MAX3815A 19-4822 Rev 0 7/09 TMDS Digital Video Equalizer for HDMI/DVI Cables General Description Features The MAX3815A cable equalizer automatically provides Guaranteed Performance to 2.25Gbps (HDMI 1.3), S compensation for DVI and HDMI v1.3 cables. It Improved Jitter Performance at Low Source extends the usable cable distance up to 40 meters Amplitude, and Enhanced Output Driver (1.65Gbps) and 35 meters (2.25Gbps). The MAX3815A Extends 2.25Gbps TMDS Interface Length S is designed to equalize signals encoded in the transition- 0 to 35 Meters Over HDMI Cable, 24 AWG minimized differential signaling (TMDS ) format. 0 to 22 Meters Over HDMI Cable, 28 AWG The MAX3815A features four CML-differential inputs and Extends 1.65Gbps TMDS Interface Length S outputs (three data and one clock). It provides a loss-of- 0 to 40 Meters Over HDMI Cable, 24 AWG signal (LOS) output that indicates loss-of-clock signal. 0 to 28 Meters Over HDMI Cable, 28 AWG The outputs include a disable function. Upon LOS, the Compatible with HDTV Resolutions 720p, 1080i, S chip is powered down. For direct chip-to-chip communi- 1080p, and 1080p with 36-Bit Color cation, the output drivers can be switched to one-half the DVI output specification to conserve power and reduce Compatible with Computer Resolutions VGA, S SVGA, XGA, SXGA, UXGA, and WUXGA EMI. The output drive current can also be increased to allow the use of back termination resistors for improved Fully Automatic Equalization, No System Control S signal integrity. Equalization can be automatic or set to Required manual control for specific in-cable applications. 3.3V Power Supply S The MAX3815A is available in a 7mm x 7mm, 48-pin Power Dissipation of 0.6W (typ) S TQFP-EP package and operates over a 0C to +70C 7mm x 7mm, 48-Pin TQFP Lead-Free Package S temperature range. Applications Ordering Information Front-Projector HDMI/DVI Inputs PART TEMP RANGE PIN-PACKAGE High-Definition Televisions and Displays MAX3815ACCM+ 0NC to +70NC 48 TQFP-EP* HDMI/DVI-D Cable-Extender Modules and Active +Denotes a lead(Pb)-free/RoHS compliant package. Cable Assemblies *EP = Exposed pad. LCD Computer Monitors Pin Configuration appears at end of data sheet. HDMI 1.3 Deep Color Systems Typical Operating Circuits HDMI OR DVI EXTENDER BOX UP TO 35m OF HDMI STANDARD LENGTH MAX3815A OR DVI-D OR HDMI CABLE HDTV EQUALIZER DVI CABLE VIDEO SOURCE MAX3816A DDC EXTENDER Typical Operating Circuits continued at end of data sheet. DVI is a trademark of Digital Display Working Group. HDMI is a trademark of HDMI Licensing, LLC. TMDS is a registered trademark of Silicon Image, Inc. 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 AVAILABLETMDS Digital Video Equalizer for HDMI/DVI Cables ABSOLUTE MAXIMUM RATINGS Supply Voltage Range, V ................................-0.5V to +4.0V Continuous Power Dissipation (T = +70C) CC A Voltage Range at Output CML Pins .....................-0.5V to +4.0V 48-Pin TQFP (derate 36.2mW/C above +70C) ........2896mW Voltage Range at Input CML Pins, RES, VCC T, Operating Junction Temperature Range ......... -55C to +150C and GND T ............................................ -0.5V to (V + 0.7V) Storage Temperature Range ............................ -55C to +150C CC Voltage Between Input CML Complementary Pair ........... 3.3V Die Attach Temperature ..................................................+400C Voltage Between Output CML Complementary Pair ........ 1.4V 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 +3.5V, T = 0C to +70C. Typical values are at V = +3.3V, external terminations = 50 1%, MAX3815A in CC A CC automatic equalization mode (EQCONTROL = GND), TMDS rate = 250Mbps to 2.25Gbps, T = +25C, unless otherwise noted.) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 210 270 Clock present (CLKLOS = HIGH) Power-Supply Current I mA CC 12 Clock and data absent (CLKLOS = LOW) Supply-Noise Tolerance DC to 500kHz 200 mV P-P EQUALIZER PERFORMANCE 1dB skin-effect loss at 825MHz 0.05 Residual Output Jitter (Cables Only) 0.25Gbps to 1.65Gbps UI (Notes 1, 2, and 3) 24dB skin-effect loss at 825MHz 0.13 0.21 1dB skin-effect loss at 825MHz 0.1 Residual Output Jitter (Cables Only) 1.65Gbps to 2.25Gbps UI (Notes 1, 2, and 3) 24dB skin-effect loss at 825MHz 0.14 0.28 CID Tolerance 20 Bits CONTROL AND STATUS Differential peak-to-peak at EQ input with max 225MHz clock (see the Typical CLKLOS Assert Level 50 mV P-P Operating Characteristics for more information) CML INPUTS (CABLE SIDE) Differential Input-Voltage Swing V At cable input 800 1000 1200 mV ID P-P V - V + CC CC Common-Mode Input Voltage V V CM 0.4 0.1 Input Resistance R Single-ended 45 50 55 IN W CML OUTPUTS (ASIC SIDE) OUTLEVEL = HIGH 800 1000 1200 50W load, each side to V CC OUTLEVEL = LOW 500 Differential Output-Voltage Swing V mV OD P-P With back termination as shown in Figure 4, 910 OUTLEVEL = OPEN Output-Voltage High Single-ended, OUTLEVEL = HIGH V mV CC V - V - CC CC Output-Voltage Low Single-ended, OUTLEVEL = HIGH mV 600 400 Output Voltage During Clock V - V + CC CC Single-ended mV Absence (CLKLOS = LOW) 10 10 2 MAX3815A