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MAX4969：PCIe, Single Lane, 2:1/1:2 Multiplexer and Redriver with Equalization

Allows the System to Support PCIe 2.0 Data Rates (Up to 5.0Gbps) Over Long Cables and Boards

The MAX4969 active 2:1 and 1:2 multiplexer equalizes and redrives PCIe® signals up to 5.0GT/s (Gigatransfers per second) and operates from a single +3.3V supply. The MAX4969 features PCIe-required electrical idle and receiver detection on each channel and improves signal integrity at the receiver through independent programmable input equalization and output deemphasis. The MAX4969 is available in a small, 42-pin (3.5mm x 9.0mm) TQFN package optimal for simplified layout and space-saving requirements. The MAX4969 is specified over the 0°C to +70°C commercial operating temperature range.

Key Features Single +3.3V Supply Operation PCIe Gen 1 (2.5GT/s) and Gen 2 (5.0GT/s) Return Loss ≥ 8dB (1.25GHz ≤ f ≤ 2.5GHz) Independent Input Equalization Independent Output Deemphasis Independent Output Level Selection Reduced Power and EMI On-Chip 50Ω Input/Output Terminations Inline Signal Traces for Simplified Layout Space-Saving, 3.5mm x 9.0mm TQFN Package

MAX4969: Typical Application Circuit Applications/Uses Blade Servers Communications Switches Storage Area Network Test Equipment Workstations

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