Datasheet LM4840MT - National Semiconductor AMP, AUDIO, STEREO 2 W, SMD, TSSOP28 — Ficha de datos

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Manufacturer: National Semiconductor

Description: AMP, AUDIO, STEREO 2 W, SMD, TSSOP28

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LM4840 Stereo 2W Audio Power Amplifiers with Digital Volume Control and Input Mux
December 2001
LM4840 Stereo 2W Audio Power Amplifiers with Digital Volume Control and Input Mux
General Description
The LM4840 is a monolithic integrated circuit that provides digital volume control and stereo bridged audio power amplifiers capable of producing 2W into 4 (Note 1) with less than 1.0% THD or 2.2W into 3 (Note 2) with less than 1.0% THD.

Boomer ® audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components. The LM4840 incorporates a digital volume control, stereo bridged audio power amplifiers, an input mux, and a last volume level memory function to save the volume setting during shutdown. These features make it optimally suited for multimedia monitors, portable radios, desktop, and portable computer applications. The LM4840 features an externally controlled, low-power consumption shutdown mode, and both a power

Specifications:

• Base Number: 4840
• Load Impedance Min: 8 Ohm
• Mounting Type: SMD
• Number of Channels: 2
• Number of Pins: 28
• Operating Temperature Range: -40°C to +85°C
• Package / Case: TSSOP
• Power Rating RMS: 1.1 W
• SVHC: No SVHC (15-Dec-2010)
• Supply Voltage Range: 2.7 V to 5.5 V

RoHS: Yes