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APA3175
Active
20W Stereo Digital Class-D Audio Power Amplifier with EQ and DRC
Features
- Speaker Protection
- Night-Mode Listening
General Description
The APA3175 is a digital input, stereo, high efficiency, Class-D audio amplifier available in a TQFP7x7-48P package. The APA3175 accepts the digital serial audio data and using the digital audio processor to convert the audio data becomes the stereo Class-D output speaker amplifier. This provides the seamless integration between the codec and the speaker amplifier. The APA3175 is a slave device receiving clocks from external source, and the Class-D’s PWM switching frequency is 352.8kHz for the sampling rate 44.1kHz or 384kHz for sampling 48kHz, depend on the input signal’s sampling rate.
Features
- Operating Voltage: 4.5V~24V for PVDD
- High Efficiency Class-D Operation Eliminate the Need of Heatsinks
- Digital Serial Audio Input (Stereo Output)
- I2C Control Interface
- Sampling Rate can Support from 32kHz to 192kHz
- Separated Volume Control from 24dB to Mute
- Soft Mute (50% Duty Cycle)
- Programmable Dynamic Range Compression
- Speaker Protection
- Night-Mode Listening
- Programmable Biquads for Speaker EQ
- Shutdown and Mute Function
- Thermal and Over-Current Protections with Auto Recovery
- Space Saving Package TQFP7x7-48P
- Lead Free and Green Devices Available (RoHS Compliant)
General Description
The APA3175 is a digital input, stereo, high efficiency, Class-D audio amplifier available in a TQFP7x7-48P package. The APA3175 accepts the digital serial audio data and using the digital audio processor to convert the audio data becomes the stereo Class-D output speaker amplifier. This provides the seamless integration between the codec and the speaker amplifier. The APA3175 is a slave device receiving clocks from external source, and the Class-D’s PWM switching frequency is 352.8kHz for the sampling rate 44.1kHz or 384kHz for sampling 48kHz, depend on the input signal’s sampling rate.
