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| 19-0779; Rev 0; 3/07 MAX2204 Evaluation Kit General Description The MAX2204 evaluation kit (EV kit) simplifies evaluation of the MAX2204 RF power detector. The EV kit enables testing of all functions with no additional support circuitry. The RF power-detector input uses a 50 SMA connector on the evaluation board for convenient connection to test equipment. o 50 SMA RF Input Port Connector o Fully Assembled and Tested Features o +2.7V to +3.3V Single-Supply Operation Evaluates: MAX2204 Ordering Information PART MAX2204EVKIT+ TEMP RANGE -40C to +85C IC PACKAGE 5 SC70 +Denotes a lead-free and RoHS-compliant EV kit. Component List DESIGNATION C1 C2 C3 C4 J1, J2 QTY 1 1 1 1 2 DESCRIPTION 220pF 10% capacitor (0402) Murata GRM155R71H221K 27pF 5% capacitor (0402) Murata GRM155R71H270J 22F 10% capacitor (1206) Murata GRM31CR60J226K 2200pF 10% capacitor (0402) Murata GRM155R71H222K Inline headers Sullins PEC36SAAN SMA end-launch jack receptacle, 0.062in Johnson 142-0701-801 2-pin jumper block, single Digi-Key S1012-36-ND Test point, PC mini, red Keystone 5000 50 5% resistor (0402) 0 5% resistor (0402) MAX2204EXK+ RF Power Detector PCB: MAX2204 Evaluation Kit+ Quick Start Test Equipment Required This section lists the recommended test equipment to verify operation of the MAX2204. It is intended as a guide only, and some substitutions are possible: * One RF signal generator capable of delivering at least +5dBm of output power at the operating frequency (HPE4433B or equivalent) * One RF power sensor capable of handling at least +10dBm of output power at the operating frequency (HP 8482A or equivalent) One RF power meter capable of measuring up to +10dBm of output power at the operating frequency (HP 437B or equivalent) An RF spectrum analyzer that covers the MAX2204 operating frequency range (e.g., FSEB20) A power supply capable of up to 10mA at +2.7V to +3.3V A digital multimeter (DMM) for measuring output voltage, supply current, and output current 50 SMA cables A network analyzer (e.g., HP 8753D) to measure input impedance (optional) * J4 1 * * * * * JP1 JP3 R1 R2 U1 -- 1 1 1 1 1 1 Component Suppliers SUPPLIER Johnson Components Murata Mfg. Co., Ltd. PHONE 507-833-8822 770-436-1300 WEBSITE www.johnsoncomponents.com www.murata.com Note: Indicate that you are using the MAX2204 when contacting these component suppliers. ________________________________________________________________ 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. MAX2204 Evaluation Kit Evaluates: MAX2204 Connections and Setup This section provides a step-by-step guide to operating the EV kit and testing the device's function. Caution: Do not turn on the DC power or RF signal generators until all connections are made: 1) Set the jumper (JP1) on the EV kit to ON. This enables the device. 2) Connect a DC supply set to +2.85V (through a DMM, if desired) to the VCC and GND terminals on the EV kit. If available, set the current limit to 10mA. Do not turn on the supply. 3) Connect the output (J3) to a DMM to measure output voltage. 4) Set the signal generator output to +5dBm, f = 836MHz. Using the power meter, determine the actual output power of the signal generator. 5) Connect the signal generator to the SMA connector. Do not turn on the signal generator. 6) Turn on the DC supply; the supply current should read approximately 1.3mA. 7) Activate the signal generator. The output voltage should read approximately 2V. Layout Issues The MAX2204 is not particularly sensitive to the layout, since it only needs 5dBm for maximum output voltage. However, there are two areas that need attention: the GND pin and the supply bypassing. Connect the GND pin to PCB ground with a GND via as close as possible, and place the supply bypassing capacitor close to the part. C2 27pF VCC J1 VCC 1 2 R2 0 OUT JP3 C4 2200pF 4 VCC 1 2 JP1 3 VCC OUT GND U1 MAX2204 5 J2 C3 22F J4 C1 220pF 3 R1 50 ENA RFIN Figure 1. MAX2204 EV Kit Schematic 2 _______________________________________________________________________________________ MAX2204 Evaluation Kit Evaluates: MAX2204 1.0" 1.0" Figure 2. MAX2204 EV Kit Component Placement Guide--Top Silkscreen Figure 3. MAX2204 EV Kit Component Placement Guide-- Component Side 1.0" Figure 4. MAX2204 EV Kit Component Placement Guide-- Secondary/Bottom Component 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 3 (c) 2007 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc. Janet Freed |
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