19-2108; Rev 0; 7/01 MAX2383 Evaluation Kit Features ♦ Baluns are Included for Single-Ended LO and IF Drives ♦ All Inputs and Outputs are Matched to 50Ω Systems ♦ SMA Connectors for Easy Connections Ordering Information PART MAX2383EVKIT TEMP. RANGE IC PACKAGE -40°C to +85°C 3 x 4 UCSP Component Suppliers SUPPLIERS AVX PHONE FAX WEBSITE 843-448-9411 843-448-7139 www.avxcorp.com www.coilcraft.com CoilCraft 800-322-2645 847-639-1469 Murata Electronics 770-436-1300 770-436-3030 www.murata.com Taiyo Yuden 800-368-2496 408-573-4159 www.t-yuden.com Toko 847-297-0070 847-699-7864 www.tokoam.com Component List DESIGNATION C1, C2 C3, C4, C8, C11, C12, C14 C5, C6 C7 C9 C10 QTY 2 6 2 DESIGNATION QTY 22pF ±5%, 50V ceramic capacitors (0402) Murata GRM36C0G220J050 C13, C15, C18, C19 0 Not installed 330pF ±10%, 50V ceramic capacitors (0402) Murata GRM36X7R331K050 C16 1 2.0pF ±0.1pF, 50V ceramic capacitor (0402) Murata GRM36C0G020B050 100pF ±5%, 50V ceramic capacitors (0402) Murata GRM36C0G101J050 C17 1 150pF ±5%, 50V ceramic capacitor (0402) Murata GRM36C0G151J050 L1 1 3.3nH ±0.3nH inductor (0402) Murata LQG10A3N3S00T1 L2 1 100nH ±5% inductor (0603) Coilcraft 0603CS-R10XJBC L3, L4 2 1.0nH inductors (0402) Toko LL1005-FH-1N0S L5 1 4.7nH ±0.3nH inductor (0402) Murata LQG10A4N7S00T1 L6 1 12nH ±5% inductor (0402) Murata LQG10A12NJ00T1 DESCRIPTION 1 10µF ±20%, 10V tantalum capacitor (B case) AVX TAJB106M010R 1 6800pF ±10%, 10V ceramic capacitor (0402) Murata GRM36X7R682K025 1 2.2pF ±0.1pF, 50V ceramic capacitor (0402) Murata GRM36C0G2R2B050 DESCRIPTION ________________________________________________________________ Maxim Integrated Products 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. 1 Evaluates: MAX2383 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. Evaluates: MAX2383 MAX2383 Evaluation Kit Component List (continued) DESIGNATION QTY DESCRIPTION L7 1 3.3nH inductor (0402) Toko LL1005-FH-3N3S R1, R2 2 10kΩ ±1% resistors (0402) R3 0 Not installed R4, R5 2 24Ω ±1% resistors (0402) R6 1 390Ω ±1% resistor (0402) R7, R8 2 2.4Ω ±1% resistors (0402) T1 1 Balun transformer (B4F type) Toko 617DB-1018 T2 1 Balun transformer Murata LDB15C201A2400 TL1 1 50Ω coaxial cable (0.047in diameter) LOIN, LFIN, DROUT 3 DRIN, RFOUT 0 JU1, JU2 2 None 2 VCC, GND, GC, LO_EN, SHDN 5 Test points Mouser 151-203 or Equivalent 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 U1 1 MAX2383EBC (12 UCSP) None 1 MAX2383 PC board None 1 MAX2383 data sheet None 1 MAX2383 EV kit data sheet 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. 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 390Ω 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. 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. • A spectrum analyzer with ACPR markers and covering the frequency range 1900MHz to 2000MHz. 2 _______________________________________________________________________________________ _______________________________________________________________________________________ SMA 2 2 LFIN 1 SMA LOIN 5 2 1 4 6 50Ω 1 50Ω BALANCE N.C. BALANCE 3 2 1 GND VCC T1 BALUN TOKOB4F T2 LDB15C201A2400 GND GND UNBAL 3 6 4 C6 100pF C5 100pF C7 10µF R5 24Ω R4 24Ω R6 390Ω C9 6800pF C1 22pF C8 330pF C2 22pF L1 3.3nH 70Ω R8 2.4Ω R7 2.4Ω SHDN C18 OPEN R3 OPEN C15 OPEN C1 B1 A1 A2 C2 L2 100nH C4 330pF R2 10kΩ 70Ω 70Ω R1 10kΩ C3 330pF VCC IFIN+ IFIN- U1 MAX2383 LO-/SHDN LO+/LO_EN DROUT GC RFOUT GND DRIN GND A3 B3 C3 A4 B4 C4 L3 1nH C12 330pF L7 3.3nH 70Ω C16 2.0pF L4 1nH 70Ω L6 12nH C13 OPEN 50Ω C14 330pF C11 330pF C10 2.2pF GC VCC 50Ω L5 4.7nH 70Ω 2 DROUT 1 2 RFOUT 1 70Ω SMA SMA C17 150pF C19 OPEN 50Ω 2 DRIN 1 SMA Evaluates: MAX2383 LO_EN MAX2383 Evaluation Kit Figure 1. MAX2383EV Kit Schematic 3 Evaluates: MAX2383 MAX2383 Evaluation Kit 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 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 © 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. Evaluates: MAX2383 1.0" 1.0"