2.1w Differential Input, Btl Output Stereo Audio Amplifier With Selectable Gain And Shutdown

The LM4874 features differential stereo inputs, BTL (bridge- tied load) outputs, and four externally selectable fixed gains. Operating on a single 5V supply, the LM4874 delivers 1.2W, 1.9W, or 2.1W (typ) of output power to an 8,4,or3 BTL load (Note 1), respectively, with less than 1% THD+N. The LM4874s gain is selected using two digital inputs. The nomi- nal gain values are 6dB, 10dB, 15.6dB, and 21.6dB. The LM4874 is designed for notebook and other handheld portable applications. It delivers high quality output power from a surface-mount package and requires few external components. Other features include an active-low micropower shutdown mode input and thermal shutdown protection. By National Semiconductor Corporation
LM4874 's PackagesLM4874 's pdf datasheet

LM4874 Pinout, Pinouts
LM4874 pinout,Pin out
This is one package pinout of LM4874,If you need more pinouts please download LM4874's pdf datasheet.

LM4874 Application circuits
LM4874 circuits
This is one application circuit of LM4874,If you need more circuits,please download LM4874's pdf datasheet.

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