The NAU88C22 is a low-power, high-quality transcoder for portable and general-purpose audio applications. In addition to the accurate 24-bit stereo ADC and DAC, the device incorporates a wide range of additional features to simplify the implementation of a complete audio system solution. The NAU88C22 includes a speaker driver, headphones, and differential or stereo line outputs, and integrates a preamplifier for a stereo differential microphone to significantly reduce the need for external components. In addition, fractional PLL can be used to accurately generate any audio sampling rate from 8kHz to 192kHz for the transcoder using any available system clock from 8MHz to 33MHz.
Its advanced on-chip digital signal processing includes a 5-band equalizer, a 3-D audio intensifier, a mixed-signal automatic alignment control for microphones or line inputs via the ADC, and a digital limiter for playback paths with a dynamic range compressor function. Additional digital filtering options are available in the ADC path to simplify the implementation of application-specific requirements such as wind noise reduction and voice tape enhancement. The digital audio input and output interface can be operated by either the master or slave device.
NAU88C22 can be used from 25v to 3The 6V class** voltage operates, while its digital core is capable of running at 17V voltage operation to conserve power. The speaker BTL output pair and the two auxiliary line outputs can be operated with 5V to increase the output power capacity, allowing the NAU88C22 to drive 1 watt of power to an external speaker. Its built-in scratchpad control can turn off the power of the crystal node in a software-controlled manner to provide a flexible power-saving mode.
Brand: Nuvoton
Product Family: Interface - Audio Interface Chips.
Packing: Pallets.
Part Status: Active.
Type: Audio.
Data interfaces: I2S, PCM
Resolution (bits): 24 b
ADC DAC number: 2 2
Trigonometric Integral: Yes.
Signal-to-noise ratio, ADC DAC (dB) (typical): 90-94
Dynamic Range, ADC DAC (dB) Typical: -
Voltage-Power Supply, Analog: 25v ~ 3.6v
Voltage-Power Supply, Digital: 165v ~ 3.6v
Operating temperature: -40°C 85°C
Product package: 32-WFQFN
1.High-performance audio codec: It supports a variety of audio codec formats, including AAC and AW, which can meet the requirements of high-fidelity audio processing.
2.Rich audio interfaces: It has a variety of audio input and output interfaces, including I2S, PCM, etc., which is convenient for connecting with external audio devices.
3.High-performance ADC DAC: Built-in high-performance analog-to-digital Digital-to-analog converter enables high-quality audio capture and output.
4.Low-power design: Operates in low-power mode, suitable for mobile audio devices and portable audio products.
Common applications of NAU88C22YG include, but are not limited to:
1.Portable audio devices: such as ***, portable audio recording devices, etc.
2.Smart audio products: such as smart speakers, smart headphones, voice recognition devices, etc.
3.Car audio system: used in car audio system, including car entertainment system, car communication equipment, etc.
4.Home audio equipment: such as home theater systems, hi-fi audio equipment, etc.
If you need data sheets, sample testing, procurement, BOM matching and other needs, **Customer Service WeChat: 13310830171.