19-2573; Rev 0; 8/02 MAX2150 Evaluation Kit Features ♦ ♦ ♦ ♦ ♦ ♦ 3-Wire Control Interface Differential Baseband Inputs 2.7V to 3.6V Single-Supply Operation 50Ω Connectors on All Signal Ports Low-Power Shutdown Modes PC Control Software (Available at www.maxim-ic.com) Ordering Information PART MAX2150EVKIT TEMP RANGE -40°C to +85°C IC PACKAGE 28 QFN Component Suppliers SUPPLIERS AVX Coilcraft Murata 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 QTY BUFEN 1 DESCRIPTION 3-pin header, 100mil centers Digi-Key S1012-36-ND C1, C2, C3, C12, C18, C28, C30, C31, C34, C36, C37, C50, C52 13 C4, C9, C10, C11, C13, C35 6 100pF ±5% capacitors (0402) Murata GRP1555C1H101J C5, C6, C7, C15, C16 5 Open C8 1 22pF ±5% capacitor (0402) Murata GRP1555C1H220J C14, C17 2 100pF ±5% capacitors (0603) Murata GRM1885C1H101J C19, C20, C21, C32, C33 5 0.1µF ±10% capacitors (0402) Murata GRP155R61A104K C22 1 6800pF ±10% capacitor (0402) Murata GRP155R71E682K C23 C24 0.1µF ±10% capacitors (0603) Murata GRM188R71C104K 1 0.068µF ±10% capacitor (0402) Murata GRP155R61A683K 1 680pF ±10% capacitor (0402) Murata GRP155R71H681K DESIGNATION QTY DESCRIPTION C25 1 1µF ±10% tantalum capacitor, case A AVX TAJA105K016 C26 1 470pF ±10% capacitor (0402) Murata GRP155R71H471K C27 1 1.0µF ±10% capacitor (0603) Murata GRM188R60J105K DCIN, EN 2 Test points Digi-Key 5000-ND J1, J3 2 50Ω BNC connectors, 31 series, Amphenol Allied Electronics 31-5329-52RFX 713-9041 J5, J6, J7, J11, J16, J17, J19, J20, VCCSD 9 2-pin headers, 100mil centers Digi-Key S1012-36-ND J8, J13, J14, J15, J18 (Note 2) 5 SMA connectors, edge mount EFJohnson 142-0701-801 J10 1 10-pin header Digi-Key S2012-36-ND J19, J20, BUFEN, VCCSD 4 Shunt-shorting jumpers Digi-Key S9000-ND ________________________________________________________________ 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: MAX2150 General Description The MAX2150 evaluation kit (EV kit) simplifies testing of the MAX2150 complete wideband I/Q modulator chip. The kit allows evaluation of the I/Q modulator, synthesizer, 3-wire programming interface, and powermanagement features. The EV kit provides 50Ω connectors for all signal inputs and outputs. Evaluates: MAX2150 MAX2150 Evaluation Kit Component List (continued) DESIGNATION QTY L1 1 Open DESCRIPTION R1–R4, R29, R35 6 Open Test Equipment Required R12 1 0Ω ±5% resistor (0402) R13, R18 2 0Ω ±5% resistors (0603) R23 1 245Ω ±5% resistor (0402) R24, R25 2 1.1kΩ ±1% resistors (0402) R31–R34 4 3.3kΩ ±5% resistors (0603) U1 (Note 1) 1 MAX2150EGI I/Q wideband modulator U2 1 VCO Fujitsu VC-3R0A23-0967/1750B VTUNE_OUT 1 SMA connectors, PC mount EFJohnson 142-0701-201 1 20MHz surface-mount crystal CTS Reeves Digi-Key ATS200SM CTX515TR-ND Y1 Quick Start The MAX2150 EV kit is fully assembled and factory tested. Follow the instructions in the Connections and Setup section. None 1 MAX2150 EV kit circuit board, rev C None 1 MAX2150 data sheet None 1 MAX2150 EV kit data sheet Note 1: This IC has an exposed pad. It must be solder attached to the circuit board to ensure proper function. Note 2: Cut center pin to approximately 1/16in long. This section lists the recommended test equipment to verify the operation of the MAX2150. It is intended as a guide only, and substitutions are possible. • One RF signal generator capable of delivering -7dBm of output power in the 10MHz to 50MHz frequency range (HP 8648A or equivalent) for the PLL reference frequency • RF spectrum analyzer capable of measuring up to 7GHz RF signal (Rohde & Schwarz FSEA20 or equivalent) • RF power meter capable of measuring up to +10dBm output power (HP 437B or equivalent) with an RF sensor • RF network analyzer • Oscilloscope • Two power supplies that can provide 250mA at +5.0V (AG E3631A or equivalent) • Arbitrary waveform generator (HP E4433B or equivalent) Connections and Setup This section provides step-by-step instructions for getting the EV kit up and running in all operation modes. 1) Verify that jumpers are in place. 