+Denotes lead-free and RoHS-compliant. J1, J2, J3, J6, J7, J8, J10, J11, J12

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1 -; Rev ; / MAX Evaluation Kit General Description The MAX evaluation kit (EV kit) simplifies evaluation of the MAX universal GPS receiver. It enables testing of the device performance and requires no additional support circuitry. Standard Ω SMA connectors are included on the EV kit for the inputs and outputs to allow for quick and easy evaluation on the test bench. The evaluation kit is fully assembled and tested at the factory. This document provides a component list, a list of equipment required to evaluate the device, a straightforward test procedure to verify functionality, a description of the EV kit circuit, the circuit schematic, and artwork for each layer of the printed-circuit board (PCB). DESIGNATION QTY DESCRIPTION C C, C, C C, C, C, C, C C, C, C, C, C, C, C C, C C, C, C, C, C, C C, C, C C, C, C, C, C, C, C, C C C, C C C C, C, C, C, C, C, C, C C, C, C, C C, C, C, C, C.µF ±% capacitors () Murata GRMRAK pf ±% capacitors () Murata GRMCHJ µf ±% tantalum capacitors (B case) AVX TAJBK.µF ±% capacitors () Murata GRMRCK pf ±% capacitor () Murata GRMCHJ pf ±% capacitors () Murata GRMRHK pf ±% capacitor () Murata GRMRHK Not installed, capacitors pf ±% capacitors () Murata GRMCHRJ.µF ±% capacitors () Murata GRMRJK Features Easy Evaluation of the MAX IC +.V to +.V Single-Supply Operation Ω SMA Connector on the RF Ports and for the Baseband Outputs All Critical Peripheral Components Included Parallel Port for -Wire Interfacing PC Control Software Available Upon Request PART MAXEVKIT+ +Denotes lead-free and RoHS-compliant. Ordering Information TYPE EV Kit Component List DESIGNATION QTY DESCRIPTION J, J, J, J, J, J, J, J, J J SMA end-launch jack receptacles,.in Johnson -- x dual inline header, -mil center Sullins PECDAAN JDR DB right-angle male connector AMP - L, L Not installed, inductors R, R R, R R, R Not installed, resistors R, R, R, R, R, R, R R, R R, R, R, Ω ±% resistors () R, R, R, R, R R, R, R kω ±% resistors () R R, R, R R, R, R kω ±% resistors () R, R, R.Ω ±% resistors () R, R, R, R Ω ±% resistors () R.Ω ±% resistor () R kω ±% resistor () T, T, T Not installed TP TP, TP, TP, TP PC mini-red test points Keystone Evaluates: MAX Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at ---, or visit Maxim s website at

2 MAX Evaluation Kit Evaluates: MAX DESIGNATION QTY DESCRIPTION U, U MAXEXK+ ultra-low-noise, high PSRR, low-dropout, ma linear regulators U.MHz TCXO Rakon ITBE U, U, U Not installed U, U U U MAXESE+ ultra-high-speed, low-distortion, differential-tosingle-ended line receivers MAXESE+ V/µs wideband, high-output-current, single-ended-to-differential line driver MAXETI+ low-power, singleconversion, low-if GPS receiver Component List (continued) DESIGNATION QTY DESCRIPTION U W W, W, W, W, W SNLVADR hex buffer/driver with open-drain output Texas Instr um ents S N LV AD R x inline headers, -mil center Sullins PECSAAN W W, W x -inline headers, -mil center Sullins PECSAAN Y Not installed Shorting jumpers, gold finish contact (W W, W W, W, W) Sullins SSCSYAN Component Suppliers SUPPLIER PHONE FAX WEBSITE AVX Corp Murata Mfg. Co., Ltd Rakon Ltd Texas Instruments -- Note: Indicate that you are using the MAX when contacting these component suppliers. Quick Start The MAX EV kit includes two on-board MAX linear regulators for powering up the MAX device to a regulated supply voltage of +.V. When using the linear regulators, connect pins - of jumpers W and W. The MAX can also be powered directly through an external power supply through pin of the jumpers (see the schematic diagram in Figure for details). Required Test Equipment This section lists the recommended test equipment to verify operation of the MAX. It is intended as a guide only and some substitutions are possible. One RF signal generator capable of delivering at least +dbm of output power at the operating frequency (e.g., HP EB or equivalent) An RF spectrum analyzer that covers the MAX operating frequency range (e.g., FSEB or equivalent) A power supply capable of up to A at +.V to +V One ammeter for measuring the supply current (optional) Ω SMA cables A network analyzer (e.g., HP D or equivalent) to measure small-signal return loss (optional) A dual power supply capable of delivering up to A at ±V A user-supplied IBM-compatible PC Connections and Setup This section provides a step-by-step guide to operating the EV kit and testing the device functions. Caution: Do not turn on the DC power or RF signal generators until all connections are completed. ) Connect the PC to the EV kit using the parallel cable. ) Connect a DC supply set to +V (through an ammeter if desired) to jumpers W and W on the EV kit. Do not turn on the supply. When using the on-board linear regulators to power the MAX, connect pins - of jumpers W and W.

