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| 19-2179; Rev 0; 5/02 MAX3971/MAX3971A Evaluation Kits _______________ General Description The MAX3971/MAX3971A evaluation kits (EV kits) simplify evaluation of the MAX3971 10.3Gbps limiting amplifier and the MAX3971A 10.7Gbps limiting amplifier. The EV kit enables testing of all the device's functions. SMA connectors with 50 controlled impedance connections to the MAX3971/MAX3971A are provided for all data input and output ports to facilitate connection to high-speed test equipment. _________________________Features Evaluate: MAX3971/MAX3971A SMA Connections for all High-Speed Inputs and Outputs Single +3.3V Power-Supply Fully Assembled and Tested ____________________ Component List DESIGNATION QTY C1-C4 C6, CZ C7 C8 C11-C14, C16-C19 J1-J4, J9-J13 J6, J7 JU1 JU2 JU2 L1 U1 None None 4 2 1 1 8 9 2 1 1 1 1 DESCRIPTION 1000pF +10% 10V min ceramic capacitors (0402) 0.1F +10% 10V min ceramic capacitors (0603) 2.2F +10% 10V min ceramic capacitor (1206) 33F +10% 10V min Tantalum capacitor 0.1F +10% 10V min ceramic capacitors (0402) SMA connectors, edge mount, tab contact Test points 1 x 3-pin header (0.1in centers) 1 x 2-pin header (0.1in centers) Shunt Ferrite bead inductor BLM11HA102SG MAX3971UGP 4X4 20 QFN-EP MAX3971AUGP 4X4 20 QFN-EP MAX3971/MAX3971A evaluation circuit board, rev C MAX3971/MAX3971A data sheet _______________Ordering Information PART TEMP RANGE MAX3971EVKIT 0C to +85C MAX3971AEVKIT 0C to +85C *EP = exposed pad IC PACKAGE 20 QFN-EP* 20 QFN-EP* ______________ Component Suppliers SUPPLIER AVX Murata PHONE 803-946-0690 814-237-1431 FAX 803-626-3123 814-238-0490 Note: Please indicate that you are using the MAX3971/MAX3971A when ordering from these suppliers. _________________________ Quick Start 1) 2) Connect a +3.3V power supply to J6 (VCC). Connect the power supply ground to J7. For the MAX3971, apply a 10.3Gbps, 10mVP-P to 800mVP-P differential signal between J1 (IN+) and J2 (IN-). For the MAX3971A, apply a 10.7Gbps, 5mVP-P to 800mVP-P differential signal between J1 (IN+) and J2 (IN-) Connect a jumper from the center pin to the ground pin of JU1 to enable the output. Connect a 50 oscilloscope to the SMA connectors J3 and J4 (OUT+, OUT-) to observe the output of the limiter. The output signal is approximately 250mVP-P. 3) 4) 1 1 1 _______________________________ Notes At high frequencies such as from 1GHz to 10GHz, delays with the board and cables affect measurements. Mismatches in cables can cause significant measurement errors. Edge speeds are best observed by using single-ended methods. Careful calibration of cables, attenuators, and the board is necessary. _________________________________________________________________ Maxim Integrated Products 1 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. MAX3971/MAX3971A Evaluation Kits J6 L1 C8 33F C7 2.2F VCC Evaluate: MAX3971/MAX3971A J7 C6 0.1F VCC VCC J13 C1 1000pF CZ 0.1F VCC 1000pF C2 JU1 JU2 20 VCC1 C11 0.1F J2 C12 0.1F 1 2 3 4 5 GNDIN+ IN+ INGNDINN.C. GND C16 0.1F C18 0.1F 6 J11 N.C. 7 GND 8 N.C. 9 MAX3971 MAX3971A 19 CZ18 CZ+ 17 16 VCC 15 14 13 12 11 C4 1000pF C3 1000pF C13 0.1F C14 0.1F VCC J3 J4 VCC2 DISABLE VCC3 J1 IN+ IN- U1 OUT+ OUTVCC3 GND N.C. 10 OUT+ OUT- J9 CALIBRATION STRIP J10 C17 0.1F C19 0.1F J12 Figure 1. MAX3971/MAX3971A EV Kit Schematic 2 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 MAX3971/MAX3971A Evaluation Kits Evaluates: MAX3971/MAX3971A Figure 2. MAX3971/MAX3971A EV Kit Component Placement Guide-Component Side Figure 3. MAX3971/MAX3971A EV Kit PC Board Layout-Component Side _________________________________________________________________________________________ 2002 Maxim Integrated Products Printed USA 3 is a registered trademark of Maxim Integrated Products MAX3971/MAX3971A Evaluation Kits Evaluate: MAX3971/MAX3971A Figure 4. MAX3971/MAX3971A EV Kit PC Board Layout - Ground Plane Figure 5. MAX3971/MAX3971A EV Kit PC Board Layout-Power Plane 4 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 MAX3971/MAX3971A Evaluation Kits Evaluates: MAX3971/MAX3971A Figure 6. MAX3971/MAX3971A EV Kit PC Board Layout-Solder Side 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. _________________________________________________________________________________________ 2002 Maxim Integrated Products Printed USA 5 is a registered trademark of Maxim Integrated Products |
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