19-1127; Rev 1; 7/98 MAX4147 Evaluation Kit The MAX4147 evaluation kit (EV kit) simplifies evaluation of the MAX4147 high-speed, high-output-current, differential line driver. The EV kit circuit demonstrates the MAX4147 (AV = 2V/V). This EV kit may also be used to evaluate the MAX4142. Contact the factory to order a free sample. Ordering Information PART MAX4147EVKIT-SO TEMP. RANGE +25°C BOARD TYPE Surface Mount Note: To evaluate the MAX4142, request a MAX4142ESD free sample. Component List DESIGNATION QTY DESCRIPTION C1–C4 4 0.1µF, 10% ceramic capacitors Vitramon VJ1206Y104KXX C5, C6 2 10µF, 10V, 20% tantalum capacitors AVX TAJB106M010 Sprague 293D106X0010B IN+, IN-, OUT+, OUT- 4 SMA connectors R1–R4 4 49.9Ω, 1% resistors U1 1 MAX4147ESD None 1 MAX4147 PC board None 1 MAX4147 data sheet JU1 1 3-pin header None 1 Shunt for JU1 ____________________________Features ♦ 300MHz Bandwidth ♦ 2000V/µs Slew Rate ♦ Fully Assembled and Tested _________________________Quick Start The MAX4147 EV kit is fully assembled and tested. Follow these steps to verify board operation. Do not turn on the power supply until all connections are completed. 1) Connect a +5V supply to the pad marked VCC. Connect a -5V supply to the pad marked VEE. Connect the power-supply ground to the pad marked GND. 2) Verify that there is a shunt across pins 1 and 2 of jumper JU1. 3) Apply signals to IN+ and IN-, whose differential voltage does not exceed 2.5V. These signals must not exceed the amplifier’s input common-mode range of ±2.8V. 4) Connect the output marked OUT+ or OUT- to an oscilloscope through a terminated 50Ω cable. 5) Turn on the power supply and verify the output signal on the oscilloscope. _______________Detailed Description Shutdown Control The MAX4147 provides a SHDN pin to disable the output. Table 1 lists the options available for the shutdowncontrol jumper, JU1. To use an external controller, remove the shunt on JU1 completely and connect the external controller to the pad labeled SHDN. SHDN is a TTL/CMOS logic-level input. Table 1. Jumper JU1 Functions ______________Component Suppliers SUPPLIER PHONE SHUNT LOCATION SHDN PIN 1&2 Connected to GND MAX4147 enabled 2&3 Connected to VCC Shutdown mode MAX4147 OUTPUT FAX AVX (803) 946-0690 (803) 626-3123 Sprague (603) 224-1961 (603) 224-1430 Vishay/Vitramon (203) 268-6261 (203) 452-5670 ________________________________________________________________ Maxim Integrated Products 1 For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. Evaluates: MAX4142/MAX4147 General Description Evaluates: MAX4142/MAX4147 MAX4147 Evaluation Kit Layout Considerations been placed as close to the four MAX4147 supply pins as possible. The ground plane has been removed around and under the MAX4147 to reduce stray capacitance. The removal of ground plane around the input SMA connectors reduces distortion. The MAX4147 EV kit layout has been optimized for high-speed signals and low distortion, with careful attention given to grounding, power-supply bypassing, and signal-path layout. The small, surface-mount, ceramic bypass capacitors (C1, C2, C3, and C4) have VCC VEE C6 10µF 10V C5 10µF 10V 1 C1 0.1µF 2 R1 49.9Ω 3 VCC 3 2 1 U1 VCC 14 C4 0.1µF MAX4147 IN+ SHDN VEE DISABLE JU1 4 IN+ N.C. SHDN OUT+ SENSE+ GND 13 R3 49.9Ω OUT+ 12 11 ENABLE 5 6 INR2 49.9Ω VEE C2 0.1µF 7 N.C. SENSE- IN- OUT- VEE VCC 10 R4 49.9Ω 9 8 OUTVCC C3 0.1µF Figure 1. MAX4147 EV Kit Schematic 2 _______________________________________________________________________________________ MAX4147 Evaluation Kit Evaluates: MAX4142/MAX4147 Figure 2. MAX4147 EV Kit Component Placement Guide— Component Side Figure 3. MAX4147 EV Kit PC Board Layout—Component Side Figure 4. MAX4147 EV Kit PC Board Layout—Solder Side _______________________________________________________________________________________ 3 Evaluates: MAX4142/MAX4147 MAX4147 Evaluation Kit NOTES 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. 4 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1998 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.