released tech spec.
Application Cases & Reference Designs
While Nuvoton has not provided specific application cases or reference designs for the NAU8814YG, its usage in telephony systems, both wired and wireless, security systems, and hands-free mobile kits, and residential and consumer intercom systems make it a versatile component for a multitude of audio related projects.
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