DLP11SA350HL2L Filters

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Common Mode Choke, abbreviated as CMC, is a multi-port inductor employed for coupling or signal transmission with electrical insulation characteristics between transmission lines. CMC is a kind of passive components with excellent filtering and damping characteristics. It is mainly used for signal transmission and coupling in low frequency circuits. DLP11SA350HL2L is a common mode choke of perfect performance, its application field and working principle are as follows.

Application Field

DLP11SA350HLL2 is normally used for coupling, filtering, signal coupling, signal transmission and noise damping in low-frequency electrical circuits, such as mobile phones, computer peripherals, data transmission system interface, telephone systems, etc. It plays an important role in these circuit by providing excellent filtering, damping and signal transmission functions. It helps to maintain reliable signal transmission, and also contribute to circuits miniaturization.

Working Principle

DLP11SA350HL2L CMC works by establishing a magnetic flux along the winding of the coils (core) for high impedance. It also converts differential mode presence of the signal (signal currents flowing in opposite direction in two lines) into a common mode presence. The differential mode signals are forced to be blocked while the common mode signals are allowed to pass. This results in a differential mode impedance gain compared to common mode impedance. By reducing common mode noise, the overall interference in the circuit is reduced and the signal transmission is improved.

CMC differs from the common inductor in its more efficient filtering and damping characteristics. The common inductor behaves mainly as a filter in certain frequency bands, which results in a decrease in the overall signal-to-noise ratio (SNR). But CMC provides more efficient damping performance in low frequency band than inductors, and can effectively suppress differential mode noise while still allowing the transmission of common mode signals.

Apart from reducing the effect of common mode noise, CMC also improves the electromagnetic compatibility within the system. Since the CMC has superior filter and damping performances, it is able to provide a better isolation between different circuits, thus reducing the chances of cross-talk and ground loop. This further helps to maintain the flow stability of signal transmission within the system, thus enhancing the overall performance of the system.

Conclusion

DLP11SA350HL2L CMC is an excellent device with excellent filtering and damping characteristics. It is mainly used for signal transmission and coupling in low-frequency electrical circuits, such as mobile phones, computer peripherals, data transmission system interface, telephone systems, etc. Its working principle involves establishing a magnetic flux along the winding of the coils (core) for high impedance. This ensures efficient filtering and damping performance while providing better isolation between different circuits, thus reducing the chances of cross-talk and ground loop. All in all, CMCs are important components for maintaining reliable signal transmission and improving overall system performance.

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