KSZ9021GN-TR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Transceiver
Protocol:	Gigabit Ethernet
Number of Drivers/Receivers:	8/8
Duplex:	Full
Data Rate:	--
Voltage - Supply:	3.135 V ~ 3.465 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	64-VFQFN Exposed Pad
Supplier Device Package:	64-QFN (8x8)
Base Part Number:	KSZ9021

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<h2>KSZ9021GN-TR Application Field and Working Principle</h2><p>The KSZ9021GN-TR is a highly stable, cost-effective, and reliable Ethernet magnetics transceiver chip (magnetic transformer transceiver) designed to provide a phy-layer interface for the physical layer of 100BASE-TX and 10BASE-T Ethernet networks. In comparison to competing products, this transceiver chip possesses many advantages, such as outstanding data transmission performance, low power consumption, integrated LED support, and built-in diagnostic capabilities.<br></p><h3>Application Field</h3><p>KYZ9021GN-TR is broadly used in various applications involving Ethernet or local area networks, including home networks and enterprise networks. For example, it is used in networking equipment such as routers, modems, Ethernet switches, ADSL modems, and hubs, as well as in power over Ethernet (PoE) implementations.<br></p><h3>Working Principle</h3><p>The KSZ9021GN-TR contains four core components: a magnetically coupled transformer, two serially connected optics modules, a differential receiver for transmit data, and a differential driver for receive data. The magnetically coupled transformer provides galvanic isolation as well as excellent data integrity. The two serially connected optics modules convert the high frequency signal into a single ended signal, allowing improved high frequency transmission. The differential receiver and driver provide the differential signal necessary for reliable data transfer in Ethernet networks, while the LED support allows LED diagnostic capabilities. Furthermore, the power consumption of the chip is much lower than competing designs, allowing it to deliver great performance while meeting the stringent requirements of modern networking applications.<br></p><p>The KSZ9021GN-TR achieves its high performance by combining the differential outputs from the two optics modules with the differential receiver and driver to form a fully differential signal. This signal is then processed by the optoelectronic magnetically coupled transformer, which transforms it into a low impedance balanced output for transmission over the Ethernet network. The LED diagnostic feature of this chip helps to detect potential faults in the physical layer of the network.<br></p><p>In summary, the KSZ9021GN-TR is a highly stable and cost-effective Ethernet magnetics transceiver chip which provides excellent performance, low power consumption, built-in diagnostics, and LED support. Its broad use in networking infrastructure makes it an excellent choice for many applications.</p>

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