LM4926

The LM4926 is a ground referenced, fixed-gain audio power amplifier capable of delivering 80mW of continuous average power into a 16 single-ended load with less than 1% THD+N from a 3V power supply.

The LM4926 features a new circuit technology that utilizes a charge pump to generate a negative reference voltage. This allows the outputs to be biased about ground, thereby eliminating output-coupling capacitors typically used with normal single-ended loads.

The LM4926 features an Automatic Standby Mode circuitry (patent pending). In the absence of an input signal, after approximately 12 seconds, the LM4926 goes into low current standby mode. The LM4926 recovers into full power perating mode immediately after a signal is applied to either he left or right input pins. This feature saves power supply urrent in battery operated applications.

Boomer audio power amplifiers were designed specifically to rovide high quality output power with a minimal amount of xternal components. The LM4926 does not require output oupling capacitors or bootstrap capacitors, and therefore is deally suited for mobile phone and other low voltage applications here minimal power consumption is a primary requirement.

The LM4926 features a low-power consumption shutdown ode selectable for either channel separately. This is accomplished y driving either the SD_RC (Shutdown Right hannel) or SD_LC (Shutdown Left Channel) (or both) pins ith logic low, depending on which channel is desired shutdown. dditionally, the LM4926 features an internal thermal hutdown protection mechanism.

The LM4926 contains advanced pop & click circuitry that liminates noises which would otherwise occur during urn-on and turn-off transitions.

The LM4926 has an internal fixed gain of 1.5V/V.