MAX2170 Evaluation MAX2170 evaluation kit) simplifies evaluation

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MAX2170 Evaluation MAX2170 evaluation kit) simplifies evaluation

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19-0711; 12/06
MAX2170 Evaluation
MAX2170 evaluation kit) simplifies evaluation MAX2170 direct-conversion low-IF tuner. enables testing device's performance requires additional support circuitry. Standard connectors included inputs outputs allow quick easy evaluation test bench. fully assembled tested factory. This document provides list equipment required evaluate device, straightforward test procedure verify functionality, description circuit, circuit schematic, bill materials (BOM) kit, artwork each layer PCB. Easy Evaluation MAX2170 +2.7V +3.5V Single-Supply Operation Connector Ports Connector Baseband Output Jumpers Automatic Gain Control Critical Peripheral Components Included Parallel Port Interfacing Control Software Available www.maxim-ic.com
Features
Evaluates: MAX2170
Ordering Information
PART MAX2170EVKIT+ TEMP RANGE -40°C +85°C PACKAGE QFN-EP*
+Denotes lead-free RoHS-compliant kit. Exposed paddle.
Component List
DESIGNATION C46, C47, C71, C72, C14, C18, C22, C38, C39, C13, C16, C20, C28, C10, C15, C19, C21, C31, C40, C42, C44, C45, C11, DESCRIPTION 18pF capacitor (0402) Murata GRM1555C1H180J 330pF ±10% capacitors (0402) Murata GRM155R71H331K 1.0µF ±10% capacitors (0402) Murata GRM155R60J105K 100µF ±20% capacitor (1210) 1210D107MAT 4.7µF ±20% capacitor (0805) Murata GRM21BF51A475Z 1000pF capacitors (0402) Murata GRM1555C1H102J 0.01µF ±10% capacitors (0402) Murata GRM155R71C103K 0.1µF ±10% capacitors (0402) Murata GRM155R61A104K 0.33µF ±10% capacitors (0603) Murata GRM155R60J334K DESIGNATION C24, C25, C26, C30, C32-C37, C43, DESCRIPTION 100pF capacitor (0402) Murata GRM1555C1H101J installed, capacitors 33pF capacitor (0402) Murata GRM1555C1H330J 10µF ±10% tantalum capacitor (C-case) TAJC106K016 Super-mini Schottky diode Central Semi CMDSH2-3 (lead free) vertical mount Electronics 580-002-00 installed end-launch jack receptacles, 0.062in Johnson 142-0701-801 DB25 right-angle male connector 5747238-4 installed
Maxim Integrated Products
pricing, delivery, ordering information, please contact Maxim/Dallas Direct! 1-888-629-4642, visit Maxim's website www.maxim-ic.com.
MAX2170 Evaluation Evaluates: MAX2170
Component List (continued)
DESIGNATION JP4, JP10 R9-R12, R18, R41, R35, R37, R46, R14, R15, R16, R19, R25, R27, R28, R17, R20, R21, R22, DESCRIPTION in-line header, 100-mil center Sullins PEC36SAAN in-line headers, 100-mil center Sullins PEC36SAAN installed 91nH inductors (0603CS) Murata LQW18AN91NJ00 1GHz wideband transistors Philips BFS17W resistor (0402) resistors (0402) resistors (0402) resistors (0402) resistors (0402) 2.7k resistors (0402) 27.4k resistor (0402) 5.1k resistors (0402) installed, resistors BB+, BB-, HOLD_AGC, J14, MUX, REF, VDET, VGC_BB, VGC_RF, VTUNE GND, J15, TP1, 49.9 resistor (0402) DESIGNATION R31, R36, DESCRIPTION resistor (0402) 6.2k resistor (0402) 4.7k resistors (0402) resistor (0402) 160k resistor (0402) resistors (0402) MAX2170ETL+ MAX4453ESA+ single-supply with rail-to-rail outputs buffer/driver Texas Instruments SN74LV07ADB MAX4729EXT+ low-voltage, SPDT CMOS analog switch 24.576MHz crystal Corporation 7B24500140
mini (red) Keystone 5000
resistors (0402)
mini (black) Keystone 5001 MAX2170EVKIT+
Component Suppliers
SUPPLIER Corp. Central Semiconductor Corp. Coilcraft, Inc. Murata Mfg. Co., Ltd. Philips Texas Instruments Inc. Technology PHONE 843-448-9411 631-435-1110 847-639-6400 770-436-1300 800-447-1500 800-336-5236 714-990-5510 843-448-7139 631-435-1824 847-639-1469 770-436-3030 714-990-5520 WEBSITE www.avxcorp.com www.centralsemi.com www.coilcraft.com www.murata.com www.nxp.com www.ti.com www.txc.com.tw
Note: Indicate that using MAX2170 when contacting these component suppliers.
