Time-sensitive and space-constrained designs that require Ethernet communications are the targets of Texas Instruments' two new Ethernet physical-layer (PHY) transceivers, the DP83825I and the DP83869HM. The DP83825I is the smallest form factor in a 3- x 3-mm QFN package and supports 10 or 100 Mb/s over 150-m distances. Power consumption is less than 135 mW, and it features programmable energy saving modes such as Energy Efficient Ethernet (EEE), deep power down mode, wake-on-LAN, and active sleep modes.
On the other hand, the DP83869HM is a larger, more feature-rich device. It has selectable synchronized clock outputs, features media support mode and media conversion mode, and is optimized for ESD protection. In addition, the device can generate sync frame detect signals for the MAC, which will reduce jitter in time synchronization. Overall, the devices offer new options for designers looking for smaller, more power-efficient Ethernet connectivity solutions.