MAX3814 19-0813 Rev 2 12/10 DVI/HDMI TMDS FR-4 and Cable Equalizer/Driver General Description Features The MAX3814 TMDS EQ/driver IC compensates for Equalizes FR-4 Board Microstrip and Cable HF FR-4 and cable losses up to the DVI/HDMI transmit Losses Up to 15dB at 825MHz for Operation at connector and provides a fully compliant DVI/HDMI 0.25Gbps to 1.65Gbps TMDS output. The device can also be used in DVI/HDMI Compatible with HDMI 1.3 cable applications to extend reach and improve jitter margin of cable channels at the receive-side connector. Less Than 0.2UI Residual Jitter at 1.65Gbps for P-P The on-chip TMDS drivers operate at a standard cur- 0 to 15dB Channel Loss at 825MHz rent level for implementing a typical DVI/HDMI non- Input Terminations: 50 (Each Side to V ) 10% CC back-terminated transmitter, as well as a 50% higher current mode for using a 200 back termination resis- Output of Driver is a Fully DVI/HDMI TMDS- tor (nonmatching) to achieve a 10dB return loss. Compatible Cable Driver Typical DVI/HDMI output drivers contribute to reflection Output Amplitude: 1.05V Differential P-P problems between the connector and a typical high- impedance (open) DVI/HDMI Tx output. The selectable Enable Pin to Select Normal Operation or Power- output current (LEVEL pin) gives the option of partial Down Mode back termination (e.g., differentially connected 200) to LEVEL Pin to Select Output Current for Use With mitigate the reflection problem effectively while keeping common-mode offset to a minimum. or Without Back Termination The 4-channel implementation treats all channels identi- 32-Pin TQFP for Four Channels Any Channel Can cally. To allow board layout flexibility for DVI and HDMI Be Either a TMDS Data or Clock Signal connectors, which have different channel order, the V = 3.3V Signal Pins Have Absolute Max CC clock and data channels can be arbitrarily assigned. Ratings of 5.5V (for Fault Conditions) The MAX3814 operates from a 3.3V power supply, standard for DVI/HDMI applications, and is packaged Ordering Information in a 5mm x 5mm x 0.1mm, 32-pin TQFP package. PART TEMP RANGE PIN-PACKAGE Applications MAX3814CHJ+ 0C to +70C 32 TQFP Laptop PC TMDS Equalizer and Driver +Denotes a lead(Pb)-free/RoHS-compliant package. Docking Station TMDS Equalizer and Driver Pin Configuration appears at end of data sheet. Cable TMDS Equalizer Simplified Functional Diagram TERMINATED TO V CC IND+/- 4 OUTD+/- INC+/- 3 OUTC+/- 4 4 INB+/- 2 OUTB+/- 3 3 LIMITING INA+/- DRIVER 1 OUTA+/- EQUALIZER 2 AMPLIFIER 2 1 1 ENABLE LEVEL MAX3814 OUTPUT LEVEL CONTROL TMDS is a trademark of Silicon Image, Inc. DVI is a trademark of Digital Display Working Group. HDMI is a registered trademark and registered service mark of HDMI Licensing, LCC. 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 AVAILABLEDVI/HDMI TMDS FR-4 and Cable Equalizer/Driver ABSOLUTE MAXIMUM RATINGS Termination-Supply Voltage Range.......................-0.5V to +4.0V CML Output Loading (termination)............................0 to Open Signal Voltage Range on Any One Signal Wire ....-0.5V to +4.0V Operating Ambient Temperature Range ................0C to +70C CML Common-Mode Voltage Range on Storage Ambient Temperature Range...............-40C to +150C Any I/O Pair (sustained) .....................................-0.5V to +5.5V ESD Human Body Model, Any Pin .....................................2000V CML Common-Mode Voltage Range on Any I/O Pair Lead Temperature (soldering, 10s) .................................+300C (sustained, within V and GND) ...-3.3V to +3.3V, Differential Soldering Temperature (reflow) .......................................+260C CC 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 = +25C external terminations = 50 1% min/max values valid over V = 3.3V CC A CC 0.3V, T = 0C to +70C with external terminations = 50 1% to voltage = 3.3V 0.7V. Tested at 1.65Gbps. AC parameters guar- A anteed by design and characterization.) OPERATING CONDITIONS PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V 3.0 3.3 3.6 V CC Operating Ambient Temperature 0 25 70 C Data Rate 0.25 1.65 Gbps At 825MHz, FR-4 microstrip compensate Maximum Channel Loss 15 dB on curve 20% to 80%, measured at source Source Output Rise/Fall Time 240 ps transmitter (input to channel) Measured at source transmitter (input to Differential Input-Voltage Swing 700 1050 1400 mV P-P channel) Maximum Supply Noise DC-5000kHz, all specifications maintained 50 mV P-P Tolerance POWER SUPPLY PARAMETER CONDITIONS MIN TYP MAX UNITS DC PARAMETERS Supply Current 110 140 mA TMDS EQUALIZER PERFORMANCE PARAMETER CONDITIONS MIN TYP MAX UNITS Residual Output Jitter (15 x Subtract source jitter for DJ, 0 to 15dB FR4 loss at RJ + DJ) from 0.25Gbps to 0.2 UI RMS P-P 825MHz (Note 1) 1.65Gbps 2 MAX3814