Magnetic beads/filters/EMI optimization

The NUF4220 is a 4-way LC EMI filter array for audio applications. It achieves greater than -30 dB attenuation from 800 MHz to 5.0 GHz. This part is a single chip solution for audio interface applications, dual speaker lines with single microphone line. The device also provides ESD protection clamping transients against electrostatic discharge and all capacitors are ESD protected.