MAX14986 Dual 6GT/s SAS/SATA Redriver with Equalization and Extended Temperature Operation General Description Benefits and Features The MAX14986 dual-channel redriver is designed to High-Performance Solution Designed to Overcome redrive one full lane of SAS or SATA signals up to 6.0GT/s Lossy Channels (gigatransfers per second) and operates from a single 3dB of Independent (per Channel) Selectable Input +3.3V supply. EQ and Output Preemphasis The MAX14986 features independent input equalization Compensates Up to 30in of Channel Losses with and output preemphasis. It enhances signal integrity at Deterministic Jitter: 23ps (max) Random Jitter: P-P the receiver by equalizing the signal at the input and 1.5ps (max) RMS establishing preemphasis at the output of the device. SAS 8dB (typ) of Return Loss Up to 3.0GHz and SATA OOB (out-of-band) signaling is supported using Designed to Reliably Operate in Harsh Environments high-speed amplitude detection on the inputs and squelch Industrial Temperature Rated: -40C to +85C on the corresponding outputs. Inputs and outputs are all 2.5kV Human Body Model (HBM) ESD Protection internally 50 terminated and must be AC-coupled to the on All Pins SAS/SATA controller IC and SAS/SATA device. Housed in a Flow-Through (3.5mm x 5.5mm, The MAX14986 is available in a small 28-pin, 3.5mm x 28-Pin) TQFN Package for Resistance to 5.5mm TQFN package with flow-through traces for ease Vibration/Shocks of layout. This device is specified over the -40C to +85C Ease of Design and Layout extended operating temperature range. Single 3.3V Operation Applications Internal Input/Output 50 Termination Resistors Industrial/Embedded PCs on All Pins Computer on Modules Flow-Through Pinout Carrier Boards Test Equipment Ordering Information appears at end of data sheet. Rack Server Industrial PCs Medical Equipment For related parts and recommended products to use with this part, refer to www.maximintegrated.com/MAX14986.related. Pin Configuration TOP VIEW 24 23 22 21 20 19 18 17 16 15 25 14 PE1 GND GND 26 13 EQ1 MAX14986 GND 27 12 PE0 GND 28 *EP 11 EQ0 + 1 2 3 4 5 6 7 8 9 10 TQFN *CONNECT EXPOSED PAD (EP) TO GND. 19-6639 Rev 0 3/13 V CC V CC GND GND IN0P OUT0P IN0M OUT0M GND GND OUT1P IN1P OUT1M IN1M GND GND V V CC CC EN MODEMAX14986 Dual 6GT/s SAS/SATA Redriver with Equalization and Extended Temperature Operation Absolute Maximum Ratings (Voltages referenced to GND.) Continuous Power Dissipation (T = +70C) A V .......................................................................-0.3V to +4.0V TQFN (derate 28.6mW/C above +70C)..................2286mW CC All Other Pins ............................................. -0.3V to (V + 0.3V Operating Temperature Range ........................... -40C to +85C CC Continuous Current (PE , EQ , MODE) ..........................15mA Storage Temperature Range ............................ -55C to +150C Peak Current (for 10kHz, 1% duty cycle) Junction Temperature ........................................................+15C (IN , OUT ) ...............................................................100A Lead Temperature (soldering, 10s) .................................+300C Soldering Temperature (reflow) .......................................+260C 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. (Note 1) Package Thermal Characteristics Junction-to-Ambient Thermal Resistance ( ) .............2.7C/W JC Junction-to-Ambient Thermal Resistance ( ) ..............35C/W JA Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. Electrical Characteristics (V = +3.0V to +3.6V, C = 12nF, R = 50, T = -40C to +85C, unless otherwise noted. Typical values are at V = +3.3V, CC COUPLE L A CC T = +25C.) (Note 2) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Operating Power-Supply Range V 3.0 3.6 V CC EQ = PE = GND 140 175 Operating Supply Current I mA CC EQ = PE = V 175 220 CC Standby Supply Current I EN = GND 16 20 mA STBY Input Termination R Single-ended to V 42.5 57.5 RX-SE CC Output Termination R Single-ended to V 42.5 57.5 TX-SE CC AC PERFORMANCE 0.1GHz f 0.3GHz -10 Differential Input Return Loss S 0.3GHz f 3.0GHz -7.9 dB DD11 (Note 3) 3.0GHz f 6.0GHz 0 0.1GHz f 0.3GHz -6 Common-Mode Input Return Loss S 0.3GHz f 3.0GHz -5 dB CC11 (Note 3) 3.0GHz f 6.0GHz 0 0.1GHz f 0.3GHz -10 Differential Output Return Loss S 0.3GHz f 3.0GHz -7.9 dB DD22 (Note 3) 3.0GHz f 6.0GHz 0 0.1GHz f 0.3GHz -6 Common-Mode Output Return S 0.3GHz f 3.0GHz -4 dB CC22 Loss (Note 3) 3.0GHz f 6.0GHz 0 SAS 1.5, 3.0, or 6.0GT/s MODE = GND 275 1600 Differential Input Voltage V mV IN-DIFF P-P SATA 1.5, 3.0, or 6.0GT/s MODE = V 225 1600 CC Input Equalization EQ EQ = V (Note 4) 3 dB CC Differential Output Voltage V f = 750MHz, PE = GND 750 1200 mV OUT-DIFF P-P Maxim Integrated 2 www.maximintegrated.com