EVALUATION KIT AVAILABLE MAX3802 3.2Gbps Quad Adaptive Cable Equalizer with Cable Driver General Description Features The MAX3802 has four independent adaptive cable Single 3.3V Operation equalizers and cable drivers on a single chip. It is Four Independent Equalizers and Drivers designed for coaxial and twin-axial cable point-to-point 725mW at 3.3V Typical Power Dissipation scrambled-data communication applications. The driver features differential current-mode logic (CML) inputs and Data Rates Up to 3.2Gbps outputs. The equalizer includes differential CML data Equalizer Automatically Adjusts for Different Cable inputs and outputs and a TTL loss-of-signal (LOS) output. Lengths The adaptive cable equalizer can equalize differential or 0 to 30dB Equalization at 1.6GHz (3.2Gbps) single-ended signals at data rates up to 3.2Gbps. It auto- Loss-of-Signal (LOS) Indicator matically adjusts to attenuation caused by skineffect loss- On-Chip Input and Output Terminations es of 30dB at 1.6GHz. The equalizer effectively extends the usable length of copper cable in high-frequency inter- Low External Component Count connect applications. 0C to +85C Operating Temperature Range ESD Protection on Cable Inputs and Outputs Applications High-Speed Links in Communications and Data Ordering Information Systems Backplane and Twin-Axial Cable Interconnects PART TEMP RANGE PIN-PACKAGE Category 5 UTP-Based Systems MAX3802UTK+ 0C to +85C 68 TQFN-EP* +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. Pin Configuration appears at end of data sheet. Typical Application Circuit 3.3V 3.3V EP* V EP* V CC CC DIN DOUT EOUT COAX, TWIN-AX, OR PC BOARD x 4 EIN 4 4 4 4 MAX3802 MAX3802 CARD 1 CARD 2 EIN COAX, TWIN-AX, OR PC BOARD x 4 DIN EOUT DOUT 4 4 4 4 LOS RMOD CIM LOS RMOD CIM 4 4 4 4 4 4 R MOD R MOD THIS SYMBOL INDICATES A CONTROLLED-IMPEDANCE TRANSMISSION LINE. *EP MUST BE SOLDERED TO GROUND FOR PROPER THERMAL AND ELECTRICAL PERFORMANCE. 19-2289 Rev 3 10/14MAX3802 3.2Gbps Quad Adaptive Cable Equalizer with Cable Driver Absolute Maximum Ratings Supply Voltage, V ............................................-0.5V to +6.0V Continuous Power Dissipation (T = +70C) CC A Voltage at LOS , CIM , and RMOD ...... -0.5V to (V + 0.5V) 68-Pin TQFN (derate 50mW/C above +70C) ..................4W CC Voltage at EIN +, EIN -, Operating Ambient Temperature Range .................0C to +85C DIN +, and DIN - .............................(V - 1V) to (V + 0.5V) Storage Ambient Temperature Range .............. -55C to +150C CC CC Current Out of EOUT +, EOUT -, Lead Temperature (soldering, 10s) .................................+300C DOUT +, and DOUT - ...................................................25mA 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. DC Electrical Characteristics (V = 3.14V to 3.46V, T = 0C to +85C. Typical values are at V = 3.3V and T = +25C, unless otherwise noted.) CC A CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Current I Includes external load current (Note 1) 220 345 mA CC CABLE DRIVER INPUT SPECIFICATIONS Input Voltage V +, V - V + DIN CC CC V (Single Ended) V - 0.6 0.2 DIN Input Voltage (Differential) V 400 1100 mV DIN P-P Input Impedance Single ended 40 50 60 CABLE DRIVER OUTPUT SPECIFICATIONS RMOD = 10k (Note 2) 750 825 1000 Output Voltage (Differential) mV P-P RMOD = 20k (Note 2) 400 445 550 Output Impedance Single ended 50 62.5 75 CABLE EQUALIZER INPUT SPECIFICATIONS Minimum Cable Input (Differential) 3.2Gbps, 30dB cable loss (Note 3) 400 mV P-P Maximum Cable Input (Differential) 600 mV P-P Input Impedance 40 50 60 CABLE EQUALIZER OUTPUT SPECIFICATIONS Output Voltage (Differential) (Note 2) 500 1000 mV P-P Output Impedance Single ended 50 62.5 75 Output high (Note 4) 2.4 Voltage at LOS V Output low (Note 4) 0.4 Maxim Integrated 2 www.maximintegrated.com