SATA I/II Bidirectional Redriver with High ESD and Cable Detect

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The MAX4951AE dual-channel buffer is designed to redrive serial-ATA (SATA) I and SATA II signals and can survive ESD events up to ±8kV Human Body Model (HBM). The MAX4951AE can be placed near an eSATA connector to overcome board losses and produce an eSATA-compliant signal level. This device is Serial ATA Revision 2.6 (gold standard)-compliant, while overcoming losses in the PCB and eSATA connector.

The MAX4951AE features low standby current for power-sensitive applications. This device features hardware SATA-drive cable detection, keeping the power low in standby mode.

The MAX4951AE preserves signal integrity at the receiver by reestablishing full output levels. It reduces the total system jitter (T_J) by squaring up the signal and providing excellent return loss match to the source. This device features channel-independent digital boost controls to drive SATA outputs over normal trace lengths and eSATA connector. SATA Out-Of-Band (OOB) signaling is supported using high-speed amplitude detection on the inputs, and squelch on the corresponding outputs. Inputs and outputs are all internally 50Ω terminated.

The MAX4951AE operates from a single +3.3V (typ) supply and is available in a small, 4mm x 4mm, TQFN package with flow-through traces for ease of layout. This device is specified over the 0°C to +70°C operating temperature range.

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