DP83865DVH/NOPB

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The DP83865DVH/NOPB is an integrated physical layer device used in many Ethernet-related applications. It is an advanced physical layer transceiver designed to meet the requirements of 10/100/1000 Ethernet networks. It offers a high performance physical layer solution with low power consumption and small size in applications such as network cards, switches, routers and set-top boxes.

The DP83865DVH/NOPB is a highly integrated Ethernet physical layer transceiver and comprises of several related components including a transmitter, a receiver and various interface logic. It is designed to be compliant with the 10Base-T, 100Base-TX and 1000Base-T standards, meaning it is capable of supporting 10 Mbps, 100 Mbps and 1000 Mbps data transmissions over Ethernet.

It uses a protocol called Media Access Control (MAC) to control the access of data packets from the MAC host controller. The controller passes data packets to the DP83865DVH/NOPB where the transmitter transmits them over the physical medium. The DP83865DVH/NOPB enables full duplex communication by allowing the receiver and transmitter to operate independently. The DP83865DVH/NOPB also supports auto-negotiation to detect and configure the data transmission speed.

The transmitter consists of a line driver, scrambler and Ethernet logic. The line driver converts the digital signal from the MAC controller into an analog signal which can be sent over the physical medium. The scrambler is responsible for scrambling the data to reduce the amount of DC energy and improve signal fidelity. The Ethernet logic helps ensure that the data is sent in accordance with the 10Base-T, 100Base-TX and 1000Base-T standards.

The receiver functions essentially in reverse. It consists of a descrambler, equalizer and Ethernet logic. The signal received from the physical medium is converted to a digital signal by the descrambler. The equalizer ensures signal integrity by canceling out any distortions in the signal caused by the physical medium. The Ethernet logic is responsible for receiving data in accordance with the 10Base-T, 100Base-TX and 1000Base-T standards.

The DP83865DVH/NOPB is a highly capable physical layer transceiver that enables high-speed data transmission, low power consumption and small size for many Ethernet applications. It is designed to be compliant with the 10Base-T, 100Base-TX and 1000Base-T standards and supports auto-negotiation to detect and configure the data transmission speed. Its transmitter and receiver components work together to ensure signal fidelity and reliability.

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