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TDA1517ATW設計的8W BTL音頻功率放大技術

作者: 時間:2010-08-16 來源:網(wǎng)絡 收藏
或2 × 4 W SE器,在HTSSOP20封裝內(nèi)集成了AB類輸出器,可用作單聲道橋接負載()或立體聲單端(SE)連接,具有良好的波紋抑制以及AC和DC短路安全。本文介紹了主要特性,方框圖以及和SE連接應用框圖。

:8 W BTL or 2 × 4 W SE power amplifier

The TDA1517ATW is an integrated class-AB output amplifier contained in a plastic heatsink thin shrink small outline package (HTSSOP20). The device is primarily developed for multimedia applications.

TDA1517ATW 主要特性:

Requires very few external components

Flexibility in use: mono Bridge-Tied Load (BTL) and stereo Single-Ended (SE); it should be noted that in stereo applications the outputs of both amplifiers are in opposite phase

High output power

Low offset voltage at output (important for BTL)

Fixed gain

Good ripple rejection

Mode select switch (operating, mute and standby)

AC and DC short-circuit safe to ground and VP

Electrostatic discharge protection

Thermal protection

Reverse polarity safe

Capable of handling high energy on outputs (VP = 0 V)

No switch-on/switch-off plop

Low thermal resistance.

圖1。TDA1517ATW 方框圖

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