PX1011A-EL1/G,551

Overview

The PX1011A-EL1/G,551 is a single-lane PCI Express electrical physical layer (PHY) compliant with Base Specification Rev. 1.0a and 1.1. It operates at 2.5 Gbit/s using an 8-bit parallel data interface running at 250 MHz with SSTL_2 signaling. The device includes clock and data recovery (CDR), serializer/deserializer (SerDes), 8b/10b encoding, and elastic buffering. It supports power management states L0, L0s, and L1, dissipating less than 300 mW in normal mode. The industrial variant operates from -40 °C to +85 °C. It utilizes a 9x9 mm LFBGA81 package.

Feature Summary

• Compliant with PCI Express Base Specification 1.1 for single lane operation
• Integrated clock and data recovery with low jitter performance
• Supports advanced power management including L0, L0s, and L1 states
• Includes JTAG boundary scan interface for built-in self-test

Applications

• PCI Express link interfaces requiring standalone PHY solutions
• Industrial systems requiring extended temperature range operation
• Hardware validation and loopback testing environments

Procurement Notes

Verify the ordering suffix matches the required solder process and temperature grade. The EL1 designation indicates the LFBGA81 package. Confirm whether the '/G' suffix is required for lead-free compliance or if the standard version suffices. Ensure the specific revision level aligns with design requirements before finalizing procurement orders.

Selection Notes

Select this component when a dedicated single-lane PCIe PHY is needed rather than an integrated MAC-PHY solution. Consider the PX1012A variant if different pinout or feature sets are preferred within the same family. Verify that the host system provides the necessary 100 MHz reference clock and appropriate voltage supplies for the SSTL_2 and core domains.

Part Context

This component belongs to the PX1011A/PX1012A family of standalone PCI Express PHYs originally developed by Philips Semiconductors. These devices bridge the gap between the Media Access Control (MAC) layer and the physical serial link. They are designed to offload high-speed serial signaling tasks from the processor, simplifying board layout and timing closure for FPGA-based designs.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.