I2S digital power amplifier
ACM8624
ACM8624 is a fully integrated, high efficiency, stereo Class-D audio amplifier with digital inputs. The application circuit requires few passives components to operate with 4.5V to 26.4V PVDD supply, 3.3V or 1.8V DVDD supply. It can drive 2×33W output power into BTL 6Ω and 1×66W into PBTL 3Ω@1% THD+N.
ACM8624 features one novel PWM modulation architecture, which adjusts PWM common duty cycle during start-up phase to avoid startup pop click. Spread spectrum technology provides lower EMI noise. It allows inductor free application with specified output power situation with ACM8624. The advanced audio effect tuning capability inside ACM8624 provides one highly integrated solution. It allows turning on / off each block with highly free operations. Both BQs and volume helps a lot to maintain audio headroom.
