ISL99203

ISL99203 High Efficiency Audio Subsystem The ISL99203 is a fully integrated high efficiency classD mono amplifier combined with a capfree headphone amplifier. It is designed to maximize performance for mobile phone applications while saving valuable board space. The application circuit requires a minimum requirement of external components and operates from a 2.4V to 5.5V input supply. It is capable of delivering 1.5W of continuous output power with less than 10% THD+N driving a 8 load from a 5V supply. The speaker amplifier of the ISL99203 features a high-efficiency, low-noise modulation scheme. It operates with 85% efficiency at 400mW into 8 from 5V supply and has a signal-to-noise ratio (SNR) that is greater than 95dB. The architecture of the device allows it to achieve very low level pop and click. This minimizes voltage glitches at the output during turn-on and turn-off, thus reducing audible noise on activation and deactivation. EMI suppression is achieved by SRC (Slew Rate ...