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| 19-2108; Rev 0; 7/01 MAX2383 Evaluation Kit General Description The MAX2383 evaluation kit (EV kit) simplifies the evaluation of the MAX2383. It includes an LO balun for interfacing with differential LO ports. Similarly, an IF balun is used for interfacing with differential IF ports. SMA connectors are included to facilitate easy connections. Features o Baluns are Included for Single-Ended LO and IF Drives o All Inputs and Outputs are Matched to 50 Systems o SMA Connectors for Easy Connections Evaluates: MAX2383 Ordering Information PART MAX2383EVKIT TEMP. RANGE -40C to +85C IC PACKAGE 3 x 4 UCSP Component Suppliers SUPPLIERS AVX CoilCraft Murata Electronics Taiyo Yuden Toko PHONE 843-448-9411 800-322-2645 770-436-1300 800-368-2496 847-297-0070 FAX 843-448-7139 847-639-1469 770-436-3030 408-573-4159 847-699-7864 WEBSITE www.avxcorp.com www.coilcraft.com www.murata.com www.t-yuden.com www.tokoam.com Component List DESIGNATION C1, C2 QTY 2 DESCRIPTION 22pF 5%, 50V ceramic capacitors (0402) Murata GRM36C0G220J050 330pF 10%, 50V ceramic capacitors (0402) Murata GRM36X7R331K050 100pF 5%, 50V ceramic capacitors (0402) Murata GRM36C0G101J050 10F 20%, 10V tantalum capacitor (B case) AVX TAJB106M010R 6800pF 10%, 10V ceramic capacitor (0402) Murata GRM36X7R682K025 2.2pF 0.1pF, 50V ceramic capacitor (0402) Murata GRM36C0G2R2B050 DESIGNATION C13, C15, C18, C19 C16 QTY 0 DESCRIPTION Not installed 2.0pF 0.1pF, 50V ceramic capacitor (0402) Murata GRM36C0G020B050 150pF 5%, 50V ceramic capacitor (0402) Murata GRM36C0G151J050 3.3nH 0.3nH inductor (0402) Murata LQG10A3N3S00T1 100nH 5% inductor (0603) Coilcraft 0603CS-R10XJBC 1.0nH inductors (0402) Toko LL1005-FH-1N0S 4.7nH 0.3nH inductor (0402) Murata LQG10A4N7S00T1 12nH 5% inductor (0402) Murata LQG10A12NJ00T1 1 C3, C4, C8, C11, C12, C14 6 C17 1 C5, C6 2 L1 L2 L3, L4 L5 L6 1 1 2 1 1 C7 1 C9 1 C10 1 ________________________________________________________________ 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. MAX2383 Evaluation Kit Evaluates: MAX2383 Component List (continued) DESIGNATION L7 R1, R2 R3 R4, R5 R6 R7, R8 T1 T2 TL1 LOIN, LFIN, DROUT DRIN, RFOUT JU1, JU2 None VCC, GND, GC, LO_EN, SHDN U1 None None None QTY 1 2 0 2 1 2 1 1 1 DESCRIPTION 3.3nH inductor (0402) Toko LL1005-FH-3N3S 10k 1% resistors (0402) Not installed 24 1% resistors (0402) 390 1% resistor (0402) 2.4 1% resistors (0402) Balun transformer (B4F type) Toko 617DB-1018 Balun transformer Murata LDB15C201A2400 50 coaxial cable (0.047in diameter) SMA connectors (PC edge-mount) EF Johnson 142-0701-801 DIGIKEY J502-ND Not installed 3-pin headers Digi-Key S1012-36-ND or Equivalent Shunts for JU1-JU12 Test points Mouser 151-203 or Equivalent MAX2383EBC (12 UCSP) MAX2383 PC board MAX2383 data sheet MAX2383 EV kit data sheet Connections and Setup 1) Set the power supply to +2.85V and turn it off. 2) Set the adjustable power supply to +2.0V and turn it off. 3) Connect the ground terminal to GND. 4) Connect the positive +2.85V terminal to VCC, LO_EN, and SHDN two-pin headers. 