Datasheet LM4941SD - National Semiconductor AMP, AUDIO POWER, CLASS AB, BUMP-9

Detailed Description

Manufacturer: National Semiconductor

Description: AMP, AUDIO POWER, CLASS AB, BUMP-9

Download Data Sheet

Docket:
LM4941 1.25 Watt Fully Differential Audio Power Amplifier With RF Suppression and Shutdown
March 2007
LM4941 1.25 Watt Fully Differential Audio Power Amplifier With RF Suppression and Shutdown
General Description
The LM4941 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 1.25 watts of continuous average power to a 8 load with less than 1% distortion (THD+N) from a 5VDC power supply. The LM4941 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other small form factor applications where minimal PCB space is a primary requirement. The LM4941 also features proprietary internal circuitry that suppresses the coupling of RF signals into the chip. This is important because certain types of RF signals (such as GSM) can couple into audio amplifiers in such a way that part of the sig

Specifications:

• Amplifier Type: Audio
• Base Number: 4941
• Input Offset Voltage Max: 6 mV
• Load Impedance Min: 8 Ohm
• Mounting Type: SMD
• Number of Amplifiers: 1
• Number of Channels: 1
• Number of Pins: 9
• Operating Temperature Range: -40°C to +85°C
• Output Power: 1.25 W
• Package / Case: Bump
• Power Rating RMS: 1.25 W
• SVHC: No SVHC (15-Dec-2010)
• Supply Voltage + Nom: 6 V
• Supply Voltage Range: 2.4 V to 5.5 V

RoHS: Yes

Accessories:

• Electrolube - HTS35SL