2.8W FILTER-FREE MONO CLASS D AUDIO POWER AMPLIFIER

DESCRIPTION
The UTC DPA5V3F is a differential class-D BTL power amplifier. It can drive up to 2.2W into a 4Ω load and 1.4W into an 8Ω load at 5V. It achieves outstanding efficiency (88% typ.) compared to standard AB-class audio amps. The gain of the device can be controlled via two external gain setting resistors. Pop & click reduction circuitry provides low on/off switch noise while allowing the device to start within 5ms. A standby function (active low) enables the current consumption to be reduced to 10nA typical.

FEATURES
* Operating from VCC=2.4V~5.5V
* Standby mode active low
* Low current consumption 2mA at 3V
* Adjustable gain via external resistors
* Output power: 2.8W into 4Ω and 1.7W into 8Ω with 10% THD+N maximum and 5 V power supply
* Output power: 2.2W at 5V or 0.7W at 3.0V into 4Ω with 1% THD+N maximum
* Output power: 1.4W at 5V or 0.5W at 3.0V into 8Ω with 1% THD+N maximum
* PWM base frequency: 280kHz
* Efficiency: 88% typical
* Signal to noise ratio: 85dB typical
* PSRR: 63dB typical at 217Hz with 6dB gain
* Low pop & click noise