Nuvoton Technology NAU8421
The NAU8421 is a high quality 24-bit stereo DAC with 8Vpp differential analog output capability, 128dB SNR and -99dB THDN. This device includes an I2C control interface with additional pin selectable features and standalone operation. The NAU8421 operates from a 3.3V digital IO supply voltage and an analog 5V supply voltage.GENERAL DESCRIPTION
Additionally, the NAU8421 includes automatic clock detection sequences for smooth power up & power down control. This enables fast and efficient system integration. The NAU8421 is specified for operation from -40°C to +85°C, it is packaged in a cost-effective and space-saving 32-pin QFN package. KeyFEATURES
● Operating voltage: 3.0-5.5V● Up to 192 kHz audio sample rate
● Full 8Vpp output using only 5Vdc supply
● Fully differential analog outputs
● Low cost, small footprint package
● Automatic clock detection and output muting for power-on and no-signal conditions
● 128dB SNR A-weighted performance
● -99dB THD+N
● 105dB PSRR at 1kHz
● 140dB channel separation at 1kHz
● I2S slave supporting up to 192 kHz sample rate determined by clock frequency ratios
● Low external parts count
● High system noise immunity
● Package: Green QFN-32
● Package is Halogen-free, RoHS-compliant and TSCA-compliant
● Operating temperature range: -40 ~ +85°C
APPLICATIONS
● Digital Musical In...