Evaluates: MAX2754 19-2102 Rev 0 7/01XX-XXXX Rev 0 10/94 MAX2754 Evaluation Kit General Description Features The MAX2754 evaluation kit (EV kit) simplifies evalua- Easy Evaluation of MAX2754 tion of the MAX2754 VCO. This kit enables testing of the +2.7V to +5.5V Single-Supply Operation devices RF performance and requires no additional support circuitry. The signal output uses an SMA con- RF Output Matched to 50 nector to facilitate the connection to RF test equipment. All Critical Peripheral Components Included Component List Ordering Information PART TEMP. RANGE IC PACKAGE DESIGNATION QTY DESCRIPTION MAX2754EVKIT -40C to +85C 8 MAX 0.33F 10% ceramic C1 1 capacitor (0603) Murata GRM36 334K016 Test Equipment Required 1000pF 10% ceramic This section lists the recommended test equipment to C2, C4 2 capacitors (0402) verify operation of the MAX2754. It is intended as a Murata GRM36X7R102K050 guide only, and some substitutions are possible. C3, C5 0 Not installed Three power supplies at +2.7V to +5.5V 330pF 10% ceramic An ammeter (optional) C6 1 capacitor (0402) An RF spectrum analyzer (HP 8561E, for example) Murata GRM36X7R331K050 that covers the operating frequency range of the MAX2754, as well as a few harmonics 0.1F 10% ceramic C7 1 capacitor (0603) A 50 SMA cable Murata GRM39X7R104K016 Connections and Setup R1, R2 2 1k 5% resistors (0402) This section provides a step-by-step guide to the func- R4 1 0 5% resistor (0402) tions and operation of these EV kits. S M A connectors ( ed g e- m ount) 1) Connect a DC supply set to +3V (through an amme- MOD, OUT 2 EFJohnson 142-0701-801 ter, if desired) to the V and GND terminals on the CC Digi-Key J502-ND EV kit. GND, SHDN, TUNE, Test poi nts, 1- p i n header 2) Apply +3V to the SHDN control input. 4 V M ouser 15 1-203 or eq ui val ent CC 3) Turn on the DC supply. The supply current should Jumper, SIP3, 3-pin header read about 13.5mA. Digi-Key S9000-ND or JU1 1 4) Connect the VCO output to a spectrum analyzer equivalent with a 50 coaxial cable (minimize length). 5) Apply a variable DC voltage to the TUNE input Component Suppliers (+0.4V to +2.4V). SUPPLIER PHONE FAX 6) Check f and f on the spectrum analyzer by MIN MAX varying the tuning voltage. Murata Electronics 800-831-9172 814-238-0490 Taiyo Yuden 408-573-4150 408-573-4159 7) Apply a variable DC voltage to the MOD input (+0.4V to +2.4V). Note: Please indicate that you are using the MAX2754 when contacting these component suppliers. 8) Check modulation peak frequency deviation on the spectrum analyzer by varying the modulation volt- Quick Start age. The MAX2754 EV kit is fully assembled and factory test- 9) Check the output power level (-5dBm typ). ed. Follow the instructions in the Connections and Setup section for proper device evaluation. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.MAX2754 Evaluation Kit V CC C1 0.33 F 8 1 V V CC V REG CC C7 C6 0.1 F 330pF GND R1 TUNE 1k 50 2 7 OUT U1 TUNE OUT SMA C5 C2 OPEN 1000pF SLIDING CAP. MAX2754 3 6 V CC GND1 GND2 MOD R4 R2 SMA 1 SHDN 0 1k 4 5 MOD SHDN JU1 2 C4 C3 3 OPEN 1000pF Figure 1. MAX2754 EV Kit Schematic 1.0 1.0 Figure 2. MAX2754 EV Kit Component Placement GuideTop Figure 3. MAX2754 EV Kit PC Board LayoutComponent Side Silkscreen 1.0 Figure 4. MAX2754 EV Kit PC Board LayoutGround Plane 2 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 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. Evaluate: MAX2754