KSZ9021RLI

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The KSZ9021RLI is an integrated Ethernet Physical Layer Transceiver designed and developed by Swiss company Micrel. It is a low-density, low-power integrated transceiver. As the name suggests, KSZ9021RLI belongs to the transceiver family, and supports a variety of interface types such as Gigabit Ethernet (1000Base-T), 10/100Base-T, and 100Base-FX. Its features make it a suitable option for both low-power, low-density applications, such as home office and small businesses, as well as high-density, high-power applications, such as data centers and telecommunications networks.

The KSZ9021RLI excels in applications that require high-speed data transmission over long distances. This is due to its excellent signal-to-noise-ratio and Ethernet signal quality. It is also designed to reduce power consumption, making it an ideal choice for applications that require low-power, low-density solutions.

In terms of its working principle, the KSZ9021RLI employs a sophisticated multiple input multiple output (MIMO) architecture that utilizes four transceivers – three transmitters and one receiver – to provide bidirectional data transfer. It works by encoding data via a combination of SD, HD, and FD symbols, as well as providing precise timing control for transmission of symbols. This is done via a scalable phase-locked loop (PLL) synthesizer which ensures precise timing control of the transmitted symbols.

The KSZ9021RLI also supports the Energy-Efficient Ethernet (EEE) protocol, which is designed to reduce power consumption by reducing the amount of active transmission time. The transceiver supports the EEE protocol through its proprietary Energy Detection and Frame Packing (EDFP) technology. EDFP dynamically detects and encapsulates energy-efficient frames into a single packet, thus significantly reducing the amount of power consumed by the transceiver.

The KSZ9021RLI is a versatile and powerful transceiver that provides high-speed data transmission over long distances. Its low-power and low-density design make it ideal for applications such as home office and small business, as well as data centers and telecommunications networks. Its features, such as its MIMO architecture, precise timing control for transmission of data, and support for the Energy-Efficient Ethernet protocol, make it an excellent choice for high-bandwidth applications.

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