5) Connect the positive terminal of the adjustable power supply to GC. 6) Set the IF generator to 380MHz and set the power level to -11.5dBm at the board IF input. Set the modulation to WCDMA mode. The IF balun loss and the board loss, including the 3dB resistive matching loss due to the on-board 390 shunt resistor, account for about 4.5dB, so the IF power delivered to the device's differential LO port is approximately -16dBm. Keep the RF generator output off. 7) Set the LO generator to 2330MHz and set the power level to -8dBm. The board loss and the LO balun loss account for about 2dB, so the LO power delivered to the device's differential LO port is approximately -10dBm. Keep the RF generator output off. 8) Using an SMA cable, connect the output of the IF generator to the LFIN on the MAX2383 EV kit. 9) Using an SMA cable, connect the output of the LO generator to the LOIN on the MAX2383 EV kit. 10) Using an SMA cable, connect the DROUT to the input of the spectrum analyzer. 11) Set the spectrum analyzer to view the output (ACPR marker, center frequency, etc.). 12) Turn on all power supplies and enable both signal generators. 13) Observe the RF output frequency as displayed on the spectrum analyzer. Measure the RF output power. 3 0 2 2 5 1 1 1 1 Quick Start Test Equipment Required * A +3V power supply capable of supplying 50mA. * An adjustable power supply for gain control. * An RF signal generator for LO covering the frequency range of 2270MHz to 2580MHz and output power range of -15dBm to 0. * Another RF signal generator for IF with WCDMA modulation, covering the frequency range of 200MHz to 600MHz, and output power range of -35dBm to -5dBm. * A spectrum analyzer with ACPR markers and covering the frequency range 1900MHz to 2000MHz. 2 Layout Issues A good PC board is an essential part of an RF circuit design. The EV kit PC board can serve as a guide for laying out a board using the MAX2383. Keep the traces carrying RF signals as short as possible to minimize radiation and insertion loss. Use impedance control on all RF signal traces. The VCC node on the PC board should have decoupling capacitors to the closest ground. Refer to the Layout section of the MAX2383 data sheet for more information. _______________________________________________________________________________________ Figure 1. MAX2383EV Kit Schematic LO_EN C3 330pF R4 24 C15 OPEN A1 70 R3 OPEN DRIN 70 B1 LO-/SHDN GND C3 VCC C13 OPEN 50 A4 C18 OPEN C2 22pF R2 10k SHDN 70 RFOUT 1 SMA 2 L7 3.3nH C16 2.0pF L5 4.7nH B4 70 C17 150pF L1 3.3nH LO+/LO_EN C19 OPEN 50 GND C4 4 6 3 R5 24 C1 22pF R1 10k N.C. DRIN 1 SMA 2 LOIN 50 1 1 SMA 2 UNBAL BALANCE 2 GND 5 GND BALANCE T2 LDB15C201A2400 RFOUT U1 C4 330pF C5 100pF MAX2383 C1 IFINL6 12nH 6 2 3 C2 IFIN+ C12 330pF C6 100pF R8 2.4 GC B3 70 R7 2.4 L2 100nH R6 390 T1 BALUN TOKOB4F 1 C14 330pF GC SMA LFIN 1 4 2 VCC 70 VCC DROUT A3 C7 10F C9 6800pF C8 330pF A2 50 C10 2.2pF 70 L3 1nH L4 1nH 50 DROUT 1 2 SMA GND Evaluates: MAX2383 _______________________________________________________________________________________ C11 330pF MAX2383 Evaluation Kit 3 MAX2383 Evaluation Kit Evaluates: MAX2383 1.0" 1.0" Figure 2. MAX2383 EV Kit PC Board--Top Silkscreen Figure 3. MAX2383 EV Kit PC Board Layout--Component Side 1.0" Figure 4. MAX2383 EV Kit PC Board Layout--GND Plane 2 4 _______________________________________________________________________________________ MAX2383 Evaluation Kit Evaluates: MAX2383 1.0" 1.0" Figure 5. MAX2383 EV Kit PC Board Layout--GND Plane 3 Figure 6. MAX2383 EV Kit PC Board Layout--Back 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 _____________________ 5 (c) 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. |
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