MAX4986ETO+

The MAX4986ETO+ is a SAS/SATA single lane 2:1/1:2 multiplexer/demultiplexer plus redriver with equalization in 42 pin TQFN package. This active 2:1/1:2 multiplexer/demultiplexer equalizes and redrives SAS/SATA or SATA only signals up to 6Gbps and operates from single 3.3V supply. The MAX4986 has independent input equalization and output preemphasis. It enhances signal integrity at receiver by equalizing the signal at input and establishing preemphasis at output of the device. The SAS/SATA and SATA only out of band (OOB) signalling is supported using high speed amplitude detection on inputs and squelch on corresponding outputs. Inputs and outputs are internally 50 ohm terminated and must be AC coupled to SAS/SATA controller IC and SAS/SATA device. It has -10dB differential input return loss, -6dB common mode input return loss, -10dB differential output return loss and -6dB common mode output return loss at 0.1GHz <lt/> f ≤ 0.3GHz.

• Supply voltage range from 3V to 3.6V
• Operating temperature range from -40°C to 85°C
• Supply current of 145mA (OUTPE=PEA=PEB=0, INEQ=EQA=EQB=0) and standby current of 1mA (VCC=3.3V)
• Active-high enable for use with power good and active-low enable for cable detect function
• Inline signal traces for simplified layout
• Supports SAS I/II/III P and 6Gbps cable detect feature for low power consumption
• Independent programmable input equalization two levels (0dB, 4dB)
• Independent programmable output pre-emphasis two levels (0dB, 3dB)
• Deterministic jitter of 20psP-P and random jitter of 1psRMS
• Supports SAS/SATA OOB level signalling and programmable SAS/SATA threshold

Applications

Signal Processing, Portable Devices

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party