TI Unveils Ethernet PHYs That Streamline Design and Boost Network Performance

Texas Instruments has launched two new Ethernet physical layer (PHY) transceivers, offering designers more compact and versatile options for both space‑constrained and time‑sensitive network (TSN) applications.

The DP83825I is a low‑power 10/100‑Mbps PHY that packs into a 3 × 3 mm QFN package—44 % smaller than comparable devices—while delivering a 150‑meter cable reach. Its reduced footprint and power consumption (under 125 mW) enable tighter system designs, lower operating costs, and the elimination of Ethernet repeaters.

Key power‑saving features include Energy‑Efficient Ethernet, Wake‑on‑LAN, and MAC‑level isolation, helping to free up thermal budget for other critical components.

The DP83869HM is the industry’s only gigabit PHY that supports both copper and fiber media, operates reliably up to 125 °C, and boasts an extended temperature range of –40 °C to 125 °C for fiber modes. With ESD immunity exceeding 8 kV (IEC 61000‑4‑2), it delivers robust performance in high‑temperature, static‑prone industrial environments such as factory floors.

It supports 1000Base‑X and 100Base‑FX Ethernet, offers copper‑to‑fiber conversion, and delivers TSN‑ready latency below 390 ns for both 1000Base‑T and 100Base‑TX. These capabilities give engineers the flexibility to build long‑reach, high‑speed networks that remain reliable under harsh conditions.

By integrating these PHYs, designers can streamline layouts, reduce power budgets, and achieve higher network performance without sacrificing reliability.