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MAX2470/MAX2471 Evaluation Kits
MAX2470/MAX2471 evaluation kits kits) simplify evaluation MAX2470/MAX2471 buffer amplifiers. They enable testing devices' performance require additional support circuitry. inputs outputs connectors facilitate easy connection test equipment. MAX2470 assembled with MAX2470 provides high-impedance input (with pads terminate pair matched differential outputs. sets logic level HI/LO bias-control input, allowing selection between 10MHz 500MHz 10MHz 200MHz operation. MAX2471 assembled with MAX2471 provides highimpedance inputs (with pads terminate pair matched differential outputs.
Component Lists
Common Components MAX2470/MAX2471 Kits
DESIGNATION None None DESCRIPTION 2200pF, 10%, ceramic-chip capacitors (0603) 10µF, 10%, tantalum capacitor TAJC106K016 Optional input-termination resistors (0603) (not installed) connectors mount) E.F. Johnson 142-0701-216 Test points Mouser 151-203 MAX2470/2471EVKIT board MAX2470/MAX2471 manual
Evaluate: MAX2470/MAX2471
Features
Easy Evaluation MAX2470/MAX2471 +2.7V +5.5V Single-Supply Operation On-Board Input-Frequency Range Selection (MAX2470) Single-Ended (MAX2470) Differential (MAX2471) Inputs Critical Peripheral Components Included
Additional Components MAX2470
DESIGNATION DESCRIPTION 2200pF, 10%, ceramic-chip capacitor (0603) 3-pin header (0.100" centers) Digi-key S1012-36-ND Shunt (jumper) Digi-key S9000-ND chip resistor (0603) chip resistor (0603) MAX2470EUT
Ordering Information
PART MAX2470EVKIT MAX2471EVKIT TEMP. RANGE -40°C +85°C -40°C +85°C PACKAGE SOT23-6 SOT23-6 MARK AAAX AAAY
Component Suppliers
SUPPLIER PHONE http://www.avxcorp.com http://www.ef johnson.com 803-946-0690 803-626-3123
Additional Components MAX2471
DESIGNATION DESCRIPTION 2200pF, 10%, ceramic-chip capacitor (0603) connector mount) E.F. Johnson 142-0701-216 MAX2471EUT
E.F. Johnson 402-474-4800 402-474-4858
Maxim Integrated Products
free samples latest literature: http://www.maxim-ic.com, phone 1-800-998-8800. small orders, phone 1-800-835-8769.
MAX2470/MAX2471 Evaluation Kits Evaluate: MAX2470/MAX2471
_Quick Start
MAX2470/MAX2471 kits fully assembled factory tested. Follow instructions Connections Setup section proper device evaluation. differential power-gain measurement, connect balun between outputs buffer spectrum analyzer.
Analysis
Adjust frequency span, center frequency, amplitude spectrum analyzer observe signal peak 200MHz; output signal power should read approximately -6dBm MAX2470 -5dBm MAX2471.
Test Equipment Required
This section lists recommended test equipment verify operation MAX2470/MAX2471. intended guide only, some substitutions possible. power supply capable supplying minimum 10mA +2.7V +5.5V. spectrum analyzer capable making measurements over bandwidth MAX2470/ MAX2471 harmonics, such 8561E. signal generator capable delivering 0dBm output power 500MHz, such 8648C signal generator. baluns with turns ratio operating range encompassing 10MHz 500MHz, such Macom model number 96341 180° hybrid (balun). Fully differential measurements MAX2470 require single 180° hybrid output. Fully differential measurements MAX2471 require 180° hybrids: input, output.
Detailed Description
This section describes circuitry surrounding MAX2470/MAX2471 kits. more detailed information about device operation, please consult MAX2470/MAX2471 data sheet. Figure schematic MAX2470/MAX2471 kits. Capacitors 2200pF DCblocking capacitors; this value contributes minimal reactance signal paths, down 10MHz. Capacitors form decoupling network. Note location each component; relatively large 10µF tantalum capacitor, located near connector. Near much smaller 2200pF decoupling capacitor, reduces high-frequency interference. includes pads that facilitate simple termination input(s). MAX2470 kit, provide high-frequency filtering prevent excess noise from coupling into MAX2470 kit, jumper selects state HI/LO input MAX2470. Selecting "LO" setting optimizes MAX2470 input frequencies from 10MHz 200MHz. Selecting "HI" setting optimizes MAX2470 input frequencies from 10MHz 500MHz.
Connections Setup
Verify power supply less than +5.5V before connecting supply kit. good starting point +3.0V. Connect power supply between turn output power signal generator -20dBm 200MHz. Disable output, then connect output signal generator connector MAX2470 board. MAX2471, balun between signal generator differential inputs IN).
MAX2470/MAX2471 Evaluation Kits Evaluate: MAX2470/MAX2471
2200pF 2200pF 2200pF
10µF
2200pF
MAX2470 MAX2471
2200pF (HI/LO)
2200pF
HI/LO
MAX2470
Figure MAX2470/MAX2471 Schematic
MAX2470/MAX2471 Evaluation Kits Evaluate: MAX2470/MAX2471
1.0"
Figure MAX2470/MAX2471 Component Placement Guide-Component Side
1.0"
Figure MAX2470/MAX2471 Board Layout- Ground Plane
1.0"
Figure MAX2470/MAX2471 Board Layout- Component 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 1999 Maxim Integrated Products Printed registered trademark Maxim Integrated Products.
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