MAX2247EVKIT Maxim Integrated Products, MAX2247EVKIT Datasheet - Page 2

• Manufacturer Part Number: MAX2247EVKIT
• Description: RF Modules & Development Tools MAX2247 EVAL KIT MAX2247 EVAL KIT
• Manufacturer: Maxim Integrated Products

Specifications of MAX2247EVKIT

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5) Connect the power sensor to the coupler. Connect
6) Place the SHDN jumper in the ON position.
7) Turn on the DC supply. The idle current should read
8) Activate the RF generator output. Set the RF gener-
This evaluation kit can be easily modified for P
+21dBm, +18dBm, and +15dBm applications by
changing the position of C3 and the bias current and
removing C33. (See Table 2 and Applications Notes.)
MAX2247 Evaluation Kit
Table 1. Test Equipment Required
2
Power Supply
RF Signal Generator
RF Power Sensor
20dB High-Power
Attenuator
Power Meter
Coupler
RF Spectrum
Analyzer
Ammeter/Voltmeter
50Ω SMA Cables
Network Analyzer
(Optional)
one of the remaining terminals of the coupler to the
20dB high-power attenuator and another end to the
spectrum analyzer.
approximately 250mA.
ator’s output to produce a reading of +23dBm on
the power meter. Adjust the supply voltage so that
the voltmeter reads +3.3V. Adjust the output of the
generator until the power meter reads +24dBm.
_______________________________________________________________________________________
• The supply current should increase to approxi-
• The ACPR/ALT measurements should meet the
EQUIPMENT
mately 315mA.
MAX2247 EC table specifications.
QTY
Lower Power Applications
1
1
1
1
1
1
1
2
2
1
Capable of delivering up to 500mA at +2.7V to +3.6V
Capable of delivering +10dBm of output power up to 2.5GHz with 802.11b-compatible source
Capable of handling +20dBm of output power at the operating frequency (HP 8482A, or equivalent)
—
Capable of handling +20dBm of output power at the operating frequency (HP EPM-441A, or
equivalent)
Capable of operating at the desired frequency
Capable of measuring ACPR/ALT and covering the MAX2247’s operating frequency range
(Rohde and Schwarz FSEA20, or equivalent)
—
—
For measuring small-signal return loss and gain
OUT
=
The EV kit’s PC board can serve as a guide for laying
out a board using the MAX2247.
Keep RF signal lines as short as possible to minimize
losses and radiation. Always use controlled impedance
lines on all high-frequency inputs and outputs, and use
low-inductance connections to ground on all GND pins.
Each V
decoupling capacitor. Using a star topology for the
supply layout, in which each V
has a separate connection to a central V
further minimize coupling between the sections of the
IC. (Refer to the MAX2247 data sheet.)
Table 2. EV Kit Modifications for P
+21dBm, +18dBm, and +15dBm Applications
P
OUT
DESCRIPTION
+21
+18
+15
CC
(dBm)
node on the PC board should have its own
C3 LOCATION
7
6
6
CC
_ node on the circuit
6.1kΩ (135mA)
12kΩ (75mA)
13kΩ (65mA)
CC
OUT
R1 (I
Layout
node, can
BIAS
=
)