The LM4923 is a fully differential audio power amplifier primarily designed for demanding
applications in mobile phones and other portable communication device applications. It is capable
of delivering 1.1 watt of continuous average power to an 8Ω BTL load with less than 1% distortion
(THD+N) from a 5VDC power supply.
Boomer audio power amplifiers were designed specifically to provide high quality output
power with a minimal amount of external components. The LM4923 does not require output coupling
capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low
voltage applications where minimal power consumption is a primary requirement.
The LM4923 features a low-power consumption shutdown mode. To facilitate this, Shutdown
may be enabled by logic low. Additionally, the LM4923 features an internal thermal shutdown
The LM4923 contains advanced pop & click circuitry which eliminates noises which
would otherwise occur during turn-on and turn-off transitions.
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