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NAU8224YG
NAU8224YG is a stereo high efficiency filter-free Class-D audio amplifier, which is capable of driving a 4Ω load with up to 3.1W output power. This device provides chip enable pin with extremely low standby current and fast start-up time of 3.4ms.
NAU8224YG features a highly flexible 2 wire interface with many useful gain settings. The gain can be selected from 24dB to -62dB (plus mute) by using 2 wire interface and GS pin.
NAU8224YG is ideal for the portable applications of battery drive, as it has advanced features like 87dB PSRR, 91% efficiency, ultra-low quiescent current (i.e. 2.1mA at 3.7V for 2 channels) and superior EMI performance. It has the ability to configure the inputs in either single-ended or differential mode.
Target Applications:
| • | Portable Audio Device/Speaker | |
| • | Portable Navigation Device | |
| • | Tablet PC | |
Key Features:
| • | Audio Input | |
| - | Stereo Differential/Single Ended Input | |
| - | DC PSRR Typ.@98dB | |
| - | CMRR Typ.@80dB | |
| • | Audio Output | |
| - | Powerful Stereo Class-D Amplifier | |
| - | 3.1W (4Ω @ 5V, 10% THD+N) | |
| - | 1.26W (4Ω @ 3.7V, 1% THD+N) | |
| - | 1.76W (8Ω @ 5V, 10% THD+N) | |
| - | 0.76W (8Ω @ 3.7V, 1% THD+N) | |
| - | Low Output Noise: 20 μVRMS @ 0dB gain | |
| • | Advance Feature | |
| - | Low Current Shutdown Mode | |
| - | Click-and Pop Suppression | |
| • | Operating Characteristics | |
| - | Voltage range: 2.5V ~ 5.5V | |
| - | Temperature range: -40°C ~ 85°C | |
| - | Low Quiescent Current: 2.1mA@3.7V / 3.2mA@5V for 2 channels | |
| • | Package | |
| - | QFN-20 (4x4mm) | |