GENERAL DESCRIPTION
The TMPA208DS is a stereo class-D audio power
amplifier with volume control. It delivers up to
2.5W/ch(5W in all) into a 3 ohm load or 2W/ch(4W
in all) into a 4 ohm load or 1.25W/ch(2.5W in all)
into an 8 ohm load.
With differential input structure, TMPA208DS
features high Common Mode Rejection Ratio and
Power Supply Rejection Ratio.
Analog input signal is converted into digital
output whICh drives directly to the speaker. High
power efficiency is achieved due to digital output
at the load. The audio information is embedded in
PWM（Pulse Width Modulation）.
DC volume control is convenient for LCD
projectors, LCD monitors, powered speakers, and
other consumer products especially when using
remote control.
APPLICATIONS
Multimedia application includes Cellular Phones,
PDAs, DVD/CD players, TFT LCD TVs/Monitors,
LCD Projectors, 2.1 channel audio systems,
Powered Speakers, USB audio. It is also ideal for
other portable devices like Wireless Radios.
FEATURES
2.5V to 6V Single Supply
Up to 5Wrms Max. Power or 2.5Wrms/ch.
Up to 86% Power Efficiency
3mA /Ch Quiescent Current
Less Than 0.2uA /Ch Shutdown Current
Pop-less Power-Up, Shutdown and Recovery
Differential 230 KHz PWM Allows Bridge-Tied Load to
Increase Output Power
DC Volume Control
BTL Output Requires No Output Capacitors
Thermal Shutoff and Automatic Recovery
Output Pin Short-Circuit Protection (Short to Other
Outputs, Short to VCC, Short to Ground)
Compatible with earphone application
Differential Signal Processing Improves CMRR &
Eliminates Power Regulation
PACKAGE
TSSOP20 Available, pb free【RoHS】