company blog about Ethernet YT8531DH-CA / YT8531DC-CA / YT8531P-CA Single Port Gigabit Ethernet PHY Transceiver

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Introduction

The YT8531(D)(P) is a highly integrated Ethernet transceiver compliant with 10BASE-Te, 100BASE-TX and 1000BASE-T IEEE 802.3 standards. It provides all the physical layer functions required to transmit and receive Ethernet packets over CAT5E UTP cable.

The YT8531(D)(P) uses state-of-the-art DSP technology and analogue front-end (AFE) to enable high-speed data transmission and reception over UTP cable. The YT8531(D)(P) implements crossover detection and auto-correction, polarity correction, adaptive equalisation, crosstalk cancellation, echo cancellation, timing recovery, and error correction to provide powerful 10Mbps, 100Mbps, or 1000Mbps transmission and reception capabilities. Data transfer between the MAC and PHY is via the Reduced Gigabit Media Independent Interface (RGMII) for 1000BASE-T, 100BASE-TX, and 10BASE-Te.

The YT8531(D)(P) supports a variety of RGMII signal voltages, including 3.3V, 2.5V, and 1.8V. The YT8531(D)(P) has a proprietary Motorcomm feature called LRE100-4, which enables the device to transmit and receive data at 100Mbps with LRE100-4-compliant chains in extended cable range applications (up to 400m of CAT5E cable). LRE100-4-compliant link partners in extended cable range applications (up to 400 metres of CAT5E cable) at 100Mbps transceiver rate.

Key Features

1000BASE-T IEEE 802.3ab compliant

100BASE-TX IEEE 802.3u compliant

10BASE-Te IEEE 802.3 compliant

Only YT8531D/YT8531P supports LRE100-4.

Long distance Ethernet up to 400 m @100Mbps over 4 pairs of CAT.5E UTP cable

Supports RGMII

Supports IEEE 802.3az-2010 (Energy Efficient Ethernet)

Synchronous Ethernet (Sync-E) support

Built-in UTP Wake-on-LAN (WOL)

Supports UTP interrupt function

Supports parallel detection

Cross-detection and auto-correction

Automatic polarity correction

Baseline drift correction

Supports 120 metres of CAT.5E cable in 1000BASE-T

3.3V/2.5V/1.8V signal selectable for RGMII.

Supports 25MHz external crystal or OSC

Provides 25MHz/125MHz clock source for the MAC

Provides 3 network status LEDs

Supports link power-down power saving (sleep mode)

Built-in switching regulator or LDO

Supports 18k-byte jumbo frames for 1000BASE-T and 100BASE-TX and 10k-byte jumbo frames for 10BASE-Te

Industrial-grade manufacturing process (YT8531H/YT8531DH)

40-pin QFN green package

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