MAX2170 Evaluation
Quick Start
Recommended Equipment
This section lists recommended test equipment verify operation MAX2170. intended guide only, some substitutions possible: signal generator capable delivering least +5dBm output power operating frequency (HPE4433B equivalent) spectrum analyzer that covers MAX2170 operating-frequency range (e.g., FSEB20) power supply capable +2.7V +6.0V ammeter measuring supply current (optional) cables cables network analyzer (e.g., 8753D) measure small-signal return loss (optional) Connect signal generator either VHFIII, L-BAND input through connectors respectively. turn generator's output. Connect baseband output spectrum analyzer through cable. Connect board through parallel cable. Turn supply. supply current should read approximately 70mA. control software IBM-compatible Using control software, configure following: Select desired band operation channel through Block section software's graphical interface. Based frequency, software automatically sets appropriate tracking-filter settings VHF/FM mode. power-detector threshold factory-calibrated typical input power -52dBm. This information stored bits <7:5> register table. software automatically loads information stored bits <7:5> register table into bits <7:5> register proper power-detector response. baseband filter factory-trimmed have typical bandwidth (-3dB corner) MHz. information stored bits <2:0> register table. software automatically loads information stored bits <2:0> register table into bits <2:0> register proper baseband filter bandwidth. Auto Selection (VAS) already enabled through default settings (this allows software pick appropriate sub-band desired operation frequency). desired, turned manually select desired sub-band. disabled through VAS_EN Registers Block section software. Activate power level generator achieve connector output 0.5VP-P (-2dBm) when loaded instrument.
Evaluates: MAX2170
Procedure
Measurement Considerations MAX2170 includes on-board buffer that converts baseband differential outputs singleended output (see Figure details). buffer configured gain one. output buffer consists resistor series matching test equipment. Note that there loss output test equipment used. This loss must accounted when measuring gain. Connections Setup MAX2170 fully assembled tested. This section provides step-by-step guide operating testing device's function. Caution: turn power signal generators until connections made: Connect supply +3.0V (through ammeter desired) terminals kit. turn supply. Note that VCC2 board shorted together through JP3.
Connect supply +2.4V (maximum gain) RFAGC terminal kit. turn supply. Connect supply +2.4V (maximum gain) BBAGC terminal kit. turn supply.
MAX2170 Evaluation Evaluates: MAX2170
Note loss output ports resistor series buffer outputs load test equipment.
Layout Issues
good essential part circuit design. serves guide laying board using MAX2170. Keep traces carrying signals short possible minimize radiation insertion loss. impedance control signal traces. exposed paddle must soldered evenly board's ground plane proper operation. abundant vias beneath exposed paddle between traces minimize undesired coupling. minimize coupling between different sections each must have bypass capacitor with impedance closest ground frequency interest. share ground vias among multiple connections ground plane. Refer Layout section MAX2170 data sheet more information.
Gain Control
baseband circuits MAX2170 controlled independently through jumpers JP10 JP4, respectively. Connecting pins JP10 closes gain control loop. MAX2170 also implements control loop baseband through shorting pins JP4. HOLD_AGC controls MAX4729 analog switch (see Figure schematic details). typical applications, demodulator controls baseband VGA. analog switch external circuitry (Q1, optional components only needed when demodulator lacks baseband control circuit.
MAX2170 Evaluation Evaluates: MAX2170
Figure MAX2170 Schematic
MAX2170 Evaluation Evaluates: MAX2170
Figure MAX2170 Component Placement Guide-Component Side
MAX2170 Evaluation Evaluates: MAX2170
Figure MAX2170 Layout-Component Side
MAX2170 Evaluation Evaluates: MAX2170
Figure MAX2170 Layout-Solder Side
Maxim cannot assume responsibility circuitry other than circuitry entirely embodied Maxim product. circuit patent licenses implied. Maxim reserves right change circuitry specifications without notice time.
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 2006 Maxim Integrated Products registered trademark Maxim Integrated Products.
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