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AN3455

Title	Title AN3455- 1000BASE-T Transmitter Distortion
Name	Name AN3455
Date	Date 09/24/2020
Description	Description This application note provides detailed information about the 1000BASE-T distortion behavior of Microchip PHYs.

Development Tools

Title		Part Number	Title
EV16T60A EVB-KSZ9131RNX PLUG-IN EVALUATION BOARD		EV16T60A	EVB-KSZ9131RNX PLUG-IN EVALUATION BOARD

Silicon Products

Title	Product	Title
KSZ9567 7-Port Gigabit Ethernet Switch with IEEE 1588, SGMII/RGMII/MII/RMII	KSZ9567	7-Port Gigabit Ethernet Switch with IEEE 1588, SGMII/RGMII/MII/RMII
LAN8830 Gigabit Ethernet Transceiver with RGMII Support	LAN8830	Gigabit Ethernet Transceiver with RGMII Support
LAN8841 Gigabit Ethernet Transceiver (PHY) w/ IEEE1588 & RGMII	LAN8841	Gigabit Ethernet Transceiver (PHY) w/ IEEE1588 & RGMII
VSC8575 4 Port GbE Cu/Fiber PHY with (Q)SGMII and Pre	VSC8575	4 Port GbE Cu/Fiber PHY with (Q)SGMII and Pre
VSC8572 2 Port GbE Cu/Fiber PHY with SGMII/RGMII & IEEE	VSC8572	2 Port GbE Cu/Fiber PHY with SGMII/RGMII & IEEE
VSC8224 4 Port GbE Cu PHY with RGMII	VSC8224	4 Port GbE Cu PHY with RGMII
VSC8538 8 Port GbE Cu PHY with SGMII	VSC8538	8 Port GbE Cu PHY with SGMII
VSC8658 8 Port GbE Cu/Fiber PHY with SGMII	VSC8658	8 Port GbE Cu/Fiber PHY with SGMII
VSC7514 10 Port Industrial Switch with 4 Cu PHYs	VSC7514	10 Port Industrial Switch with 4 Cu PHYs
VSC7430 6 Port Carrier Ethernet Switch with 2 Cu PHYs	VSC7430	6 Port Carrier Ethernet Switch with 2 Cu PHYs
VSC8540 1 Port FE Cu PHY with SyncE, RGMII (Ind. Temp)	VSC8540	1 Port FE Cu PHY with SyncE, RGMII (Ind. Temp)
VSC8541 1 Port GbE Cu PHY with SyncE, (R/G/RG)MII	VSC8541	1 Port GbE Cu PHY with SyncE, (R/G/RG)MII
VSC8582 2 Port GbE Cu/Fiber PHY with IEEE 1588 & MACs	VSC8582	2 Port GbE Cu/Fiber PHY with IEEE 1588 & MACs
VSC8564 4 Port GbE Cu/Fiber PHY with (Q)SGMII & MACse	VSC8564	4 Port GbE Cu/Fiber PHY with (Q)SGMII & MACse
VSC7440 8x1G + 2x10G Ethernet Switch with 2 Cu PHYs	VSC7440	8x1G + 2x10G Ethernet Switch with 2 Cu PHYs
KSZ9031 Gigabit Ethernet Transceiver with Power Saving Features	KSZ9031	Gigabit Ethernet Transceiver with Power Saving Features
VSC7435 6 Port Carrier Ethernet Switch with 2 Cu PHYs	VSC7435	6 Port Carrier Ethernet Switch with 2 Cu PHYs
KSZ9477 Fully Integrated Layer 2, Managed, Seven-port Gigabit Ethernet Switch	KSZ9477	Fully Integrated Layer 2, Managed, Seven-port Gigabit Ethernet Switch
KSZ9021 Gigabit Ethernet Transceiver	KSZ9021	Gigabit Ethernet Transceiver
VSC8504 4 Port GbE Cu/Fiber PHY with (Q)SGMII	VSC8504	4 Port GbE Cu/Fiber PHY with (Q)SGMII
