High-Efficiency Low Noise Large Volume Receiver Stereo TLTR-AGC 3rd Generation Smart K Audio Amplifier With FM Mode

AW87349 is specifically designed to improve the musical output dynamic range, enhance overall sound quality. It is a new high efficiency, low noise, constant large volume, 3rd generation Smart K audio amplifier. AW87349 integrates AWINIC's proprietary Triple-Level Triple-Rate AGC audio algorithm, effectively eliminating music noise and improving sound quality and volume. AW87349 integrated high voltage DO-Chargepump technology with efficiency up to 90%, significantly improving the dynamic range of the music output. AW87349 noise floor is as low as to 38μV at speaker mode, with 102dB high signal-to-noise-ratio(SNR). The ultra-low  distortion  0.02%  and  unique  Triple-Level Triple-Rate AGC technology bring high quality music enjoyment. AW87349 supports speaker(SPK) and high power receiver (RCV) stereo applications, supports speaker and receiver 2-in-1 applications, class AB/D receiver optional. Class AB receiver has 9μV ultra-low noise and -95dB high PSRR performance to completely suppress TDD-noise. AW87349 controls internal registers through the I 2 C interface. Register parameters include chargepump output voltage, power amplifier gain, Triple-Level Triple-Rate AGC parameters, etc.


l  Triple-Level Triple-Rate AGC algorithm to effectively eliminate noise, pure sound quality

l  Innovation high efficient, large drive high voltage 2X DO- Chargepump, efficiency up to 90%

l  Highest voltage8.5V

l  Hardware compatible with AW87319CSR

l  Low noise

n  9μV (Class AB Receiver THD+N=0.4%)

n  16 μV (Class D Receiver THD+N=0.02%)

n  38 μV (Class K Speaker THD+N=0.02%)

n  38 μV (FM Mode Class AB Speaker THD+N=0.28%)

l  Support high power receiver stereo application

l  Selectable speaker-guard power level:0.5W~1.5W@8ohm, 100mW/step

l  Selectable receiver-guard power level

n  0.1W~1.5W@8ohm,100mW/step

n  0.025W~0.375W@32ohm, 25mW/step

l  Output Power:3W@8Ω 3.5W@6Ω

l  Speaker & AB/D receiver 2-in-1 mode application

l  Shutdown current:0.1μA

l  Super TDD-Noise suppression

l  Excellent pop-click suppression

l  Support 1.8V logic I2C control

l  High PSRR-95dB217Hz

l  Small 2.545mm*2.075mm CSP-18B package


Application note

Product name Type Size Download
AW87349CSR PDF 2.0M
  • Voltage(V)
    Boost Type
    R=8Ω THD=1%
    Package (mm)
  • AW87349CSR

    DO-Chargepump (inductor free)
    WLCSP 2.55X2.08-18B
  • AW87329CSR

    DO-Chargepump (inductor free)
    WLCSP 2.54X2.07-18B
  • AW87318CSR

    K-Chargepump (inductor free)
    WLCSP 1.6X1.68-14B
Package form Number of pins Long(mm) Width(mm) Thick(mm) Pin spacing(mm) Heat sink Package drawing
WLCSP 2.545×2.075×0.593-18B 18 2.545 2.075 0.593 0.5 N
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