RT5509 Description
The RT5509 is a mono BTL class-D amplifier with cutting-edge speaker protection algorithm. Also, a built-in DC-DC step-up converter is used to provide efficient power for class-D amplifier. I2S interface supports two different audio sources while a pair of auxiliary DATAI/O is used for stereo mode or pass-through application.
RT5509 Key Features
- Class-D Speaker AMP
- 4.3W Output Power @ 9.5V, 8 Load, THD < 1%
- 0/3/6/9/12/15/18dB Boost Gain
- 20V Output Noise @ 0dB Gain
- Boost Converter
- Adaptive Boost for Speaker, Boost from Battery Supply Up to Programmed Voltage, Max 9.5V
- Power Modes : Adaptive Boost, Fixed Boost, Bypass Mode
- Switching Frequency 2MHz, Maximum Output Current 1.5A
- Support CCM / DCM pensation, Feedback AD
- Digital Part : Voltage Loop in Boost Mode