TPA6203A1

单声道、全差动 AB 类音频放大器

The is a 1.25-W mono fully differential amplifierdesigned to drive a speaker with at least 8-Ω impedance while consuming less than 37 mm2 ZQV package option total printed-circuit board PCB area in most applications. This device operates from 2.5 V to 5.5 V, drawing only 1.7 mA of quiescent supply current. The TPA6203A1 is available in the space-saving 2 mm x 2 mm MicroStar Junior BGA package, and the space saving 3 mm x 3 mm QFN DRB package.

Features like 85-dB PSRR from 90 Hz to 5 kHz, improved RF-rectification immunity, and small PCB area makes the TPA6203A1 ideal for wireless handsets. A fast start-up time of 4 µs with minimal pop makes the TPA6203A1 ideal for PDA applications.

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1.25 W Into 8 Ω From a5-V Supply at

THD = 1% Typical

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Low Supply Current: 1.7 mA Typical

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Shutdown Control < 10 µA

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Only Five External Components

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Improved PSRR 90 dB and Wide Supply Voltage 2.5 V to 5.5 V for Direct Battery Operation

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Fully Differential Design Reduces RF

Rectification

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Improved CMRR Eliminates Two Input Coupling Capacitors

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CBYPASS Is Optional Due to Fully Differential Design and High PSRR

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Avaliable in a 2 mm x 2 mm MicroStar

Junior BGA Package GQV, ZQV

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Available in 3 mm x 3 mm QFN Package DRB

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Available in an 8-Pin PowerPAD MSOP DGN

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APPLICA ONS

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Designed for Wireless or Cellular Handsets and PDAs