19-1825; Rev 0; 10/00 MAX2750/MAX2751/MAX2752 Evaluation Kits Features ♦ Easy Evaluation of MAX2750/MAX2751/MAX2752 ♦ +2.7V to +5.5V Single-Supply Operation ♦ RF Output Matched to 50Ω ♦ All Critical Peripheral Components Included Component List DESIGNATION QTY C2, C3, C4, C5 4 Ordering Information DESCRIPTION TEMP. RANGE IC-PACKAGE 220pF ±5% ceramic capacitors (0603) Murata GRM39COH0G221J50 MAX2750EVKIT PART -40°C to +85°C 8 µMAX MAX2751EVKIT -40°C to +85°C 8 µMAX MAX2752EVKIT -40°C to +85°C 8 µMAX C1, C6 2 0.1µF ±5% ceramic capacitors (0603) Taiyo Yuden EMK107BJ104KA R1, R2 2 1kΩ ±5% resistors (0603) OUT 1 SMA connector (PC edge mount) EFJohnson 142-0701-801 JU1 4 3-pin headers U1 1 MAX2750EUA, MAX2751EUA, or MAX2752EUA Test Equipment Required This section lists the recommended test equipment to verify operation of the MAX2750/MAX2751/MAX2752. It is intended as a guide only, and some substitutions are possible. • A two-channel power supply at +2.7V to +5.5V • An ammeter (optional) • An RF spectrum analyzer (HP 8561E, for example) that covers the operating frequency range of the MAX2750/MAX2751/MAX2752, as well as a few harmonics • A 50Ω SMA cable Component Suppliers SUPPLIER PHONE FAX Murata Electronics 800-831-9172 814-238-0490 Connections and Setup Taiyo Yuden 408-573-4150 408-573-4159 This section provides a step-by-step guide to the functions and operation of these EV kits. NOTE: Please indicate that you are using the MAX2750, MAX2751, or MAX2752 when contacting these component suppliers. Quick Start The MAX2750/MAX2751/MAX2752 EV kits are fully assembled and factory tested. Follow the instructions in the Connections and Setup section for proper device evaluation. 1) Connect a DC supply set to +3V (through an ammeter, if desired) to the VCC and GND terminals on the EV kit. 2) Apply +3V to the SHDN control input. 3) Turn on the DC supply. The supply current should read about 10mA. 4) Connect the VCO output to a spectrum analyzer with a 50Ω coaxial cable (minimize length). 5) Apply a variable DC voltage to the TUNE input (+0.4V to +2.4V). 6) Check fMIN and fMAX on the spectrum analyzer by varying the tuning voltage. 7) Check the output power level (-3dBm typ). ________________________________________________________________ Maxim Integrated Products 1 For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Evaluates: MAX2750/MAX2751/MAX2752 General Description The MAX2750/MAX2751/MAX2752 evaluation kits (EV kits) simplify evaluation of the MAX2750/MAX2751/ MAX2752 VCOs. These kits enable testing of the devices’ RF performance and require no additional support circuitry. The signal output uses an SMA connector to facilitate the connection to RF test equipment. Evaluates: MAX2750/MAX2751/MAX2752 MAX2750/MAX2751/MAX2752 Evaluation Kits 1 8 GND N.C. C1 0.1µF R1 1k 2 TUNE TUNE C2 220pF 3 GND 7 U1 MAX2750 MAX2751 MAX2752 VCC 1 C5 OPEN 6 VCC C4 220pF 2 SHDN R2 1k 4 VCC SHDN 3 SMA OUT OUT JU1 C8 220pF 5 VCC C7 0.1µF C3 220pF Figure 1. MAX2750/MAX2751/MAX2752 EV Kits Schematic 1.0" 1.0" Figure 3. MAX2750/MAX2751/MAX2752 EV Kits PC Board Layout—Component Side Figure 2. MAX2750/MAX2751/MAX2752 EV Kits Component Placement Guide—Component Side 1.0" Figure 4. MAX2750/MAX2751/MAX2752 EV Kits 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. 2 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.