Overview
The LA7471M is a stereo microphone amplifier for use in video camera products. It includes an automatic wind noise detection and removal circuit, an equalization circuit to compensate for microphone frequency characteristics and an L/R mixing circuit to provide a good stereo image. The LA7471M provides high quality audio for video camera applications.

FEATUREs
• Automatic wind noise detection and exclusion circuit (The high-pass filter provides a first-order to third-order linear conversion.)
• High-quality audio (low noise, microphone frequency characteristic compensation, and stereo enhancement)

Functions
• Microphone amplifier (two channels)
• Internal/external microphone switching
• Automatic wind noise detection/prevention circuit
• High-pass filter and disable switch
• Internal microphone power supply
• External microphone power supply (with current limiter)
• Ripple filter
• Stereo/mono detection for external microphones