Description
The XPT9911 is an FM-free, class AB / D optional (D Class anti-break Sound) Power Amplifier.Maximum output power up to 12W（ 2Ω, BTL load, THD<10%), total harmonic loss in the audio range True noise is less than 1%.The application circuit of the XPT9911 is simple and requires only a pole A few peripheral devices with integrated feedback resistors;no external coupling is required for the output Capacitors or Bootstrap capacitors and buffer networks. The XPT9911 is available in an ESOP16 package and is particularly suitable for large tones Amount,small weight portable system.Xpt9911 internal with overheating self Dynamic shutdown protection mechanism; stable operation,gain bandwidth product up to 2.5 MHz, And unity gain stability.Feedback resistor built-in, by configuring the periphery Parameters can adjust the voltage gain of the amplifier and the best sound quality effect, square It will be applied.Is a video megaphone, HiFi megaphone and other 2 lithium batteries should With a perfect audio solution.
Features
No interference to FM,high efficiency,excellent sound quality
AB / D class switching
Unique adjustable anti-break Sound function
10W output power(10% THD,8.4 V supply,4Ω load）
8W output power(10% THD,7.4 V supply,4Ω load）
3.5 W output power(10% THD,5V supply,4Ω load）
Wide operating voltage range: 2.5 V~8.5 V
Th on power-down pop sound suppression
External gain adjustable, integrated feedback
Low shutdown current, low EMI
No need to drive output coupling capacitors,bootstrap capacitors, and buffer networks
Unity gain stability
Overheat protection,overvoltage protection
In ESOP16 package
Applications
Low-voltage audio system such as loudspeakers,USB, 2.1/2.0 multimedia audio
Portable DVD player
Portable speakers
LCD monitor/projection TV
Personal digital assistants (PDAs), laptops, etc.
Desktop computers
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