| 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) （8&THD=1%） |
1.75W@4.2V |
| SPK Noise(uV) |
43uV@18dB |
| Protection |
Multi-Level AGC |
| Control Interface |
one-wire |
| RCV mode |
YES |
| RCV Noise(uV) |
11uV@0dB |
| Temperature |
-40℃~85℃ |
| Package (mm) |
WLCSP 1.575X1.575-14B |
Multi-Level AGC audio algorithm, effectively eliminates noise and makes sound smooth
Speaker and Receiver two-in-one application
Class AB Receiver Mode: 1V/V, Vn=11μV, THD+N=0.15%
Class K Speaker Mode: 8V/V, Vn=43μV, THD+N=0.008%
Power Amplifier’s Overall Efficiency is up to 83%
High PSRR: 100dB@217Hz
Selectable Speaker-Guard Power Level: 0.6W, 0.7W, 0.8W, 0.9W, 1.0W, 1.1W, 1.2W
Within Lithium Battery Voltage Range, Outputs Constant Large Volume
Support 6Ω Speaker
Upgrade for AW87318
Super TDD-Noise Suppression
Excellent Pop-Click Suppression
One-Wire Pulse Control
ESD Protection: ±6kV (HBM)
Small 1.575mm×1.575mm, 0.4mm Pitch CSP-14 Package
AW87328 is specifically designed to enhance overall sound quality. It is an upgrading 8th-generation class K audio amplifier with high efficiency, low noise, ultra-low distortion and capability of outputting constant large volume.
With integrated AWINIC proprietary Multi-Level AGC audio algorithm, AW87328 can eliminate noise in playback and improve sound quality and effect. Using a novel K-Chargepump technology, its integrated charge pump efficiency can reach 93%, and power amplifier’s overall efficiency can reach 83%. With high efficiency, AW87328 can greatly prolong smart phone usage time.
AW87328 noise floor is as low as to 43μV, with 98.8dB high signal-to-noise-ratio (SNR). The ultra-low distortion 0.008% brings high-quality musical enjoyment.
AW87328 has a setting of 7-step selectable speaker-guard output power level from 0.6W to 1.2W, suitable for different rated power speakers. Within lithium battery voltage range, it keeps output power constant, preventing voice from degrading.
AW87328 supports speaker and receiver two-in-one application. The Class AB Receiver Mode has an ultra-low output noise of 11μV and an ultra-high power supply noise suppression of -100dB@217Hz.
AW87328 has built-in over-current protection, over-temperature protection and short-circuit protection. AW87328 is available in a 1.575mm×1.575mm, 0.4mm pitch CSP-14 package.
