Nexperia claims its common mode filters have widest differential passband
Claimed to be the industry’s fastest common mode filter (choke)/ ESD protection combination, the PCMFxUSB3BA/C has the industry’s widest differential passband of up to 10GHz 3dB frequency and a very high surge robustness of up to 7.5A 8/20 micro seconds, says Nexperia. The PCMFxUSB3BA/C is designed to suppress common mode and single-ended noise while minimising the impact on the signal integrity of extremely fast data lines.
It was developed to meet the requirements of Super Speed USB applications. The filters provide effective one, two and three- line pair protection (Tx ±, Rx ±, D ±) and filtering. Proven for 10Gbits per second communications line protection, the filter’s system-level robustness exceeds the IEC 61000-4-2 level 4. This makes them suitable for use with sensitive SoCs, added Nexperia. The filters also minimise reflections when compared to a discrete design. The integration of Nexperia’s TrEOS technology results in low clamping and high robustness.
The PCMFxUSB3BA/C extends Nexperia’s family of common mode filters (PCMF devices), helping to optimise the choice between differential pass-band and common-mode rejection at signal fundamentals and higher harmonics.
“Apart from their capability to reduce EMI, common mode filters with ESD protection are also very popular for their efficiency in protecting sensitive transceivers,” observed Stefan Seider, product manager, Nexperia. “They add an impedance to the signal line pair, which is very small for differential signals but shows significant attenuation of common mode noise as well as single-ended transients such as ESD.”
The new PCMF filters are available in very low-inductance, space-saving WLCSP packages. Devices are footprint-compatible with available ESD-only solutions.
Nexperia specialises in high-volume production of discrete and MOSFET components and analogue and logic ICs that meet the stringent standards set by the automotive industry.
