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AW87347CSR

High Efficiency, Low Noise, Ultra-Low Distortion, Constant Large Volume, Upgrade 7th -Generation Class K Audio Amplifier with Ultra-Low Distortion Audio Analog Switch and FM Mode

AW87347 is specifically designed to enhance overall sound quality. It is an upgrading 7 th -generation class K audio amplifier with high efficiency, low noise, ultra-low distortion and capability of outputting constant large volume. With integrated AWINIC proprietary NCN output AGC audio algorithm, AW87347 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 80%. With high efficiency, AW87347 can greatly prolong smart phone usage time. AW87347 has a setting of 4-step selectable speaker- guard output power level from 0.6W to 1.2W, suitable for different rated power speakers. AW87347 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. The Direct Mode using audio analog switch can realize ultra-low THD of 0.001% and ultra-high suppression of power supply of -100dB@217Hz. AW87347 supports FM Mode by using Class AB power amplifier. It makes no interference from output signal for FM Application. Under FM Mode, AW87347 has a setting of 4-step selectable speaker-guard output power level from 0.65W to 1.2W.

Characteristic

l  Speaker and Receiver two-in-one application

n  Analog Switch Direct Mode: Vn<1uV,THD+N=0.001%

n  Class AB Receiver Mode: 1V/V, Vn=11μV,THD+N=0.15%

n  Class K Speaker Mode: 8V/V, Vn=53μV,THD+N=0.008%

n  FM Mode: 8V/V, Vn=48μV, THD+N=0.15%

l  Power Amplifier’s Overall Efficiency: 80%

l  High PSRR: -100dB@217Hz

l  Selectable Speaker-Guard Power Level

n  Class K Speaker Mode: 0.6W, 0.8W, 1.0W,1.2W

n  FM Mode: 0.65W, 0.8W, 1.0W, 1.2W

l  Within Lithium Battery Voltage Range,Outputs Constant Large Volume

l  Compatible with AW87337

l  No-Crack-Noise (NCN) Technology

l  Super TDD-Noise Suppression

l  Excellent Pop-Click Suppression

l  One-Wire Pulse Control

l  ESD Protection: ±6kV (HBM)

l  Small 1.575mm×1.575mm, 0.4mm Pitch CSP-16 Package

Datasheet

Application note

Product name Type Size Download
AW87347CSR PDF 1.9M
  • Voltage(V)
    Boost Type
    R=8Ω THD=1%
    Protection
    Receiver
    Package (mm)
  • AW87347CSR

    6.05
    K-Chargepump (inductor free)
    1.75W@4.2V
    Single-Level-AGC
    WLCSP 1.575X1.575-16B
  • AW87327CSR

    6.05
    K-Chargepump (inductor free)
    1.75W@4.2V
    Single-Level-AGC
    WLCSP 1.575X1.575-14B
  • AW87317CSR

    6.05
    K-Chargepump (inductor free)
    1.75W@4.2V
    Single-Level-AGC
    -
    WLCSP 1.6X1.68-14B
  • AW8737SCSR

    6.05
    K-Chargepump (inductor free)
    1.75W@4.2V
    Single-Level-AGC
    -
    WLCSP 1.6X1.68-14B
Package form Number of pins Long(mm) Width(mm) Thick(mm) Pin spacing(mm) Heat sink Package drawing
WLCSP 1.575×1.575×0.575-16B 16 1.575 1.575 0.575 0.4 N
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