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MAXIM Evaluates: MAX2335 Manual(1)(1)

1. RAGA Aman ra MAXIM MAX2335 Evaluation Kit General Description Features The MAX2335 evaluation kit EV kit simplifies evalua Easy Evaluation of the MAX2335 tion of the MAX2335 450MHz CDMA OFDM LNA mixer 2 9V to 3 3V Single Supply Operation This kit allows evaluation of the device s low noise amplifier LNA downconverter and buffer Figure 1 All Critical Matching Components Included shows the MAX2335 EV kit schematic The EV kit pro CDMA Band RF Ports Matched to 450MHz vides 50Q SMA connectors for all RF and IF input and SMA Connectors for All RF and IF Signal Ports output signals UIS Easy Configuration of Operating Modes Ordering Information PART TEMP RANGE IC PACKAGE MAX2335EVKIT 40 C to 85 C 28 Thin QFN EP EP Exposed paddle Component List DESIGNATION QTY DESCRIPTION 22nH 5 inductor 0402 TOKO LL1608 FH22NJ 47nH 5 inductor 0603 Coilcraft CS 47NXJBC 270nH 5 inductors 0805 TOKO LL2012 FHLR27J 1nH 5 inductor 0402 Coilcraft CS 1NOXJBW 47nH 2 inductor 0402 Coilcraft CS 47NXGBW LNAOUT IFOUT A connectors LNAIN LOIN Johnson 142 0701 801 DESIGNATION DESCRIPTION 0 01uF 10 capacitors GRM155R71C103K C2 C22 100pF 5 capacitors C24 C27 TDK C1005C0G1H101J C1 C9 L5 L6 C3 C6 C8 C10 C12 C14 C17 C21 C30 C31 C33 3 9pF 5 capacitor EMK1
2. I 1000pF LC Vcc LO 2 LOIN NC 10 LO OUT NC IF IF CDMA R3 MIXIN RBIAS N C LUN TOKO 85F 45808 1011 BUFFEN gae IUD I GND Velt ta frog 9 9 9 I 100pF 000pF lt gt 22uF 7 Tc C31 c30 C12 d R11 OPEN OG OPEN OPEN C33 I 1000pF LOIN Figure 1 MAX2335 EV Kit Schematic MAXI Toren sojENJEAF Evaluates MAX2335 MAX2335 Evaluation Kit Kane iil Figure 2 MAX2335 EV Kit PC Board Layout Front Side MAXI NI Figure 3 MAX2335 EV Kit PC Board Layout Ground Layer 2 MAXI MAX2335 Evaluation Kit sojENJEAF Evaluates MAX2335 MAX2335 Evaluation Kit Figure 4 MAX2335 EV Kit PC Board Layout Ground Layer 3 MAXI Figure 5 MAX2335 EV Kit PC Board Layout Back Side MAXI MAX2335 Evaluation Kit GEETX VW sojENJEAF Evaluates MAX2335 MAX2335 Evaluation Kit MODEO LNAOUT 8 a 129 04 5 R3 R7 m 07 020 Y R12 R139S 18 S S e o LNAIN Jus LO 2 OFF LOW HIGH ON u4 MODE2 A SVIAAIL VI MAX2335 EV KIT REV 1 MADE USA 408 737 7600 8 WWW MAXIM IC COM IMIX 6 s n assy 7 ON 321 09 05 AQ Figure 6 MAX2335 EV Kit Component Placement Guide Top Silk GND MAXI MAX2335 Evaluation Kit 3 IMB CCBVEL Figur
3. 05SJ3R9JW B C11 C18 C19 1000pF 10 capacitors C20 C26 C28 TDK C1005X7R1H102K C7 6800pF capacitor TDK C1005X7R1E682K SMA connectors Johnson 142 0701 201 C16 MIXIN LOOUT 6 8pF 5 capacitors EMK105RH6R8JW B R1 R4 R5 R6 R8 R2 R9 R12 R13 R3 18 2kQ 1 resistor 0402 R7 1 resistor 0402 R10 24 3kQ 1 resistor 0603 R11 R16 L2 0 2 5 resistors 0402 R14 200 1 resistor 0402 4750 1 resistor 0603 Balun transformer TOKO B5F 458DB 101 1 MAX2335ETI 28 pin TQFN E CC Test points VEGENE 2 Digi Key 5000K ND MAXI 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 C23 C25 1 5 resistors 0402 22yF 5 capacitor TAJC226K010 1 35 Open JU1 JUS JU4 1x3 headers JU5 JU7 Sullins PTC36SAAN C29 Open Shunts Sullins STCO2SYAN JU2 JUG 1 x 2 headers JU8 JU10 Sullins PTC36SAAN 18nH 5 inductor 0402 TOKO LL1608 FH18NJ JU1 JU8 JU10 L1 L3 L10 L11 12 Open sojJENJEAF Evaluates MAX2335 MAX2335 Evaluation Kit SUPPLIER PHONE Component Suppliers FAX WEBSITE 803 946 0690 EF Johnson 402 474 4800 803 626 2123 WWW avx corp com 402 474 4858 www efjohnson com Kamaya 219 489 1533 219 489 2261 www kamaya c
4. e 7 MAX2335 EV Kit Component Placement Guide Bottom Silk 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 9 2006 Maxim Integrated Products Printed USA MAXIM is a registered trademark of Maxim Integrated Products Inc GEETX UN sojENJEAF
