Overview

The LV49821VH incorporates a 2-channel power circuit amplifier capable of low-voltage operation (2.7V and up). It has a function for switching the headphone driver and also has a standby function to reduce the current drain. It is a power amplifier IC optimal for driving the speakers used in portable equipment and low power output equipment.

Features

• 2-cannels BTL power amplifier built-in:

Standard output power = 1.4W (VCC = 5V, RL = 8Ω, THD = 10)

Output coupling capacitor is unnecessary because of differential output type.

• Standby function built-in: Standard standby current = 0.01μA (VCC = 5V)

• Second amplifier stop control function built-in: Headphone driver switch (for BTL/SE switch)

Audio mute (Only BTL power amplifier path)

• Supports beep signal input

• Thermal protection circuit built-in

• Operation at low voltage possible: VCC = 2.7V to 5.5V

• Gain setting possible: BTL voltage gain = 0 to 26dB

Use

• Portable DVD-player, Note PC, Portable TV, LCD monitor, Active speaker, and more.