MAX4986 19-5127 Rev 1 7/12 SAS/SATA Single Lane 2:1/1:2 Multiplexer/ Demultiplexer Plus Redriver with Equalization General Description Features The MAX4986 active 2:1/1:2 multiplexer/demultiplexer S Single +3.3V Supply Operation equalizes and redrives SAS/SATA or SATA-only signals S Low-Power, 1mA (typ) Standby up to 6.0Gbps and operates from a single +3.3V supply. Active-High Enable (EN) for Use with Power Good The MAX4986 features independent input equalization Active-Low Enable (EN) for Cable-Detect Function and output preemphasis. The MAX4986 enhances sig- S Supports SAS I/II/III P 6.0Gbps nal integrity at the receiver by equalizing the signal at S Independent Programmable Input Equalization the input and establishing preemphasis at the output Two Levels: 0dB, 4dB of the device. SAS/SATA and SATA-only out-of-band (OOB) signaling is supported using high-speed ampli- S Independent Programmable Output Preemphasis Two Levels: 0dB, 3dB tude detection on the inputs and squelch on the corre- sponding outputs. Inputs and outputs are internally 50I S Independent Programmable Output Level terminated and must be AC-coupled to the SAS/SATA Selection controller IC and SAS/SATA device. S Supports SAS/SATA OOB-Level Signaling The MAX4986 is available in a small (3.5mm x 9.0mm), Programmable SAS/SATA Threshold 42-pin TQFN package optimal for simplified layout and S Cable-Detect Feature for Low Power Consumption space-saving requirements. The MAX4986C is specified S On-Chip 50I Input/Output Terminations over the 0NC to +70NC commercial operating tempera- ture range. The MAX4986E is specified over the -40NC to S Inline Signal Traces for Simplified Layout +85NC extended temperature range. S Space-Saving, 3.5mm x 9.0mm TQFN Package with Exposed Pad Applications PC Servers Ordering Information Workstations PART TEMP RANGE PIN-PACKAGE Desktops MAX4986CTO+ 0NC to +70NC 42 TQFN-EP* Docking Stations MAX4986ETO+ -40NC to +85NC 42 TQFN-EP* +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. For pricing, delivery, and ordering information, please contact Maxim Direct 1 at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLESAS/SATA Single Lane 2:1/1:2 Multiplexer/ Demultiplexer Plus Redriver with Equalization ABSOLUTE MAXIMUM RATINGS (Voltages Referenced to GND.) Operating Temperature Range ........................ -40NC to +85NC V ..................................................................... -0.3V to +4.0V Junction Temperature Range ........................ -40NC to +150NC CC All Other Pins (Note 1) ........................... -0.3V to (V + 0.3V) Storage Temperature Range ......................... -65NC to +150NC CC Continuous Current IN P, IN M, OUT P, OUT M ........ Q30mA Lead Temperature (soldering, 10s) ...............................+300NC Peak Current IN P, IN M, OUT P, OUT M for 1Fs .... Q100mA Soldering Temperature (reflow) .....................................+260NC Continuous Power Dissipation (T = +70NC) A 42-Pin TQFN (derate 34.5mW/NC above +70NC) .... 2758mW Note 1: All I/O pins are clamped by internal diodes. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = +3.0V to +3.6V, C = 10nF coupling capacitor on each input and output, R = 50I on each input and output, T = 0NC to +70NC CC CL L A (MAX4986C), T = -40NC to +85NC (MAX4986E), unless otherwise noted. Typical values are at V = +3.3V and T = +25NC.) (Note 2) A CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC PERFORMANCE Power-Supply Range V 3.0 3.6 V CC 2.5 4 EN = 0 or EN = 1, V = 3.6V CC Standby Current I mA STBY 1.0 2 EN = 0 or EN = 1, V = 3.3V CC OUTPE = PEA = PEB = 0, 145 170 INEQ = EQA = EQB = 0 Supply Current I mA CC OUTPE = PEA = PEB = 1, 185 230 INEQ = EQA = EQB = 1 Input Termination, Single-Ended R DC 42.5 57.5 I RX-SE Output Termination, Single- R DC 42.5 57.5 I TX-SE Ended AC PERFORMANCE 0.1GHz < f P 0.3GHz -10 Input Return Loss, Differential SDD11 0.3GHz < f P 3.0GHz -7.9 dB (Note 3) 3.0GHz < f P 6.0GHz 0 -6 0.1GHz < f P 0.3GHz Input Return Loss, SCC11 -5 dB 0.3GHz < f P 3.0GHz Common Mode (Note 3) 3.0GHz < f P 6.0GHz 0 0.1GHz < f P 0.3GHz -10 Output Return Loss, Differential SDD22 0.3GHz < f P 3.0GHz -7.9 dB (Note 3) 3.0GHz < f P 6.0GHz 0 0.1GHz < f P 0.3GHz -6 Output Return Loss, SCC22 0.3GHz < f P 3.0GHz -5 dB Common Mode (Note 3) 3.0GHz < f P 6.0GHz 0 SAS 1.5Gbps, 3Gbps, MODE = 0 275 1600 Differential Input Voltage V SAS 6Gbps, MODE = 0 300 1600 mV IN-DIFF P-P SATA 1.5Gbps, 3Gbps, 6Gbps, MODE = 1 225 1600 Input Equalization EQ f = 1.5GHz, INEQ = 1 4 dB OAMP = 0 700 1200 f = 0.75GHz, 1.5GHz, Differential Output Voltage V mV OUT-DIFF P-P PE = 0 OAMP = 1 425 700 2 MAX4986