DS21S07AS+

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Introduction

DS21S07AS+ is a signal terminator designed for applications in communication networks and interface circuits. The DS21S07AS+ can provide improved signal integrity and reduced EMI (electromagnetic interference) emission, thus ensuring reliable communication in multi-channel applications. In addition, the DS21S07AS+ is also suitable for protecting sensitive electronic systems from external EMI. It is an ideal choice for industrial and automotive applications with stringent requirements on signal integrity, EMI emission and interference immunity.

Application Field

DS21S07AS+ offers many advantages for applications in communication networks and interface circuits. It can be used in various applications such as automotive, industrial automation, process control, monitoring, building automation and home automation. In the automotive sector, DS21S07AS+ can be used to reduce EMI interference in multi-channel systems such as ADAS (Advanced Driver Assistance System), body electronics and infotainment systems. In the industrial field, it can be used in control systems, protective devices, UPS systems and data acquisition systems. In the home automation and building automation fields, it can be used in modern intelligent home systems to reduce interference and improve system reliability.

Working Principle

The working principle of the DS21S07AS+ is based on the concept of impedance matching and the use of a low-pass filter which reduces the high-frequency noise of the signal. The device is composed of an input driver, an integrated low-pass filter, an intermediate driver and an output driver. The low-pass filter limits the frequency of the signal to a predetermined frequency. The intermediate driver further reduces the signal strength to eliminate higher-frequency noise which could cause the signal to be corrupted. The output driver then amplifies the signal to a specific voltage level which is suitable for the receiving device.

In addition, the DS21S07AS+ features integrated ESD protection circuits to protect against transmission line error-induced ESD phenomena. The device is also equipped with active EMI suppression, which can significantly reduce electromagnetic interference and cross-talk in the communication network. Finally, the device is integrated with a thermal shut-down feature for overtemperature protection.

Conclusion

DS21S07AS+ is a signal terminator specifically designed for application in communication networks and interface circuits. It is offered in a small SOP package and offers many advantages, such as improved signal integrity, reduced EMI emission and protection from external EMI. It is suitable for a wide range of applications including automotive, industrial and home automation applications. The working principle of the device consists of an input driver, an integrated low-pass filter, an intermediate driver and an output driver. In addition, the device also offers integrated ESD protection circuits, active EMI suppression and a thermal shut-down feature.

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