| Power Supply (Min) (V) |
3 |
| Power Supply (Max) (V) |
5.5 |
| Digital Supply (Min) (V) |
1.65 |
| Digital Supply (Max) (V) |
1.95 |
| IO Supply (Min) (V) |
1.65 |
| IO Supply (Max) (V) |
1.95 |
| PVDD Voltage(V) |
6 |
| Boost Type |
K-Charge Pump (inductor free) |
| PO(W)
（8&THD=1%） |
1.7W@4.2V |
| SPK
Noise(uV) |
22uV@20dB |
| DSP |
NO |
| Protection |
Multi-Level AGC |
| Control Interface |
IIC |
| RCV mode |
YES |
| RCV
Noise(uV) |
15uV@17dB |
| Temperature |
-40℃~85℃ |
| Package (mm) |
QFN 3.5X3.5-24L |
Adaptive Charge Pump with total efficiency up to 84%
Supports Speaker, Receiver 2-in-1 application
High RF noise suppression, eliminate the TDD noise completely
Low noise: 15uV
THD+N: 0.02%
Extensive Pop-Click Suppression
I2S/TDM interface：
I2S, Left-Justified ａｎｄ Right-Justified
Supports four slots TDM
Input Sample Rates from 8kHz to 96kHz
Data Width: 16, 20, 24, 32 Bits
I2C-bus control interface(400kHz)
Power Supplies：
VDD：3.0V~5.5V
DVDD: 1.65V~1.95V
VDDIO:1.65V~3.6V
Short-Circuit Protection, Over-Temperature Protection, Under-Voltage Protection ａｎｄ Over-Voltage Protection
QFN 3.5X3.5-24L Package
The AW88308 is an I2S/TDM input, high efficiency digital Smart K audio amplifier with an integrated 6V adaptive charge pump, sound quality enhancement algorithms and speaker protection. Due to its 15μV noise floor and ultra-low distortion, clean listening is guaranteed. It can delivers 1.7W (RMS, THD+N = 1%) output power into an 8Ω speaker at a battery voltage of 4.2V.
The AW88308 integrates a high-efficiency adaptive charge pump as the Class-D amplifier supply rail. The output voltage of charge pump is only raised when necessary. This improves the output dynamic range of audio signal while limiting quiescent power consumption.
The AW88308 features AWINIC proprietary AGC algorithm that prevents clipping noise and improves sound quality.
The AW88308 supports speaker and receiver 2-in-1 applications. In the receiver application, it connects VDD directly to the Class-D amplifier power supply.
The AW88308 features high RF suppression and eliminates TDD noise completely benefited from the digital audio input interface. General settings are communicated via an I2C-bus interface, and the device address is configurable.
The AW88308 offers Short Circuit Protection, Over-Temperature Protection, Under-Voltage Protection and Over-Voltage Protection to protect the device.
AW88308 is available in QFN 3.5X3.5-24L package.