2) Verify that the interface board is in place. Connector Description CONNECTOR J1, J3 J5, J19 J6 J7, J11 J8 J10 J13 J14, J15 J16, J17 J18 J20 — — — — — 2 NAME I, Q VCCVCO VCC GND RFOUT — BUFOUT LO N.C. REFL IN LOCK BUFEN DCIN EN TUNE_OUT VCCSD DESCRIPTION I/Q Baseband Input BNC Connectors VCC to On-Board VCO Supply Voltage Ground RF Output (SMA) Interface Connection Buffer Output (SMA) External LO Input (SMA) No Connection Reference Input (SMA) Lock Signal Output Buffer Enable Bias Voltage Input Enable Pin Input Tuning Voltage Output VCC to Sigma-Delta Modulator DC VOLTAGE RANGE — 2.7V ~ 3.6V 2.7V ~ 3.6V — — 2.7V ~ 3.6V — — — — — — 1.6V — — 2.7V ~ 3.6V _______________________________________________________________________________________ MAX2150 Evaluation Kit 4) Set the adjustable power supply to +1.6V and turn it off. Operation Modes: 1) TX mode 5) Connect the ground terminal to GND. 2) SYNTH mode 6) Connect the positive +3V terminal to VCC and the power supply of the interface board. 3) MOD mode 7) Connect the positive terminal of the adjustable power supply to pin DCIN on the board. 5) Hardware shutdown mode 8) Set the I/Q generator to 330kHz, with an input level of 1VP-P. Leave the I/Q generator output off. 9) Using 2 BNC cables, connect the output of the I/Q generator to the I/Q input connectors on the MAX2150 EV kit board. 10) Use an SMA cable to connect the RFOUT to the input of the spectrum analyzer. 11) Set the spectrum analyzer to view the output. 12) Turn on all power supplies and enable I/Q signal generator. 4) Software shutdown mode Refer to the MAX2150 data sheet for details. 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 MAX2150. Keep 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 MAX2150 data sheet for more information. 13) Measure the supply current level. 14) Observe the RF output frequency as displayed on the spectrum analyzer. Measure the RF output power. 15) The RF output power should be approximately -4dBm after accounting for cable and connector loss. _______________________________________________________________________________________ 3 Evaluates: MAX2150 Adjustments and Control 3) Set the power supply to +3V and turn it off. Evaluates: MAX2150 MAX2150 Evaluation Kit J1 31-5239-52RFX J3 31-5239-52RFX I Q C50 0.1µF R31 3.3kΩ VCC C52 0.1µF R1 OPEN R32 3.3kΩ R29 OPEN R2 OPEN VCC R33 3.3kΩ DCIN C28 0.1µF BUFEN R4 OPEN R3 OPEN C1 0.1µF R34 3.3kΩ VCC J6 C3 0.1µF VCC C25 1µF J7 R12 0Ω C2 0.1µF VCC 28 VCC_RF GND 1 27 I+ 26 I- 25 Q+ 24 Q- 23 BUFEN C5 OPEN 22 BUFOUT LO+ TXEN C33 0.1µF R13 0Ω J8 C15 OPEN VCC_PA LO- J15 LO C8 22pF C12 0.1µF VCC 3 LO 20 C18 0.1µF RFOUT VCC_LO J14 C32 0.1µF C7 OPEN C17 100pF RFOUT C6 OPEN 21 VCC 2 J13 BUFOUT C31 0.1µF C20 0.1µF U1 J16 4 TEST2 C4 100pF VCC VCC_D MAX2150 2 18 3 C10 100pF VCC J17 LOCK J20 5 VCC_A TEST1 U2 VC34DA230967/ 1750B350FUJI 7 6 GND VSW 19 1 C16 OPEN VT GND 5 GND 4 VCC GND OUT 8 17 C11 100pF VCC J19 6 CHP LOCK 16 C35 100pF C22 6800pF VCC VCC VCCSD 7 C27 1.0µF VCC_CHP VCC_SD C14 100pF CLK DATA 8 9 EN 10 STNEN OSCIN 12 13 R18 0Ω J10–11 J10–13 J10–15 J10–17 J10–19 J10–12 J10–14 J10–16 J10–18 J10–20 VCOSEL J10–9 J10–10 SYNEN J10–7 J10–8 TXEN J10–5 J10–6 FILTVCC J10–3 J10–4 DATA C21 0.1µF C13 100pF J10–1 EN C19 0.1µF 14 R24 1.1kΩ R23 245Ω J10–2 CLK C36 0.1µF C30 0.1µF C23 0.068µF R25 1.1kΩ C24 680pF C26 470pF VTUNE_OUT TUNEOUT Y1 J18 REFL Figure 1. MAX2150 EV Kit Schematic 4 VCCVCO J11 GND VCC L1 OPEN J5 15 VCC_XTAL C37 0.1µF LOCK C9 100pF SHDN EN JUMP_PAD SHDN 11 C34 0.1µF _______________________________________________________________________________________ R35 OPEN MAX2150 Evaluation Kit Evaluates: MAX2150 1.0" Figure 2. MAX2150 EV Kit Primary-Side Silkscreen _______________________________________________________________________________________ 5 Evaluates: MAX2150 MAX2150 Evaluation Kit 1.0" Figure 3. MAX2150 EV Kit Secondary-Side Silkscreen 6 _______________________________________________________________________________________ MAX2150 Evaluation Kit Evaluates: MAX2150 1.0" 1.0" Figure 4. MAX2150 EV Kit PC Board Layout—Layer 2 Figure 5. MAX2150 EV Kit PC Board Layout—Layer 3 1.0" 1.0" Figure 6. MAX2150 EV Kit Primary Component Side Figure 7. MAX2150 EV Kit Secondary 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 _____________________ 7 © 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.