Cirrus Logic, Inc. Boosted Hybrid Class D Amplifier With Integrated Dual LED Drivers CS35L32

The CS35L32 is a boosted 5 V nominal mono hybrid Class D speaker amplifier that combines the benefits of both linear and switching amplifier technologies. The IC’s offers best-in-class idle power consumption and low radiated emission while maintaining high output power efficiency and superior audio. Automatic Class G operation uses a boosted supply to the speaker to provide battery savings and higher crest factor audio capability. In addition, the battery voltage, speaker voltage and speaker current signals are monitored, digitized and serialized over an I²S bus. Features Two-level Class G operation, 5 V boosted or battery bypass√Integrated, programmable dual LED drivers I²S real-time speaker current and voltage monitoring One differential analog input Pop suppression, zero crossing detect transitions Speaker protection 30-ball WLCSP package