General Description
The MAX2204 evaluation kit (EV kit) simplifies evalua-
tion of the MAX2204 RF power detector. The EV kit
enables testing of all functions with no additional sup-
port circuitry. The RF power-detector input uses a 50Ω
SMA connector on the evaluation board for convenient
connection to test equipment.
Features
o+2.7V to +3.3V Single-Supply Operation
o50ΩSMA RF Input Port Connector
oFully Assembled and Tested
Evaluates: MAX2204
MAX2204 Evaluation Kit
________________________________________________________________
Maxim Integrated Products
1
Component Suppliers
Ordering Information
19-0779; Rev 0; 3/07
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
+
Denotes a lead-free and RoHS-compliant EV kit.
Quick Start
Test Equipment Required
This section lists the recommended test equipment to
verify operation of the MAX2204. It is intended as a
guide only, and some substitutions are possible:
• One RF signal generator capable of delivering at
least +5dBm of output power at the operating
frequency (HPE4433B or equivalent)
• One RF power sensor capable of handling at least
+10dBm of output power at the operating frequen-
cy (HP 8482A or equivalent)
• One RF power meter capable of measuring up to
+10dBm of output power at the operating frequen-
cy (HP 437B or equivalent)
• An RF spectrum analyzer that covers the MAX2204
operating frequency range (e.g., FSEB20)
• A power supply capable of up to 10mA at +2.7V to
+3.3V
• A digital multimeter (DMM) for measuring output
voltage, supply current, and output current
•50ΩSMA cables
• A network analyzer (e.g., HP 8753D) to measure
input impedance (optional)
PART TEMP RANGE IC PACKAGE
MAX2204EVKIT+ -40°C to +85°C 5 SC70
Component List
DESIGNATION QTY DESCRIPTION
C1 1 220pF ±10% capacitor (0402)
Murata GRM155R71H221K
C2 1 27pF ±5% capacitor (0402)
Murata GRM155R71H270J
C3 1 22µF ±10% capacitor (1206)
Murata GRM31CR60J226K
C4 1 2200pF ±10% capacitor (0402)
Murata GRM155R71H222K
J1, J2 2 Inline headers
Sullins PEC36SAAN
J4 1
SMA end-launch jack receptacle,
0.062in
Johnson 142-0701-801
JP1 1 2-pin jumper block, single
Digi-Key S1012-36-ND
JP3 1 Test point, PC mini, red
Keystone 5000
R1 1 50Ω ±5% resistor (0402)
R2 1 0Ω ±5% resistor (0402)
U1 1 MAX2204EXK+ RF Power Detector
— 1 PCB: MAX2204 Evaluation Kit+
Note: Indicate that you are using the MAX2204 when contacting these component suppliers.
SUPPLIER PHONE WEBSITE
Johnson Components 507-833-8822 www.johnsoncomponents.com
Murata Mfg. Co., Ltd. 770-436-1300 www.murata.com
Evaluates: MAX2204
Connections and Setup
This section provides a step-by-step guide to operating
the EV kit and testing the device’s function. Caution:
Do not turn on the DC power or RF signal genera-
tors until all connections are made:
1) Set the jumper (JP1) on the EV kit to ON. This
enables the device.
2) Connect a DC supply set to +2.85V (through a
DMM, if desired) to the VCC and GND terminals on
the EV kit. If available, set the current limit to 10mA.
Do not turn on the supply.
3) Connect the output (J3) to a DMM to measure output
voltage.
4) Set the signal generator output to +5dBm,
f = 836MHz. Using the power meter, determine the
actual output power of the signal generator.
5) Connect the signal generator to the SMA connector.
Do not turn on the signal generator.
6) Turn on the DC supply; the supply current should
read approximately 1.3mA.
7) Activate the signal generator. The output voltage
should read approximately 2V.
Layout Issues
The MAX2204 is not particularly sensitive to the layout,
since it only needs 5dBm for maximum output voltage.
However, there are two areas that need attention: the
GND pin and the supply bypassing. Connect the GND
pin to PCB ground with a GND via as close as possible,
and place the supply bypassing capacitor close to the
part.
MAX2204 Evaluation Kit
2 _______________________________________________________________________________________
Figure 1. MAX2204 EV Kit Schematic
U1
MAX2204
C4
2200pF
C2
27pF
C1
220pF
R2
0Ω
VCC
VCC
3
2
JP1
1
1
2
3
4
5
J4
OUT
JP3
VCC
GND
RFIN
ENA
OUT
VCC
C3
22µF
J1
J2
R1
50Ω
Evaluates: MAX2204
MAX2204 Evaluation Kit
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________
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© 2007 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.
Janet Freed
Figure 2. MAX2204 EV Kit Component Placement Guide—Top
Silkscreen
1.0"
Figure 3. MAX2204 EV Kit Component Placement Guide—
Component Side
1.0"
Figure 4. MAX2204 EV Kit Component Placement Guide—
Secondary/Bottom Component Side
1.0"
