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Product Spec Banner
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RT9101 是輸出功率為 2.65W 的高效D類音訊功率放大器，它集成了低阻抗的功率 MOSFET ，可通過外部輸入電阻進行增益設定，無需使用輸出濾波器，降低了外部元件數量、PCB 空間佔用和系統成本。</br>借助工作在 5V 供電下的能力，RT9101 可以 10% 的 THD+N 指標在 4Ω 的揚聲器負載上持續輸出平均 2.65W 的功率，如果功率降至 2W ，則 THD+N 指標可以降至 0.5% 。與典型的 AB 類放大器相比，RT9101 在驅動揚聲器上表現出更高的效率。當工作在 3.6V 電壓下時，用它驅動 8Ω 揚聲器輸出 400mW 功率的效率可以達到 88%。</br>它非常適合功率敏感的應用，例如行動電話和其它電池供電設備。它還具有快速建立工作狀態的能力，這對減小開關機過程中的音訊衝擊聲意義重大。另外，它還集成了過溫保護和過流保護電路。</br>RT9101 可以 WDFN-8L 3x3 和 WL-CSP-9B 1.45x1.45(BSC) 的超小型封裝供貨。
RT9101 電路圖
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<div class="spec-list"><ul class="lv1"><li>寬工作電壓範圍：2.5V~5.5V </li><li>與 8Ω 揚聲器配合高效工作的能力 </li><li>400mW 時效率為88% </li><li>100mW 時效率為80% </li><li>很低的靜態電流和關機電流消耗 </li><li>優化的 PWM 輸出級，無需使用 LC 濾波器 </li><li>全差分設計降低了射頻整流，省卻了對旁路電容的需求 </li><li>內部生成 250kHz 開關切換頻率 </li><li>集成了音訊衝擊抑制電路 </li><li>符合 RoHS 規範，不含鹵素 </li></ul></div>
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RT9101 訂購資訊
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RT9101
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<div class="spec-list"><ul class="lv1"><li>Mobile Phones </li><li>Handsets </li><li>PDAs </li><li>Portable multimedia devices </li></ul></div>
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