VSC8552 2 Port GbE Cu/Fiber PHY with (R/S)GMII	VSC8552	2 Port GbE Cu/Fiber PHY with (R/S)GMII
LAN8831 Gigabit Ethernet Transceiver with RGMII/GMII Support	LAN8831	Gigabit Ethernet Transceiver with RGMII/GMII Support
LAN8810 GMII 10/100/1000 Ethernet Transceiver with HP Auto-MDIX	LAN8810	GMII 10/100/1000 Ethernet Transceiver with HP Auto-MDIX
VSC8562 2 Port GbE Cu/Fiber PHY with (Q)SGMII & MACse	VSC8562	2 Port GbE Cu/Fiber PHY with (Q)SGMII & MACse
KSZ9692 10/100/1000 Ethernet SoC Controller w/ ARM9 Core	KSZ9692	10/100/1000 Ethernet SoC Controller w/ ARM9 Core
VSC8514 4 Port GbE Cu PHY with QSGMII	VSC8514	4 Port GbE Cu PHY with QSGMII
VSC8522 12 Port GbE Cu PHY with QSGMII (Ind. Temp)	VSC8522	12 Port GbE Cu PHY with QSGMII (Ind. Temp)
LAN8840 Gigabit Ethernet Transceiver (PHY) supporting IEEE1588 w/ RGMII	LAN8840	Gigabit Ethernet Transceiver (PHY) supporting IEEE1588 w/ RGMII
VSC7415 6 Port Enterprise Switch with 2 Cu PHYs	VSC7415	6 Port Enterprise Switch with 2 Cu PHYs
VSC7410 6 Port Enterprise Switch with 2 Cu PHYs	VSC7410	6 Port Enterprise Switch with 2 Cu PHYs
VSC7423 7 Port GbE Carrier Switch with 5 Cu PHYs	VSC7423	7 Port GbE Carrier Switch with 5 Cu PHYs
VSC7436 8x1G + 2x10G Carrier Switch with 2 Cu PHYs	VSC7436	8x1G + 2x10G Carrier Switch with 2 Cu PHYs
KSZ9897 7-Port Gigabit Ethernet Switch with SGMII/RGMII/MII/RMII	KSZ9897	7-Port Gigabit Ethernet Switch with SGMII/RGMII/MII/RMII
KSZ9893 3-Port Gigabit Ethernet Switch with RGMII/MII/RMII	KSZ9893	3-Port Gigabit Ethernet Switch with RGMII/MII/RMII
KSZ9896 6-Port Gigabit Ethernet Switch with GMII/RGMII/MII/RMII	KSZ9896	6-Port Gigabit Ethernet Switch with GMII/RGMII/MII/RMII
KSZ9131 Gigabit Ethernet Transceiver with Power Saving Features	KSZ9131	Gigabit Ethernet Transceiver with Power Saving Features
LAN8820 RGMII 10/100/1000 Ethernet Transceiver with HP Auto-MDIX Support	LAN8820	RGMII 10/100/1000 Ethernet Transceiver with HP Auto-MDIX Support
VSC8558 8 Port GbE Cu/Fiber PHY with SGMII	VSC8558	8 Port GbE Cu/Fiber PHY with SGMII
VSC8662 2 Port GbE Cu/Fiber PHY (Ind. Temp)	VSC8662	2 Port GbE Cu/Fiber PHY (Ind. Temp)
VSC8501 1 Port GbE Cu PHY with (G/RG)MII	VSC8501	1 Port GbE Cu PHY with (G/RG)MII
VSC8502 2 Port GbE Cu PHY with (G/RG)MII	VSC8502	2 Port GbE Cu PHY with (G/RG)MII
VSC8531 1 Port GbE Cu PHY with RGMII/RMII (Ind. Temp)	VSC8531	1 Port GbE Cu PHY with RGMII/RMII (Ind. Temp)
VSC8584 4 Port GbE Cu/Fiber PHY with (Q)SGMII, Premium	VSC8584	4 Port GbE Cu/Fiber PHY with (Q)SGMII, Premium
VSC8664 4 Port GbE Cu/Fiber PHY (Ind. Temp)	VSC8664	4 Port GbE Cu/Fiber PHY (Ind. Temp)
VSC8244 4 Port GbE Cu PHY	VSC8244	4 Port GbE Cu PHY
