Nuvoton Technology Corporation NAU88C22YG
| Parameters | |
|---|---|
| HTSUS | 8542.39.0001 |
| Series | - |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Package / Case | 32-WFQFN Exposed Pad |
| Mfr | Nuvoton Technology Corporation |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Type | Audio |
| Supplier Device Package | 32-QFN (5x5) |
| Data Interface | I²S, PCM |
| Resolution (Bits) | 24 b |
| Voltage - Supply, Analog | 2.5V ~ 3.6V |
| Voltage - Supply, Digital | 1.65V ~ 3.6V |
| Sigma Delta | Yes |
| Number of ADCs / DACs | 2 / 2 |
| Dynamic Range, ADCs / DACs (db) Typ | - |
| S/N Ratio, ADCs / DACs (db) Typ | 90 / 94 |
| Package | Tray |
| Product Status | Active |
| Base Product Number | NAU88C22 |
| REACH Status | REACH Unaffected |
| Standard Package | 490 |
| ECCN | EAR99 |
The NAU88C22YG is a low-power, high-quality 24-bit stereo audio codec with a speaker driver, designed by Nuvoton Technology Corporation for portable and general-purpose audio applications. It features precision 24-bit stereo ADCs (Analog-to-Digital Converters) and DACs (Digital-to-Analog Converters), and integrates a broad range of additional functions to simplify the implementation of complete audio system solutions. The device is available in a QFN-32 (5x5mm) package and operates within an industrial temperature range of -40°C to +85°C.
Audio Interface NAU88C22YG Features
The NAU88C22YG offers several key features that make it a versatile audio codec solution:
1. High-Performance Audio Processing: It includes precision 24-bit stereo ADCs and DACs, with ADC SNR (Signal-to-Noise Ratio) of 89dB and DAC SNR of 89dB. The ADC has a THD+N (Total Harmonic Distortion plus Noise) of -78dB, while the DAC has a THD+N of -84dB.
2. Integrated Drivers: The codec includes an integrated BTL (Bridge-Tied Load) speaker driver capable of delivering 1W into an 8Ω speaker, and a headset driver that can provide 40mW into a 16Ω load.
3. Advanced Signal Processing: It features a 5-band equalizer, a 3-D audio enhancer, and programmable automatic level control (ALC) for microphone or line input. The ADC also supports notch filtering and high-pass filtering for specific application requirements such as wind noise reduction.
4. Digital Audio Interface: The NAU88C22YG supports standard audio interfaces like I²S and PCM, and can operate as either a master or a slave.
5. Power Management: The device operates with analog supply voltages from 2.5V to 3.6V, while the digital core can run at 1.7V to conserve power. The speaker outputs can use a separate 5V supply to increase output power.
NAU88C22YG Applications
The NAU88C22YG is suitable for a wide range of applications, including:
Personal Media Players
Smartphones
Personal Navigation Devices
Portable Game Players
Camcorders and Digital Still Cameras
Portable TVs
Stereo Bluetooth Headsets
Wired/Wireless Telephony
Security Systems
Mobile Telephone Hands-free Kits
Residential & Consumer Intercoms
The NAU88C22YG offers several advantages that make it an ideal choice for audio applications:
· High Audio Quality: The high SNR and low THD+N of the ADC and DAC ensure excellent audio performance.
· Integrated Solution: The integration of ADCs, DACs, speaker drivers, headphone drivers, and programmable microphone amplifiers reduces the need for external components.
· Flexible Power Management: The ability to operate at different voltage levels and the inclusion of power-saving modes make it suitable for battery-powered devices.
· Advanced Signal Processing: The on-chip DSP functions such as the 5-band equalizer and 3-D audio enhancer provide enhanced audio experience.
· Wide Operating Temperature Range: The industrial temperature range ensures reliable performance in various environmental conditions.
