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CM1693: EMI Filter with ESD Protection

The CM1693 is a family of pi-style EMI filter arrays with ESD protection, which integrates four, six or eight filters (C-L-C) into a small-form factor, uDFN 0.40 mm pitch package. Each EMI filter channel is implemented as a 3-pole L-C filter, where the component values are 10pF-26nH-12pF. The CM1693's roll-off frequency at -6 dB attenuation is 300 MHz and can be used in applications where the data rates are as high as 140 Mbps. The CM1693 also provides greater than -30 dB attenuation over the 800 MHz to 6 GHz frequency range. The device includes ESD diodes on every pin that provide a very high level of protection for sensitive electronic components against possible electrostatic discharge (ESD). The ESD protection diodes connected to the filter ports are designed and characterized to safely dissipate ESD strikes of ±18kV, which is beyond the maximum requirement of the IEC61000-4-2 international standard.

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