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MICRELAN120CAPACITIVECOUPLINGE

Title
Title
Capacitive Coupling Ethernet Transceivers without Using Transformers
Name
Name
MICRELAN120CAPACITIVECOUPLINGE
Date
Date
08/16/2018
Application Categories
Application Categories
Ethernet Devices / Ethernet Controllers
Description
Description
It is a common practice to capacitively couple Ethernet transceivers (PHYs) together without the use of a transformer to reduce both the BOM cost and PCB area. This application note describes methods for capacitive coupling of Micrel?s 10/100 Ethernet devices.

Development Tools

Title Part Number Title
KSZ8999-EVAL
KSZ8999 EVAL BOARD
KSZ8999-EVAL KSZ8999 EVAL BOARD

Silicon Products

Title Product Title
KSZ8999
9-Port 10/100 Unmanaged Ethernet Switch with Fiber Support
KSZ8999 9-Port 10/100 Unmanaged Ethernet Switch with Fiber Support
KSZ8721
10/100Base-T/TX/FX Ethernet Transceiver
KSZ8721 10/100Base-T/TX/FX Ethernet Transceiver
KSZ8695
10/100 Base-T/TX 5-Port Ethernet SoC Controller with ARM9 Core
KSZ8695 10/100 Base-T/TX 5-Port Ethernet SoC Controller with ARM9 Core
KSZ8081
10/100 Base-T/TX Physical Layer Transceiver
KSZ8081 10/100 Base-T/TX Physical Layer Transceiver
KSZ8041
10BASE-T/100BASE-TX Physical Layer Transceiver
KSZ8041 10BASE-T/100BASE-TX Physical Layer Transceiver
KSZ8851
10/100 Base-T/TX Ethernet Controller w/ Generic 8/16/32-bit or SPI Interface
KSZ8851 10/100 Base-T/TX Ethernet Controller w/ Generic 8/16/32-bit or SPI Interface
KSZ8993
3-Port 10/100 Managed Ethernet Switch with Fiber Support
KSZ8993 3-Port 10/100 Managed Ethernet Switch with Fiber Support
KSZ8873
3-Port 10/100 Managed Ethernet Switch with Fiber Support
KSZ8873 3-Port 10/100 Managed Ethernet Switch with Fiber Support
KSZ8842
2-Port 10/100 Managed Ethernet Switch
KSZ8842 2-Port 10/100 Managed Ethernet Switch
KSZ8001
10/100BASE-T/TX/FX Physical Layer Transceiver
KSZ8001 10/100BASE-T/TX/FX Physical Layer Transceiver
KSZ8997
8-Port 10/100 Integrated Switch with PHY and Frame Buffer
KSZ8997 8-Port 10/100 Integrated Switch with PHY and Frame Buffer
KSZ9897
7-Port Gigabit Ethernet Switch with SGMII/RGMII/MII/RMII
KSZ9897 7-Port Gigabit Ethernet Switch with SGMII/RGMII/MII/RMII
KSZ8893
3-Port 10/100 Managed Ethernet Switch with Fiber Support
KSZ8893 3-Port 10/100 Managed Ethernet Switch with Fiber Support
KSZ9893
3-Port Gigabit Ethernet Switch with RGMII/MII/RMII
KSZ9893 3-Port Gigabit Ethernet Switch with RGMII/MII/RMII
KSZ8841
10/100 Base-T/TX Ethernet Controller with PCI and Host Bus Interface
KSZ8841 10/100 Base-T/TX Ethernet Controller with PCI and Host Bus Interface
KSZ8091
10/100 Base-T/TX Ethernet Transceiver with Power Saving Features
KSZ8091 10/100 Base-T/TX Ethernet Transceiver with Power Saving Features
KSZ8995
5-Port 10/100 Ethernet Switch with Fiber Support
KSZ8995 5-Port 10/100 Ethernet Switch with Fiber Support