MAX2140EVKIT

Evaluates: MAX2140 MAX2140 Evaluation Kit General Description The MAX2140 evaluation kit (EV kit) simplifies evaluation of the MAX2140 complete SDARS receiver IC. It enables testing of the device’s RF performance and requires no additional support circuitry. The EV kit’s signal inputs and outputs use SMA connectors to facilitate the connection of RF test equipment. Features ●● Easy Evaluation of the MAX2140 ●● +3.1V to +3.6V Single-Supply Operation ●● Jumpers for Digital Power Control and Shutdown ●● All Critical Peripheral Components Included ●● PC Control Software Included Ordering Information PART TYPE MAX2140EVKIT EV Kit #Denotes RoHS compliant. Component List DESIGNATION QTY DESCRIPTION 3 2-pin headers Digi-Key 1 x 2 header S1012-36-ND C28, C29 2 ADR1, ADR2, JU1, VCC 4 Jumper blocks using 3-pin SIP headers Digi-Key 1 x 3 header S1012-36-ND C30 1 C47, C50 2 C1, C2, C7, C27 4 Open C3, C4 2 6.8pF ±0.25pF 0402 capacitors Murata GRP1555C1H6R8C C56, C57 2 C5, C6 2 47pF ±5% 0603 capacitors Murata GRM1885C1H470J C59 1 2 2 10µF tantalum capacitors AVX TAJR106K006 C60, C61 C8, C10 C62 1 C9, C11, C12, C14–C18, C32, C40, C41, C53, C76, C83, C84 15 0.1µF ±10% 0603 capacitors Murata GRM188R71C104K C63, C69, C79, C81, C82 5 C73 1 C13, C19 2 Open, capacitors C20, C23, C26, C31, C52 5 100pF ±5% 0603 capacitors Murata GRM1885C1H101J C75 1 C21, C22, C42 3 Open, capacitors 2 C24 1 1000pF ±10% 0603 capacitor Taiyo Yuden UMK107B102KZ-B I, Q 50Ω BNC PC board receptacles (jacks) Amphenol 31-5239-52RFX J1 1 DB25 M PC board CONN HD-20 SERIES 747238-4 +5V, -5V, GND C25, C33–C35, C37, C38, C43, C45, C46, C48, C49, C51 19-3136; Rev 1; 11/14 12 0.01µF ±10% 0603 capacitors Taiyo Yuden UMK107B103KZ-B DESIGNATION QTY DESCRIPTION 3.9pF ±0.25pF 0603 capacitors Murata GRM1885C1H3R9C 0.22µF ±10% 0603 capacitor Murata 2.2µF ±10% 0603 capacitors Murata 3.9pF ±0.25pF 0603 capacitors Murata GRM1885C1H6R8D 100pF ±5% 0603 capacitor Murata GRM1885C1H101J 47pF ±5% 0402 capacitors Murata GRP1555C1H470J 22pF ±1pF 0603 capacitor Murata 330pF ±5% 0603 capacitors Murata GRM1885C1H331J 0.01µF ±10% 0805 capacitor Taiyo Yuden UMK212B103KQ-B 1.0µF ±20% 1206 capacitor Murata GRM31MR71C105MA01L MAX2140 Evaluation Kit Evaluates: MAX2140 Component List (continued) DESIGNATION QTY JRFIN, PWM, REFIN, REF_TEST, SAWIN, SAWOUT L1 6 DESCRIPTION SMA end launch jack receptacles 0.062in Johnson 142-0701-801 DESIGNATION QTY DESCRIPTION R30, R31, R40, R41 4 5.1kΩ 0603 resistors TCL, TDA, TGND 3 Jumper blocks, 2-pin 0.1in spacing Digi-Key 5000K-ND U1 1 Maxim MAX2140ETH U2, U3 2 Differential to single-ended line receivers Maxim MAX4444ESE U4 1 259.861MHz saw filter RF Monolithics, Inc. SF2025B 1 Open L4, L7, L9, L10 4 56nH ±5% 0603 inductors Murata LQW18AN56NJ00D L5, L6 2 68nH ±5% 0603 inductors Murata LQG18HN68NJ00 L8 1 33nH ±5% 0603 inductor Murata LQW18AN33NJ00D L11 1 22nH ±5% inductor 0603CS-22NXJBC U5 1 Low-dropout linear regulator Maxim MAX8877EUK28 U6 1 1 33nH, 25 0402 inductor Murata LQP15MN33NG00 Buffer/line driver Texas Instruments SN74LVTH244ADBR L13 1 Open U7 1 LOCK, RFAGC, VINANT, VOUTANT 4 Jumper blocks, 2-pin two 0.1in spacing 1 x 2 headers Digi-Key S1012-36-nd 2338.755MHz multilayer chip bandpass filter TOKO LTF3216BU-F2R3B U8 1 Closed-loop buffer Maxim MAX4178EUK-T R1 1 0Ω 0603 resistor R4, R12, R15, R20 Y2 1 4 51.1Ω 0603 resistors 23.92MHz crystal Epson Q24FA23H0000701 — 1 PCB: MAX2140 EVALUATION KIT R8, R9 2 Open, resistors R25, R26, R32, R33, R39 5 100Ω 0603 resistors L12 Component Suppliers SUPPLIER WEBSITE Amphenol RF www.amphenolrf.com AVX North America www.avx.com Digi-Key Corp. www.digikey.com Murata Americas www.murataamericas.com Taiyo Yuden www.t-yuden.com Note: Indicate that you are using the MAX2140 when contacting these component suppliers. www.maximintegrated.com Maxim Integrated │  2 MAX2140 Evaluation Kit Quick Start The MAX2140 EV kit is fully assembled and factory tested. Follow the instructions in