ROHM Semiconductor GmbH Analog Input Monaural Class-D Speaker Amplifier BD5469GUL

BD5469GUL is a monaural Class-D speaker amplifier that　has integrated ALC function suitable for mobile phones,　portable type electronic devices, etc. LC filter at the　speaker output is not needed. The IC forms a monaural　speaker amplifier using just 3 external components. ALC,　short for Automatic Level Control, is a function that　automatically adjusts the level of suppression to avoid　distortion (clipping) of the output waveform during　excessive input. The time until the suppression of the　output level is released is called the release time (or recovery time). This IC has a typical release time of　262ms/1dB which suits music play applications.　Thro ugh Class-D operation, the IC can achieve high　efficiency and low power consumption which makes it　suitable for battery driven applications. The current　consumptio n in shutdown mode is lowered to　0.01µA (Typ) . Startup time from shutdown mode to active mode is fast and pop noise is minimized which enables it to withstand repeated active and shutdown modes.