7w amplifier lm4756 | Electronic Schematic Diagram https://electronicscheme.net Schematic Diagram & PCB Design Sat, 04 Oct 2014 07:35:45 +0000 en-US hourly 1 https://i0.wp.com/electronicscheme.net/wp-content/uploads/2017/05/cropped-transparent_text_effect.png?fit=32%2C32&ssl=1 7w amplifier lm4756 | Electronic Schematic Diagram https://electronicscheme.net 32 32 129969089 2x7W Audio Amplifier with LM4756 https://electronicscheme.net/2x7w-audio-amplifier-with-lm4756/?utm_source=rss&utm_medium=rss&utm_campaign=2x7w-audio-amplifier-with-lm4756 https://electronicscheme.net/2x7w-audio-amplifier-with-lm4756/#respond Wed, 03 Mar 2010 22:15:02 +0000 http://electronicscheme.net/?p=413 This is the circuit diagram of stereo power audio amplifier using power IC LM4756. The IC have the capability to deliver dual output channel at […]

The post 2x7W Audio Amplifier with LM4756 first appeared on Electronic Schematic Diagram.]]> This is the circuit diagram of stereo power audio amplifier using power IC LM4756. The IC have the capability to deliver dual output channel at 7W for each channel. Like the other audio amplifier circuits, this circuit just need a few external components to work.

Circuit Application:

2x7W Audio Amplifier with LM4756 circuit diagram

PCB Design:

This is the PCB design for 2 x 7W audio amplifier with LM4756:

2x7W Audio Amplifier PCB design

About LM 4756:

The LM4756 is a stereo audio amplifier capable of delivering 7W/channel at 10% distortion into a 4? or 8? load. The power amp has an internally set gain of 30dB. A 0V?5V DC controlled volume block provides 80dB of attenuation from input to line-out. Line outputs are available after the volume control for signal routing.

The amplifier has a smooth transition fade-in/out mute and a power conserving standby function which are controlled through TTL or CMOS logic. Both functions provide over 75dB of attenuation.

The LM4756 maintains an excellent Signal-to-Noise ratio of greater than 70dB with a low noise floor less than 2mV. The IC also maintains above 50dB of channel separation.

LM4756 Features:

  • Quiet fade-in/out mute function
  • Stereo variable line-out pins
  • AC output short circuit protectio
  • Thermal shutdown protection

Download LM4756 Datasheet for detailed explanation about LM4756 include the circuit application: [wpdm_file id=60]

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