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APA3176
Active
Stereo Digital Class-D Amplifier
Features
- Speaker Protection
General Description
The APA3176 is a digital input, stereo, high efficiency, Class-D audio amplifier and is available in QFN4x4-28A and TSSOP-28P pins packages. The APA3176 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 APA3176 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 : 8V-20V for PVDD and AVDD
- High EfficiencyClass-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
- Shutdown andMute Function
- Soft Start and Soft Mute
- Slew Rate limiter
- Thermal and Over-Current Protections with Auto Recovery
- Space Saving Package QFN4x4-28A and TSSOP-28P
- Lead Free and Green Devices Available (RoHS Compliant)
General Description
The APA3176 is a digital input, stereo, high efficiency, Class-D audio amplifier and is available in QFN4x4-28A and TSSOP-28P pins packages. The APA3176 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 APA3176 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.
