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            AW87317CSR

            High efficiency, Low noise, Ultralow distortion, Constant large volume, Upgrade Seventh generation Class K Audio Amplifier

            AW87317 is designed to enhance smart mobile phone sound quality, which is a new high efficiency, low noise, ultra-low distortion, constant large volume, upgrading seventh generation class K audio amplifier. Using a new generation  K-Chargepump  technology,  efficiency reaches 93%, power amplifier’s overall efficiency is up to 80%, greatly prolong the mobile phone usage time. The AW87317 noise floor is as low as to 53μV, with 97dB high signal-to-noise-ratio(SNR). The ultra-low distortion 0.008% and unique no-crack-noise (NCN) technology brings high quality music enjoyment. AW87317 has 0.6W, 0.8W, 1W and 1.2W four selectable speaker-guard output power levels, recommended using rated power of 0.5W and above speakers. AW87317 integrated unique NCN technology, the output power cannot drop along with lithium battery voltage lower down. Within lithium battery voltage range (3.3V--4.35V), output power is constant, preventing the voice becomes smaller and smaller during usage of cell phone. AW87317 supports speaker and receiver two-in-one application. In receiver mode, the output noise is as low as to 22uV, amplifier is in class D mode, powered by VBAT.

            產品特性

            l  Low noise 53μV

            l  Power amplifier overall efficiency 80%

            l  Ultra-low distortion 0.008%

            l  Speaker and Receiver two-in-one application

            l  Receiver 1V/V, Vn=22uV, THD+N=0.025%

            l  Receiver 3V/V, Vn=26uV, THD+N=0.025%

            l  Within Lithium battery voltage range, output power is maintained constant

            l  Selectable speaker-guard power level 0.6w, 0.8W,1W, 1.2W

            l  No-crack-noise (NCN) technology

            l  Super TDD-Noise suppression

            l  Excellent pop-click suppression

            l  One wire pulse control

            l  High PSRR -68dB 217Hz

            l  ESD protection ±6kV (HBM)

            l  Small 0.4mm pitch 1.6mm×1.68mm CSP-14package

            Datasheet

            Application note

            產品型號 文檔格式 大小 下載
            AW87317CSR PDF 1.6M
            • Voltage(V)
              Boost Type
              R=8Ω THD=1%
              Protection
              Receiver
              Package (mm)
            • AW87317CSR

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

              6.05
              K-Chargepump (inductor free)
              1.75W@4.2V
              Single-Level-AGC
              -
              WLCSP 1.6X1.68-14B
            封裝形式 引腳數 長(mm) 寬(mm) 厚(mm) 引腳間距(mm) 散熱盤 文檔下載
            WLCSP 1.68×1.6×0.575-14B 14 1.68 1.6 0.575 0.4 N
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            国产疯狂女同互磨高潮在线看