VSC8530 1 Port FE Cu PHY with RGMII/RMII (Ind. Temp)	VSC8530	1 Port FE Cu PHY with RGMII/RMII (Ind. Temp)
VSC8211 10/100/1000 Base-T, SGMII Ethernet PHY	VSC8211	10/100/1000 Base-T, SGMII Ethernet PHY
VSC7513 8 Port Industrial Switch with 4 Cu PHYs	VSC7513	8 Port Industrial Switch with 4 Cu PHYs
VSC7437 8-Port Carrier Ethernet Switch	VSC7437	8-Port Carrier Ethernet Switch
VSC7426 24 Port Managed L2 Switch with 12 Cu PHYs	VSC7426	24 Port Managed L2 Switch with 12 Cu PHYs
VSC8221 1 Port GbE Cu PHY with SGMII for CuSFP Apps	VSC8221	1 Port GbE Cu PHY with SGMII for CuSFP Apps
VSC7420 10 Port Unmanaged L2 Switch with 8 Cu PHYs	VSC7420	10 Port Unmanaged L2 Switch with 8 Cu PHYs
VSC8540RT 1 Port FE Cu PHY with SyncE, (R/RG)MII	VSC8540RT	1 Port FE Cu PHY with SyncE, (R/RG)MII
VSC8541ET 1 Port GbE Cu PHY with SyncE, (R/G/RG)MII	VSC8541ET	1 Port GbE Cu PHY with SyncE, (R/G/RG)MII
VSC8540ET 1 Port FE Cu PHY with SyncE, (R/RG)MII	VSC8540ET	1 Port FE Cu PHY with SyncE, (R/RG)MII
KSZ9563 3-Port Gigabit Ethernet Switch with 1588v2	KSZ9563	3-Port Gigabit Ethernet Switch with 1588v2
VSC7429 26 Port Carrier Switch with 12 Cu PHYs	VSC7429	26 Port Carrier Switch with 12 Cu PHYs
VSC7422 25 Port Unmanaged L2 Switch with 12 Cu Phys	VSC7422	25 Port Unmanaged L2 Switch with 12 Cu Phys
VSC7427 26 Port Managed L2 Switch with 12 Cu PHYs	VSC7427	26 Port Managed L2 Switch with 12 Cu PHYs
VSC7511 4 Port Unmanaged Industrial Ethernet Switch	VSC7511	4 Port Unmanaged Industrial Ethernet Switch
VSC7512 10 Port Unmanaged Industrial Ethernet Switch	VSC7512	10 Port Unmanaged Industrial Ethernet Switch
VSC7421 17 Port Unmanaged L2 Switch with 12 Cu PHYs	VSC7421	17 Port Unmanaged L2 Switch with 12 Cu PHYs
VSC8541RT 1 Port GbE Cu PHY with SyncE, (R/G/RG)MII	VSC8541RT	1 Port GbE Cu PHY with SyncE, (R/G/RG)MII
VSC8512 12 Port GbE Cu PHY with 4 Dual Media ports	VSC8512	12 Port GbE Cu PHY with 4 Dual Media ports
VSC7428 11 Port Carrier Ethernet Switch with 8 Cu PHY	VSC7428	11 Port Carrier Ethernet Switch with 8 Cu PHY
VSC7425 18 Port Managed L2 Switch with 12 Cu PHYs	VSC7425	18 Port Managed L2 Switch with 12 Cu PHYs
VSC7424 10 Port Managed L2 Switch with 8 Cu PHYs	VSC7424	10 Port Managed L2 Switch with 8 Cu PHYs
VSC8574 4 Port GbE Cu/Fiber PHY with (Q)SGMII and IEEE	VSC8574	4 Port GbE Cu/Fiber PHY with (Q)SGMII and IEEE
LAN9646 6-Port Gigabit Ethernet Switch with SGMII/RGMII/MII/RMII	LAN9646	6-Port Gigabit Ethernet Switch with SGMII/RGMII/MII/RMII
VSC8574RT Radiation Tolerant 4 Port GbE Cu/Fiber PHY with (Q)SGMII and IEE	VSC8574RT	Radiation Tolerant 4 Port GbE Cu/Fiber PHY with (Q)SGMII and IEE