MAX3784AEVKIT

19-0027; Rev 0; 10/04 M A X 3 7 8 4 A Ev a l u a t i o n K i t _______________ Ge n e r a l De s c r i p t i o n ____________________ Co m p o ne n t L i s t DESIGNATION QTY C1 1 C2–C9 8 L1 1 J3–J6 4 J9 TP1, TP2, TP7, TP8 1 U1 1 None 1 4  Fully Assembled and Tested  Fully Matched for Best Return Loss  SMA Connectors for All High-Speed Inputs and Outputs  Calibration Test Strip _______________ Or d e r i n g I n f o r m a t i o n DESCRIPTION 33mF tantalum capacitor AVX TAJC336K010 0.1mF –10%, 10V min ceramic capacitors (0402) PART TEMP RANGE MAX3784AEVKIT 0•C to +85•C 4.7mH inductor Coilcraft 1008CT040XJBC SMA connectors, edge mount, tab contact EFJohnson 142-0701-851 2-pin header, 0.1in center Test points Digi-Key 5000K-ND MAX3784A, 16-pin QFN Note: U1 has an exposed pad, which requires that it be solder-attached to the circuit board to ensure proper functionality of the part. MAX3784/MAX3784A EV kit circuit board, rev B ______________ Co m p o ne n t Su p p l i e r s SUPPLIER IC PACKAGE 16 QFN PHONE FAX AVX 843-444-2863 843-626-3123 Coilcraft 847-639-6400 847-639-1469 Murata 415-964-6321 415-964-8165 _________________________________________________________________Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 Ev a l u a t e s : M A X 3 7 8 4 A The MAX3784A evaluation kit (EV kit) simplifies evaluation of the MAX3784A 5Gbps equalizer with increased output signal amplitude. The EV kit enables testing of all device functions. SMA connectors with 50W controlled impedance to the MAX3784A are provided for all high-speed ports to facilitate connection to test equipment. ___________________________ Fe a t u r e s M A X 3 7 8 4 A Ev al u a t i o n K i t 4) Connect signals OUT+ and OUT- to a >10GHz oscilloscope with 50W input terminations. Monitor output signals. 1) Connect a +3.3V power supply to TP1 (VCC). Connect the power supply ground to TP2. 5) The signal generator should produce a short run length (CID < 20), DC-balanced pattern such as a PRBS 27 - 1 or K28.5. Set the data rate to 5Gbps. 2) Connect a differential signal between 400mV and 1000mV to the inputs IN+ and IN- using 50W cables. 6) Evaluation: After the board has been initially checked out, evaluation can begin with a FR4 PC board. It is advisable to start with a board length of 20in and then progress to longer lengths. 3) If not already done, disconnect jumper test point J9. This ensures that the part is enabled and not in standby mode. TP1 VCC TP2 VCC L1 4.7uH C1 33uF C2 0.1uF C3 0.1uF C4 0.1uF C5 0.1uF TP7 TP8 GND J7 J8 CALIN CALOUT J9 C7 0.1uF 4 EN 12 IN+ OUT+ MAX3784A IN- OUT- 5 6 7 C9 0.1uF 10 9 EP* GND 11 GND J6 J5 C8 0.1uF NC 3 J4 U1 VCC 2 VCC 13 VCC VCC GND J3 14 NC 1 C6 0.1uF 15 NC 16 NC VCC NC Ev a l u a t e s : M A X 3 7 8 4 A _________________________ Qu i c k St a r t 8 VCC * EXPOSED PAD IS CONNECTED TO GND Figure 1. MAX3784A EV Kit Schematic 2 _________________________________________________________________________________________ M A X 3 7 8 4 A Ev al u a t i o n K i t Figure 5. MAX3784A EV Kit PC Board Layout— Power Plane Figure 3. MAX3784A EV Kit PC Board Layout— Component Side Figure 6. MAX3784A EV Kit PC Board Layout— Solder Side Figure 4. MAX3784A EV Kit PC Board Layout— Ground Plane Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600___________________3 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products Ev a l u a t e s : M A X 3 7 8 4 A Figure 2. MAX3784A EV Kit PC Component Placement Guide—Component Side