SATA/SAS 6Gb/s 4-Channel Unidirectional Redriver

PS8534 is 4-channel, unidirectional SATA/SAS redriver that supports up to 6Gb/s data rate.  The PS8534 is available in two power supply options, supporting a single supply voltage of 1.5V or 3.3V.  In application, the PS8534 compensates for PCB board losses and regenerates high-quality SATA/SAS electrical signals.

PS8534-1 block

The device integrates a programmable equalizer and driver for each of the four channels, and provides signal reconditioning for up to 40 inches of FR4 PCB input-side trace length.  Two PS8534 devices can be used together to support 4 SATA/SAS ports, with one placed close to the SATA/SAS host and the other placed close to the SATA/SAS connector.

Key Features

  • Supports unidirectional 4-channel SATA/SAS operation at 1.5Gbps, 3.0Gbps and 6.0Gbps
  • Supports Out-of-Band (OOB) signaling with fast OOB enter/exit time for SATA/SAS
  • UniEYE equalization compensates for up to 40″ PCB trace for 6Gbps signaling
  • Automatic power saving and squelch function
  • Integrated 50Ω termination resistors for Input and Output
  • Programmable output pre-emphasis levels
  • Pin control mode or I2C control mode for flexibility host control
  • Low power consumption
  • Power Supply Options
    • PS8534A:  Single 1.5Vsupply
    • PS8534B:  Single 3.3V supply
  • High ESD performance with HBM 8kV
  • 3x6mm 32-pin TQFN Halogen free RoHS Package
  • 0°C to 85°C Operating Temperature


  • Servers
  • Workstations
  • Data Storage Systems