DS90UB947TRGCRQ1 Integrated Circuits (ICs)

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Introduction: The DS90UB947TRGCRQ1 is a member of the National Semiconductor family of serializer/deserializer (SERDES) transceivers. It is designed to enable high-speed differential signaling over standard 25-pair unshielded twisted-pair (UTP) cable used in point-to-point and/or point-to-multipoint applications. This article will discuss the application field and working principle of the DS90UB947TRGCRQ1.

Application Field: The DS90UB947TRGCRQ1 is commonly used in high-speed differential interface applications such as Gigabit Ethernet, Fibre Channel, and InfiniBand. It can also be used in other applications that require the transmission of high-speed, low-noise digital data over copper cables. The SERDES consists of two 8-bit differential line transceivers, providing transmit and receive functions, as well as cable pair skew compensation. It is optimized for transmission over Category 5/5e/6/7 UTP cables, and is also backward compatible with legacy cables. Additionally, the SERDES features power-down mode and hot-plugging support.

Working Principle: The DS90UB947TRGCRQ1 operates in a serializer/deserializer (SERDES) mode, where 8-bit wide differential-signal data is transmitted in a serial format over copper cables. The serial data is received by an integrated transceiver and then converted into 8-bit wide parallel data, while any line noise or crosstalk is suppressed by an integrated equalizer. An embedded flexible equalizer buffers and equalizes the signal over several cable pairs, including legacy Category 3/4 twisted-pair cables. The serial receiver also provides compensation for any skew between the cable pairs. The SERDES is also capable of low power, lossless operation. The SERDES employs both additive and subtractive simulations to ensure that data is accurately transmitted and received in both directions.

Conclusion: The DS90UB947TRGCRQ1 is a high-speed SERDES transceiver designed for applications that require the transmission of high-speed, low-noise digital data over copper cables. It is optimized for Category 5/5e/6/7 UTP cables, and is also backward compatible with legacy cables. The SERDES consists of two 8-bit differential line transceivers, providing transmit and receive functions, as well as cable pair skew compensation. Additionally, the SERDES features power-down mode and hot-plugging support. The SERDES operates in a serializer/deserializer (SERDES) mode, where 8-bit wide differential-signal data is transmitted in a serial format over copper cables and received by an integrated transceiver, then converted into 8-bit wide parallel data, while any line noise or crosstalk is suppressed by an integrated equalizer.

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