| Power Supply (Min) (V) |
3.0 |
| Power Supply (Max) (V) |
5.5 |
| PVDD Voltage(V) |
6.05 |
| Boost Type |
K-Charge Pump (inductor free) |
| PO(W) （8Ω&THD=1%） |
1.75W@4.2V |
| SPK Noise(uV) |
43uV@8V/V |
| Protection |
Multi-Level AGC |
| Control Interface |
one-wire |
| RCV mode |
YES |
| RCV Noise(uV) |
19uV@1V/V
22uV@3V/V |
| Temperature |
-40℃~85℃ |
| Package (mm) |
WLCSP 1.6X1.68-14B |
• Multi-Level AGC audio algorithm，effectively eliminate noise, make sound pure natural
• Low noise：43μV
• Ultra-low distortion：0.008%
• Power amplifier overall efficiency is up to 83%
• Speaker and Receiver two-in-one application
• Receiver：1V/V，Vn=19uV，THD+N=0.025%
• Receiver：3V/V，Vn=22uV，THD+N=0.025%
• Selectable speaker-guard power level：0.6W, 0.7W, 0.8W, 0.9W, 1W, 1.1W, 1.2W
• Within Lithium battery voltage range, maintained constant large volume
• Compatible with AW8736，AW8737，AW87317
• Super TDD-Noise suppression
• Excellent pop-click suppression
• One wire pulse control
• High PSRR：68dB（217Hz）
• ESD protection：±6kV (HBM)
• Small 0.4mm pitch 1.6mm×1.68mm CSP-14package
AW87318 is specifically designed to eliminate smart mobile phone music noise, to enhance overall sound quality, which is a new high efficiency, low noise, ultra-low distortion, constant large volume, upgrading eighth generation class K audio amplifiers. AW87318 integrated Awinic proprietary Multi-Level AGC audio algorithm, effectively eliminate music noise, improve sound quality and volume. Using a new generation K-Chargepump technology, efficiency reaches 93%, power amplifier’s overall efficiency reaches 83%, greatly prolong the mobile phone usage time. AW87318 noise floor is as low as to 43uV, with 98.8dB high signal-to-noise-ratio (SNR). The ultra-low distortion 0.008% and unique Multi-Level AGC technology brings high quality music enjoyment.
AW87318 has 0.6W, 0.7W, 0.8W, 0.9W, 1W, 1.1W and 1.2W seven subdivision selectable speaker-guard output power levels, which is suitable for different rated power speakers. With multi-level AGC audio algorithms, the music is pure natural and melodious. Within lithium battery voltage range (3.3V--4.35V), output power is constant, preventing voice becomes smaller and smaller during usage of cell phone.
AW87318 supports speaker and receiver two-in-one application. In receiver mode, the output noise is as low as to 19uV, amplifier is in class D mode, powered by VBAT.
AW87318 has built-in over current protection, over-temperature protection and short circuit protection function, effectively protect the chip. AW87318 uses small 0.4mm pitch 1.6mmx1.68mm CSP-14 package.
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