Datasheet

Evaluates: MAX2830
MAX2830 Evaluation Kit
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Quick Start
The MAX2830 EV kit is fully assembled and factory test-
ed. Follow the instructions in the
Connections and
Setup
section to test the devices.
Test Equipment Required
This section lists the recommended test equipment to
verify the operation of the MAX2830. It is intended as a
guide only and substitutions may be possible:
DC supply capable of delivering +5V and 200mA of
continuous current
DC supply capable of delivering -5V and 200mA of
continuous current
DC supply capable of delivering +3.3V and 300mA of
continuous current
DC supply capable of delivering +2.85V and 200mA
of continuous current
Two HP8648s or equivalent signal sources capable
of generating 0dBm up to 3GHz
802.11b/g OFDM I/Q waveform generator
HP8561E or equivalent RF spectrum analyzer with a
minimum 100kHz to 3GHz frequency range
TDS3012 or equivalent oscilloscope with 200MHz
bandwidth
HP437B power meter and power head
IBM PC or PC-compatible computer with Windows
®
95/98/2000/XP (or later) operating system with an
available parallel port
Female-to-male 25-pin parallel straight-through cable
RF coupler
Connections and Setup
This section provides step-by-step instructions for getting
the EV kit up and running in all modes:
1) Install and run the MAX2830 control software, available
for download at www.maxim-ic.com/evkitsoftware.
2) To control the EV kit through the 3-wire interface,
connect the male-to-female 25-pin parallel cable
between the PC and the EV kit.
3) With the power supply turned off, connect a +2.85V
power supply to VREG (pin 1, I), VCCVCO (pins
2-3, GG), and VCCAUX, and a +3.3V power supply
to VBAT. Connect the power-supply ground to the
header labeled GND1 or GND2.
4) With the power supply turned off, connect a +5V
power supply to the +5V pin and a -5V power sup-
ply to the -5V pin. Connect the power-supply
ground to the header labeled GND1 or GND2.
Connect all the power-supply grounds together.
5) Turn on the +3.3V power supply, followed by the
+2.85V power supply, +5V power supply, and -5V
power supply.
Receive Mode
1) Set the RXTX jumper across pins 2-3 (RX) to enable
the receiver and disable the transmitter. Set the
ANTSEL jumper across pins 2-3 (ANT1) to connect
the receiver to the ANT1 port, or pins 1-2 (ANT2) to
connect the receiver to the ANT2 port.
2) Use the power meter to calibrate the RF signal
generator to deliver -100dBm at 2438MHz. After cal-
ibration, turn the RF signal generator off, disconnect
it from the power meter, and connect it to the ANT1
or ANT2 port of the MAX2830 EV kit.
3) On the register-setting page of the EV kit software,
set the register setting to the recommended setting in
the MAX2830 data sheet by clicking the “send all”
button. On the entry page, confirm that the receive
mode is set to “normal,” baseband filter is set to “RX,”
and the RF frequency is tuned to 2437MHz. Maximize
the LNA gain and adjust the baseband gain using the
RX VGA gain setting to achieve 98dB of gain.
4) Connect the spectrum analyzer to either RXBBI or
RXBBQ. Set the center frequency to 1MHz with a
span of 500kHz.
5) Turn on the RF signal source. The output CW tone
at 1MHz should be approximately -2dBm.
Transmit Mode
1) Set the RXTX jumper across pins 1-2 (TX) to enable
the transmitter and disable the receiver. Set the
ANTSEL jumper across pins 1-2 (ANT2) to connect
the transmitter to the ANT2 port, or set pins 2-3
(ANT1) to connect the transmitter to the ANT1 port.
2) Connect a decoupler and a 10dB attenuator to the
ANT1 or ANT2 port. Connect the spectrum analyzer
and the power meter to the outputs of the decoupler.
3) Connect a 1MHz I/Q signal to TXBBI and TXBBQ. Set
the input amplitude of each channel to 100mV
RMS
.
4) On the register-setting page of the EV kit software,
set the register setting to the recommended register
setting listed in the MAX2830 data sheet. Make sure
that the transmitter mode is set to “normal,” base-
band filter is set to “TX,” and the RF frequency is
tuned to 2437MHz.
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