Description
The unity gain stable LM4925 is both a mono differentialoutput (for BTL operation) audio amplifier and a SingleEnded (SE) stereo headphone amplifier. Operating on asingle 3V supply, the mono-BTL mode delivers 410mW intoan 8? load at 1% THD+N. In Single Ended stereo headphonemode, the amplifier delivers 40mW per channel into a16? load at 1% THD+N.With the LM4925 packaged in the MM and LLP packages,the customer benefits include low profile and small size. Thispackage minimizes PCB area and maximizes output power.The LM4925 features circuitry that reduces output transients(“clicks” and “pops”) during device turn-on and turn-off, anexternally controlled, low-power consumption, active-lowshutdown mode, and thermal shutdown. Boomer audiopower amplifiers are designed specifically to use few externalcomponents and provide high quality output power in asurface mount package
- BTL mode for mono speaker
- 2-cell 1.5V to 3.6V battery operation
- Single ended headphone operation with output coupling capacitors
- Unity-gain stable
- “Click and pop” suppression circuitry for both Shutdown and Mute
- Active low micro-power shutdown
- Active-low mute mode
- Thermal shutdown protection circuitry
