LM4832

If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
Supply Voltage .................................................6.0V
Storage Temperature ................−65°C to +150°C
Input Voltage ...........................−0.3V to V_DD +0.3V
Power Dissipation (Note 3) ...........Internally limited
ESD Susceptibility (Note 4) ............................2000V
ESD Susceptibility (Note 5) ..............................250V
Junction Temperatur ....................................150°C
Soldering Information
Small Outline Package
Vapor Phase (60 sec.) .................................215°C
Infrared (15 sec.) ........................................220°C
See AN-450 ²Surface Mounting and their Effects on Product Reliability² for other methods of soldering surface mount devices.
JC (typ)-N28B ........................................21°C/W
JA (typ)-N28B ........................................62°C/W
JC (typ)-M28B .......................................15°C/W
JA (typ)-M28B ........................................69°C/W

The LM4832 is a monolithic integrated circuit that provides volume and tone (bass and treble) controls as well as a stereo audio power amplifier capable of producing 250 mW (typ) into 8W or 90 mW (typ) into 32W with less than 1.0% THD. In addition, a two input microphone preamp stage, with volume control, capable of driving a 1 kW load is implemented on chip.

The LM4832 also features National's 3D Sound circuitry which can be externally adjusted via a simple RC network. For maximum system flexibility, the LM4832 has an externally controlled, low-power consumption shutdown mode, and an independent mute for power and microphone amplifiers.

Boomer® audio integrated circuits were designed specifically to provide high quality audio while requiring few external components. Since the LM4832 incorporates tone and volume controls, a stereo audio power amplifier and a microphone preamp stage, it is optimally suited to multimedia monitors and desktop computer applications.