51k鈩?/div>
卤5%
resistor
Quick Start
The MAX2247 EV kit is fully assembled and factory test-
ed. Follow the instructions in the
Connections and
Setup
section for proper device evaluation.
Test Equipment Required
Table 1 lists the required test equipment to verify
MAX2247 operation. It is intended as a guide only, and
some substitutions are possible.
Connections and Setup
This section provides a step-by-step guide to operating
the EV kit and testing the device鈥檚 functions. Do not turn
on DC power or RF signal generators until all connec-
tions are made.
Testing the Supply Current
1) Connect a 20dB attenuator to the OUT SMA con-
nector on the EV kit. This prevents overloading of
the power sensor and power meter.
2) Connect a DC supply set to +3.3V (through an amme-
ter, if desired) and connect a voltmeter to the EV kit鈥檚
VCC and GND terminals. Do not turn on the supply.
3) Connect an RF signal generator to the IN SMA con-
nector. Calibrate the generator to produce an
802.11b compatible -10dBm signal, at 2.45GHz
output frequency. Do not turn on the output.
4) Connect the power sensor to the power meter.
Calibrate the power sensor for 2.45GHz. Set the
power meter offset to compensate the 20dB attenua-
tor, the coupler, and any cable loss (from 0.5dB to
2dB), and circuit board losses (approximately 0.3dB).
Component Suppliers
SUPPLIER
EFJohnson
Kamaya
Murata
Taiyo Yuden
Toko
PHONE
402-474-4800
260-489-1533
800-831-9172
800-348-2496
800-715-8656
FAX
402-474-4858
260-489-2261
814-238-0490
408-434-0375
408-943-9790
________________________________________________________________
Maxim Integrated Products
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For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.
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