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19-2573; Rev 0; 8/02
MAX2150 Evaluation Kit
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 50 connectors for all signal inputs and outputs. o o o o o o
Features
3-Wire Control Interface Differential Baseband Inputs 2.7V to 3.6V Single-Supply Operation 50 Connectors on All Signal Ports Low-Power Shutdown Modes PC Control Software (Available at www.maxim-ic.com)
Evaluates: MAX2150
Ordering Information
PART MAX2150EVKIT TEMP RANGE -40C to +85C 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 BUFEN C1, C2, C3, C12, C18, C28, C30, C31, C34, C36, C37, C50, C52 C4, C9, C10, C11, C13, C35 C5, C6, C7, C15, C16 C8 C14, C17 C19, C20, C21, C32, C33 C22 C23 C24 QTY 1 DESCRIPTION 3-pin header, 100mil centers Digi-Key S1012-36-ND 0.1F 10% capacitors (0603) Murata GRM188R71C104K DESIGNATION C25 C26 C27 DCIN, EN QTY 1 1 1 2 DESCRIPTION 1F 10% tantalum capacitor, case A AVX TAJA105K016 470pF 10% capacitor (0402) Murata GRP155R71H471K 1.0F 10% capacitor (0603) Murata GRM188R60J105K Test points Digi-Key 5000-ND 50 BNC connectors, 31 series, Amphenol Allied Electronics 31-5329-52RFX 713-9041 2-pin headers, 100mil centers Digi-Key S1012-36-ND
13
6 5 1 2 5 1 1 1
100pF 5% capacitors (0402) Murata GRP1555C1H101J Open 22pF 5% capacitor (0402) Murata GRP1555C1H220J 100pF 5% capacitors (0603) Murata GRM1885C1H101J 0.1F 10% capacitors (0402) Murata GRP155R61A104K 6800pF 10% capacitor (0402) Murata GRP155R71E682K 0.068F 10% capacitor (0402) Murata GRP155R61A683K 680pF 10% capacitor (0402) Murata GRP155R71H681K
J1, J3
2
J5, J6, J7, J11, J16, J17, J19, J20, VCCSD J8, J13, J14, J15, J18 (Note 2) J10 J19, J20, BUFEN, VCCSD
9
5
SMA connectors, edge mount EFJohnson 142-0701-801 10-pin header Digi-Key S2012-36-ND Shunt-shorting jumpers Digi-Key S9000-ND
1
4
________________________________________________________________ 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.
MAX2150 Evaluation Kit Evaluates: MAX2150
Component List (continued)
DESIGNATION L1 R1-R4, R29, R35 R12 R13, R18 R23 R24, R25 R31-R34 U1 (Note 1) U2 VTUNE_OUT QTY 1 6 1 2 1 2 4 1 1 1 Open Open 0 5% resistor (0402) 0 5% resistors (0603) 245 5% resistor (0402) 1.1k 1% resistors (0402) 3.3k 5% resistors (0603) MAX2150EGI I/Q wideband modulator VCO Fujitsu VC-3R0A23-0967/1750B SMA connectors, PC mount EFJohnson 142-0701-201 20MHz surface-mount crystal CTS Reeves Digi-Key ATS200SM CTX515TR-ND MAX2150 EV kit circuit board, rev C MAX2150 data sheet MAX2150 EV kit data sheet DESCRIPTION
Quick Start
The MAX2150 EV kit is fully assembled and factory tested. Follow the instructions in the Connections and Setup section.
Test Equipment Required
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)
Y1 None None None
1 1 1 1
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.
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.
Connector Description
CONNECTOR J1, J3 J5, J19 J6 J7, J11 J8 J10 J13 J14, J15 J16, J17 J18 J20 -- -- -- -- -- 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
2
_______________________________________________________________________________________
MAX2150 Evaluation Kit
3) Set the power supply to +3V and turn it off. 4) Set the adjustable power supply to +1.6V and turn it off. 5) Connect the ground terminal to GND. 6) Connect the positive +3V terminal to VCC and the power supply of the interface board. 7) Connect the positive terminal of the adjustable power supply to pin DCIN on the board. 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. 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. Operation Modes: 1) TX mode 2) SYNTH mode 3) MOD mode 4) Software shutdown mode 5) Hardware shutdown mode Refer to the MAX2150 data sheet for details.
Adjustments and Control
Evaluates: MAX2150
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.
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3
MAX2150 Evaluation Kit Evaluates: MAX2150
J1 31-5239-52RFX I C50 0.1F VCC R31 3.3k R32 3.3k R33 3.3k R34 3.3k C2 0.1F R1 OPEN R2 OPEN
J3 31-5239-52RFX Q C52 0.1F
R29 OPEN DCIN C28 0.1F
VCC R4 OPEN C1 0.1F BUFEN
R3 OPEN
VCC J6 VCC J7 GND 1 VCC C17 100pF 2 VCC_PA LO20 C8 22pF VCC 3 C16 OPEN J16 4 TEST2 RFOUT VCC_LO 19 1 VT GND C12 0.1F C20 0.1F U2 VC34DA230967/ 1750B350FUJI 7 6 GND VSW GND 5 4 C25 1F C31 0.1F 28 VCC_RF TXEN 27 I+ 26 I25 Q+ 24 Q23 BUFEN 22 BUFOUT LO+ 21 C7 OPEN C32 0.1F J15 LO C3 0.1F VCC R12 0 C5 OPEN C6 OPEN C33 0.1F J13 BUFOUT
J14 LO
J8 RFOUT
R13 0 C15 OPEN
C18 0.1F
U1 MAX2150
VCC_D 18
VCC
C4 100pF
2 3
VCC J17 5 TEST1 VCC_A 17 C11 100pF 16
C10 100pF
VCC GND OUT 8
VCC J19 J5 VCCVCO J11 GND
LOCK J20
6
LOCK
CHP
VCC VCCSD C27 1.0F 7 C14 100pF 15
C22 6800pF VCC VCC_SD CLK 8 DATA 9 EN JUMP_PAD C37 0.1F C13 100pF EN 10 SHDN 11 SHDN STNEN 12 OSCIN 13 VCC_CHP VCC_XTAL 14 C9 100pF
C35 100pF
C34 0.1F
C19 0.1F
R24 1.1k
R25 1.1k
R23 245 VCC C23 0.068F
C24 680pF
C26 470pF R35 OPEN
L1 OPEN
C21 0.1F
VTUNE_OUT TUNEOUT
FILTVCC
VCOSEL
SYNEN
LOCK
DATA
TXEN
C36 0.1F
R18 0 C30 0.1F
Y1
CLK J10-5
J10-1
J10-3
J10-7
EN
J10-13
J10-15
J10-17
J10-11
J10-19
J10-9
J18 REFL
J10-2
J10-4
J10-6
J10-12
J10-14
J10-16
J10-18
Figure 1. MAX2150 EV Kit Schematic 4 _______________________________________________________________________________________
J10-10
J10-20
J10-8
MAX2150 Evaluation Kit Evaluates: MAX2150
1.0"
Figure 2. MAX2150 EV Kit Primary-Side Silkscreen _______________________________________________________________________________________ 5
MAX2150 Evaluation Kit Evaluates: MAX2150
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 (c) 2002 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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