the Connections and Setup section for proper device evaluation. Test Equipment Required This section lists the recommended test equipment to verify operation of the MAX2140. It is intended as a guide only, and some substitutions are possible: ●● MAX2140 EV kit ●● RF signal generator capable of delivering at least +5dBm of output power at the operating frequency (HPE4433B, or equivalent) ●● RF power sensor capable of handling at least +20dBm of output power at the operating frequency (HP 8482A, or equivalent) ●● RF power meter capable of measuring up to +20dBm of output power at the operating frequency (HP 437B, or equivalent) ●● RF spectrum analyzer that covers the MAX2140 operating frequency range, as well as a few harmonics (FSEB20, for example) ●● Power supply capable of up to 1A at +2.7V to +6.0V ●● Ammeter for measuring the supply current (optional) ●● 50Ω SMA cables ●● Network analyzer (HP 8753D, for example) to measure small-signal return loss and gain (optional) ●● PC laptop or tablet with Microsoft Windows XP®, Windows® 7, 8 OS and a USB port ●● USB-A male to USB-B male cable ●● US keyboard Evaluates: MAX2140 Connections and Setup This section provides a step-by-step guide to operating the EV kit and testing the device’s function. Do not turn on the DC power or RF signal generators until all connections are complete: 1) Connect two DC supplies set to ±5V (through an ammeter if desired) to the +5V, -5V, and GND terminals on the EV kit. Do not turn on the supply. 2) Connect a DC supply set to 0V to the PWM terminals on the EV kit. Do not turn on the supply. 3) Connect one RF signal generator to the JRFIN SMA connector; do not turn on the generator’s output. Set the power level to -91dBm. 4) Connect the I/Q output on the EV kit to a spectrum analyzer through an SMA cable. 5) Connect the PC to the INTF3000 interface board using the USB-A male to USB-B male cable. On INTF3000, remove jumper JU1, and connect a DC supply set to +3V to the VPULL connector. Connect the 25-pin connector of the INTF3000 (J4) directly to the 25-pin connector on the EV kit (J1). 6) Run the control software on an IBM-compatible PC. 7) Turn on the DC supply. The supply current should read approximately 150mA. 8) Activate the RF generator’s output. 9) Check the I/Q outputs. Layout Issues A good PCB is an essential part of an RF circuit design. The EV kit PCB can serve as a guide for laying out a board using the MAX2140. 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 PCB should have decoupling capacitors to the closest ground. Refer to the Layout section in the MAX2140 IC data sheet for more information. Windows and Windows XP are registered trademarks and registered service marks of Microsoft Corporation. www.maximintegrated.com Maxim Integrated │  3 MAX2140 Evaluation Kit Evaluates: MAX2140 Figure 1a. MAX2140 EV Kit Schematic (Sheet 1 of 2) www.maximintegrated.com Maxim Integrated │  4 MAX2140 Evaluation Kit Evaluates: MAX2140 Figure 1b. MAX2140 EV Kit Schematic (Sheet 2 of 2) www.maximintegrated.com Maxim Integrated │  5 MAX2140 Evaluation Kit 1.0” Figure 2. MAX2140 EV Kit Component Placement Guide— Component Side www.maximintegrated.com Evaluates: MAX2140 1.0” Figure 3. MAX2140 EV Kit Component Placement Guide— Secondary Side Maxim Integrated │  6 MAX2140 Evaluation Kit 1.0” Figure 4. MAX2140 EV Kit PCB Layout—Layer 2 www.maximintegrated.com Evaluates: MAX2140 1.0” Figure 5. MAX2140 EV Kit PCB Layout—Layer 3 Maxim Integrated │  7 MAX2140 Evaluation Kit 1.0” Figure 6. MAX2140 EV Kit PCB Layout—Component Side www.maximintegrated.com Evaluates: MAX2140 1.0” Figure 7. MAX2140 EV Kit PCB Layout—Secondary Side Maxim Integrated │  8 MAX2140 Evaluation Kit Evaluates: MAX2140 Revision History REVISION NUMBER REVISION DATE 0 1/04 Initial release 1 11/14 Updated Quick Start section DESCRIPTION PAGES CHANGED — 2, 3 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2014 Maxim Integrated Products, Inc. │  9