PAM8902中文资料audio数据手册Diodes规格书

描述 Description

The PAM8902 is a mono, Class-D audio amplifier with integrated boost converter designed for piezo and ceramic speakers.The PAM8902 is capable of driving a ceramic/piezo speaker with 30VPP(10.6Vrms) from a 3.6V power supply.The PAM8902's Boost converter operates at a fixed frequency of 1.5MHz, and provides a 17.5V supply with a minimum number of external components. PAM8902 features an integrated audio low pass filter that rejects high frequency noise thus improving audio fidelity. And three gain modes of 18dB, 22dB and 26dB for ease of use. PAM8902 also provides thermal, short, under- and over-voltage protection. The PAM8902 is available in a 16-ball 1.95mm x 1.95mm CSP package and 16-pin QFN4x4 package.

特性 Features

Supply Voltage Range From 2.5V to 5.5V
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\t\t30 VPP Output Load Voltage From a 2.5V Supply
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\t\tIntegrated Boost Converter Generates 17.5V Supply
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\t\tProgrammable Soft-Start
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\t\tSmall Boost Converter Inductor
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\t\tSelectable Gain of 18dB, 22dB, and 26dB
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\t\tSelectable Boost Output Voltage of 8V, 12V and 17.5V
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\t\tLow Shutdown Current: < 1μA
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\t\tBuilt-in Thermal, OCP, OVP, Short Protection
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\t\tAvailable in Space Saving Packages:
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\t\t16-ball 1.95mmx1.95mm CSP Package
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\t\t16-pin QFN4x4 Package

应用 Application

Wireless or Cellular Handsets
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\t\tPortable DVD Player
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\t\tPersonal Digital Assistants (PDAs)
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\t\tElectronic Dictionaries
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\t\tDigital Still Cameras