5. gnal generator outputs Measure the peak of the 110MHz IF signal on the spectrum analyzer Compensate the IF signal con version gain of the balun and the board losses The balun loss is approximately 0 3dB and the input and output board losses 0 188 each 10 The conversation gain is approximately 13dB after corrections from step 9 are applied MAXI Checking Noise Figure Noise figure measurements are sensitive to board and lab setup losses and parasitics There are many tech niques and precautions for measuring a low noise fig ure Detailed explanation of these items goes beyond the scope of this document For more information on how to perform this level of noise figure measurement refer to the noise figure meter operating manual as well as to the Hewlett Packard Application Note 57 2 Noise Figure Measurement Accuracy MAX2335 Evaluation Kit R14 VCC 200 E 18nH OPEN LNAOUT PC Board Layout Considerations The MAX2335 EV kit can serve as a board layout guide Keep PC board trace lengths as short as possible to minimize parasitics Keep decoupling capacitors close to the device with a low inductance connection to the ground plane L6 AN g MIXIN LNAOUT NC Vcc N C NC R10 24 3kQ Ut 2 MAXIM MAX2335 LNAIN E m m CL OPEN veo oan R1 C11 100 1000F g C18 1000pF 7 02 C19
6. om Murata 949 852 2001 949 852 2002 www murata com TOKO 708 297 0070 708 699 1194 www toko com Note Indicate that you are using the MAX2335 when contacting these suppliers Recommended Test Equipment e Power supply capable of providing 100mA at 2 9V to 3 3V e Two RF signal generators capable of delivering 70dBm to 10dBm of output power from 450MHz to 1200MHz HP 8658C or equivalent e Network analyzer covering the MAX2335 operating frequency range HP 8753 or equivalent Spectrum analyzer covering the MAX2335 operating frequency range HP 8561E or equivalent Ammeter optional for measuring supply current Noise figure meter optional for measuring the noise figure of the LNA and downconverters HP 8970B or equivalent Quick Start The MAX2335 EV kit is fully assembled and factory tested Follow the instructions in the Connections and Setup sec tion for proper device evaluation Connections and Setup This section provides a step by step guide to setting up the MAX2335 EV kit and testing the LNA and down converters Do not turn on the DC power or RF sig nal generators until all connections are made Low Noise Amplifier High Gain High Linearity Mode 1 Set Mode 0 JU1 Mode 1 JU3 and Mode 2 JU4 on the EV kit to VCC high This enables the LNA to oper ate in the high gain and high linearity mode 2 Connect a DC supply preset to 3V through an ammeter if desired to the EV kit
7. s VCC and GND terminals Do not turn on the supply 3 Perform a full two port calibration on a network ana lyzer at a 30dBm power level over a 400 2 to 500MHz frequency range 4 5 Connect port 1 and port 2 of the network analyzer to LNAIN and LNAOUT respectively to measure the gain at 465MHz The network analyzer display should indicate a typ ical gain of 1608 at 465MHz after accounting for board losses The input and output board losses are 0 388 at the 465MHz band These losses to be added to the measurements to obtain the perfor mance of the LNA Downconverter High Gain High Linearity Mode Turn off the DC supply Remove the network analyzer from the LNA input and output connections The DC supply connec tions for testing the downconverter mixer are the same as LNA section Set the LO 2 jumper JU5 to VCC to enable the LO divider circuit The mode setting for testing the downconverter mixer is the same as the LNA section Connect an RF signal generator with output dis abled to the LOIN connector Set the frequency to 1150MHz and the output power to 7dBm Connect another RF signal generator with output disabled to the MIXIN SMA connector Set the fre quency to 465MHz and the output power to 40dBm Connect the spectrum analyzer to the IFOUT SMA connector Set the spectrum analyzer center fre quency to 110MHz Turn on the DC supply Enable the LO signal gener ator and RF input si

MAXIM Evaluates: MAX2335 Manual(1)(1)

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