3 MAX Evaluation Kit ) Connect a DC supply set to +V to jumper W on the EV kit. Connect a DC supply set to -V to jumper W on the EV kit. Do not turn on the supply. ) Make sure that jumpers W W and W are shorted for proper supply connection. ) Leave jumpers W, W, W, and W open and connect jumper W to ground if the MAX is evaluated using a -wire bus. ) Set the signal generator to.mhz, -dbm. Do not turn on the generator s output. Connect the RF signal generator to either the LNA or LNA input. ) Connect the output of the MAX buffer on the EV kit to a spectrum analyzer. ) Turn on the DC supply. The supply current should read approximately ma. ) Run the control software on an IBM-compatible PC. Upon device power-up, the default state should set the MAX device in automatic-gain-control mode (AGCMODE =, PGAIEN =, and PGAQEN = ). The default configuration will set the center frequency to.mhz and a bandwidth of.mhz. Using the control software, configure the following: a) In the Entry page of the graphical user interface (GUI), set the reference frequency to.mhz. b) Set the R divider to. c) Enable the I and Q channels by setting the IQEN =. d) Set the output level to X = analog outputs through the Entry page or configuration register. ) Activate the RF generator and observe the IF signal at.mhz at an I ANA SMA connector J. ) Set the output level to = CMOS logic through the Entry page and observe the ADC digital output at JA JD header pins. 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 MAX. Keep traces carrying RF signals as short as possible to minimize radiation and insertion loss. Use impedance control on all RF signal traces. The exposed paddle must be soldered evenly to the board s ground plane for proper operation. Use abundant vias beneath the exposed paddle and between RF traces to minimize undesired RF coupling. To minimize coupling between different sections of the IC, each V CC pin must have a bypass capacitor with low impedance to the closest ground at the frequency of interest. Do not share ground vias among multiple connections to the PCB ground plane. Refer to the Layout Issues section of the MAX IC data sheet for more information. Evaluates: MAX

4 MAX Evaluation Kit Evaluates: MAX J FILTER_IN. Q-_ R D k - TP VEE + A C P R VCC D VCC_TCXO A C W JU SHDN BP C n CLK_ C I_ Q_ IDLE_B VCC_IF C uf R + + J RF_LNA_IN J RF_LNA_IN - C.u U SAFEBGKAFRS R ohm p I-_ R k I+_ R k C p C n R k T R R k ADTT- C n - ANT_FLAG R k U n VEE EN IN- VEE J R C C C C R + k p.u.u U ANT_FLAG R R NC VEE pf C R k n SAFEBGKAFRS I_ C NC VEE pf IN R LNA_ I_ - T IN+ VEE MAXETI+ R DC C p ANT_BIAS VDD_ADC VEE REF R C p C VEE EN Interposer Part # -- VCC_RF - C VCC_RF Q_ n ADTT- C.u C.u n MIX_IN Q_ U JE I+ IN C L u A VCC p VCC_D R C C C LD W CLK_ Q- J C n Y A J.u.u u CLK_ SHDNB REF/XTAL Y Y A MAXEXK+ R VCC_D C. Q+ VCC_VCO VCC_CP U A Y R C CP_ U C C C n J C C C VCC.u C C Y A p p.u p.u n Y IN TP p u Y LOCK_DET R C C C W R LOCK_DET K REF_IN A Pin ITB SNLVADR.u.u u CP_ U SHDN BP TP RSX- C A R K C.n VCC_BUFF MAXEXK+ p RSX- Xtal: Pin to AC Coupling Cap. Others shorted to R C p R Q+_ R k IDLE_B p + - C R R R I ANA J Q ANA + u u B B VDD_D A Y A VCC_VCO VCC_RF S_CLK VP_IN VN_IN + - VCC_CP VCC_IF VCC_D DC VCC_TCXO VCC_BUFF W VCC_BUFF MAXIM MAX Evaluation Kit ANALOG VERSION SHDN_B VDD_D DATA VCC_BUFF Note: R, R, R, R are ohms in Analog Mode, REV A R, R, R, R are in Digital Modes. Sheet of SHDNB_IN SCLK_IN CS_B_IN D_IN VCC_BUFF I ID_EB_IN LD_ Q Q CLK I- + C u R C p R k R. R K W C W W R R C n VDD_D TP A INP C n R R k C.n C.u L nh JD R C n C u R CG CG W C n G A Y A Y A Y U VCC A Y A Y A SNLVADR R K SHDNB TP A R R DATA CLK CS_B VCC_VCO CP_ VCC_CP VCC_BUFF TSENS LNA_IN PGM LNA_N /IDLE VCC_IF _BYP W JU C C.n R K IN C n R CS_B W CG CG.n RK G TP VCOM_ADC A C n JC U MAXESE+ VCC VCC NC NC IN+ VEE VEE VEE VEE VEE REF EN T ADTT- J W R R K W C.u U MAXESE+ VCC VCC NC NC IN NC E IN- VEE pf E VEE VEE VEE VEE R k R C C pf R C n R C n W R R K R K R W C.n TP T_SEN A C p JB R R U. MAXESE+ VCC W R R K W R K R A R TP INN W JA C.u C R k C C n R C n R W W JDR R R R W C W + RK W Figure. MAX EV Kit Schematic

5 MAX Evaluation Kit Evaluates: MAX Figure. MAX EV Kit PCB Layout Top Layer Metal

6 MAX Evaluation Kit Evaluates: MAX Figure. MAX EV Kit PCB Layout Top Silkscreen

7 MAX Evaluation Kit Evaluates: MAX Figure. MAX EV Kit PCB Layout Bottom Layer Metal

8 MAX Evaluation Kit Evaluates: MAX Figure. MAX EV Kit PCB Layout Bottom Silkscreen 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, San Gabriel Drive, Sunnyvale, CA -- Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.