PAM8902A中文资料audio数据手册Diodes规格书

描述 Description

The PAM8902A is a mono, Class-D audio amplifier with integrated boost convertor designed for piezo and ceramic speakers. The PAM8902A is capable for driving a ceramic/piezo speaker with 30VPP(0.6Vrms) from a 3.6V power supply. The PAM8902A's boost converter operates at a fixed frequency of 1.5MHz and provides a 17.5V supply with a minimum number of external components. The three gain mode of 18dB, 22dB and 26dB is easy for using. PAM unique ant i -saturat ion technology which detects output signal clip due to the over level input signal suppress the output signal clip automatically. PAM8902A features an integrated audio low pass filter that rejects high frequency noise, thus improving audio fidelity. PAM8902A also provides thermal, over current, under and over voltage protection. The PAM8902A 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 2.7V to 5.5V package.
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\t\t30VPP Output Load Voltage from a 2.7V 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\tUnique Anti-Saturation Function
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\t\tSmall Boost Converter Inductor
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\t\tSelectable Gain of 18dB, 22dB, and 26dB (Refer to “Application Notes”)
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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\tBuild in Thermal, OCP, UVLO, OVP
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\t\tAvailable in Space Saving Packages: - 16-ball 1.95mm x 1.95mm CSP package - 16-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