MAX3987 19-4973 Rev 2 4/12 8.5Gbps Quad Equalizer and Preemphasis Driver General Description Features S Up to 8.5Gbps NRZ Data Speed The MAX3987 is a 4-channel receive and transmit equal- izer (EQ). It compensates for transmission medium S Receive Equalization Up to 30in FR4 losses encountered with FR4 stripline/microstrip and/or S Preemphasis Drive Up to 30in FR4 high-speed cable. The device can be used at the begin- S Global and Individual Programming of ning, middle, or end of a channel. The input equalization Preemphasis, Output Drive Levels, Polarity requires no setting, and the output preemphasis (PE) is Inversion, and Offset Cancellation programmable. S Signal Detect and Internal Output Squelch For each channel, the preemphasis level, output drive S Compliant with SAS-2 and SATA Revision 3 OOB level, output polarity, and powering down of unused out- S Coding Independent, 8B/10B, 64B/66B, 2 puts are programmable through an I C serial interface. It Scrambled, and Others can also be configured globally through pins. S Differential CML Data-Output Drive The device operates from a 2.5V or 3.3V supply, and is 2 S I C Serial Interface and Pin Programmable packaged in a 7mm x 7mm, 48-pin TQFN. S Software Power-Down of Unused Outputs Applications S 0.5W Typical Power Dissipation for Drive Level 1 Preemphasis and Receive Equalization at V = 2.5V CC Redrive S High-Performance, Lead-Free, 7mm x 7mm, 48-Pin TQFN Package FR4 and Cable Equalization XAUI and XAUI2, Fibre Channel, Interlaken, Ordering Information TM/SM InfiniBand , SAS-2 and SATA Revision 3 OOB PCIe Compatible PART TEMP RANGE PIN-PACKAGE MAX3987ETM+ -40NC to +85NC 48 TQFN-EP* InfiniBand is a trademark/service mark of InfiniBand Trade +Denotes a lead(Pb)-free/RoHS-compliant package. Association. *EP = Exposed pad. PCIe is a registered trademark of PCI-SIG Corp. Typical Application Circuit MAX3987 FABRIC AS AN BACKPLANE LINE CARD EQUALIZER MIDPLANE CARD Rx Tx SerDes SerDes Tx Rx 2in < L < 30in 2in < L < 30in MAX3987 AS A DRIVER Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLE8.5Gbps Quad Equalizer and Preemphasis Drive ABSOLUTE MAXIMUM RATINGS Termination Supply Voltage Range .....................-0.5V to +3.9V Continuous Power Dissipation (T = +70NC) A Signal Voltage Range on Any One 48-Pin TQFN (derate 27.8mW/NC above +70NC) ............2.22W Signal Wire (TTL) ................................. -0.5V to (V + 0.3V) Storage Ambient Temperature Range ............. -65NC to +150NC CC ESD Human Body Model, Any Pin .................................Q2000V Signal Voltage Range on Any One Lead Temperature (soldering, 10s) ................................+300NC Signal Wire (CML) ................................ -0.5V to (V + 0.3V) CC Soldering Temperature (reflow) ......................................+260NC CML Output Loading (Shorted to Ground) ........................90mA Operating Ambient Temperature Range ........... -40NC to +85NC 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. SPECIFICATION TABLES (Typical values measured at V = 3.3V, T = +25NC, unless otherwise specified.) CC A OPERATING CONDITIONS PARAMETER CONDITIONS MIN TYP MAX UNITS 2.5V supply 2.375 2.5 2.625 Supply Voltage V (Note 1) 3.3V supply 2.97 3.3 3.63 2.5V supply 0 +25 +85 Operating Ambient NC Temperature 3.3V supply -40 +25 +85 Supply Noise Tolerance 100kHz < f < 200MHz 50 mV P-P AC Common-Mode Noise at the 2MHz < f < 200MHz 150 mV P-P Input Bit Rate NRZ data (Note 2) 8.5 Gbps CID Consecutive identical digits (bits) 100 Bits Time to Reach 50% Mark/Space For continuous traffic 1 Fs Ratio DC-Blocking Capacitor For bursty traffic such as SAS/SATA 12 nF SUPPLY CHARACTERISTICS: 2.5V PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V -5% 2.5 +5% V CC Four outputs in level 3 drive squelch 320 385 turned on Four outputs in level 3 drive squelch 306 365 turned off Four outputs in level 2 drive squelch 286 340 turned on Supply Current I mA CC Four outputs in level 2 drive squelch 271 325 turned off Four outputs in level 1 drive squelch 235 280 turned on Four outputs in level 1 drive squelch 221 265 turned off Inrush Current DI (Note 3) +10 % CC Power-On Delay t (Note 3) 100 ms POWERON 2 MAX3987