MAXIM MAX2204 Technical data
General Description
The MAX2204 RF power detector is designed to operate from 450MHz to 2.5GHz. The device is ideal for
wideband code-division multiple access (WCDMA),
cdma2000
®
, and high-speed downlink/uplink packet
access. The MAX2204 accepts an RF signal at the
input, and outputs a highly repeatable voltage. The output voltage increases monotonically with increasing
input power. The device is designed to compensate for
temperature and process shifts, reducing the typical
output variation to less than ±0.5dB at full input power
and ±1.5dB at the lower power.
The MAX2204 features a detection range from -16dBm
to +5dBm. High input impedance allows for low-loss
resistive tap if an isolator is used. The device uses
external termination at the input so that the RF signal
from several directional couplers can be connected to
a single detector chip.
The MAX2204 operates from a 2.7V to 3.3V power
supply. The device is available in a tiny 5-pin SC70 package. Electrical performance is guaranteed over a -40°C to
+85°C temperature range.
Applications
WCDMA, cdma2000
High-Speed Downlink Packet Access (HSDPA)
High-Speed Uplink Packet Access (HSUPA)
Features
o -16dBm to +5dBm Detection Range
o ±0.3dB Detection Error Due to Temperature
o +2.7V to +3.3V Single-Supply Operation
o Easy-to-Assemble, Lead-Free, 5-Pin SC70
Package
MAX2204
RF Power Detector
________________________________________________________________
Maxim Integrated Products
1
Pin Configuration
Ordering Information
19-0753; Rev 0; 4/07
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 package.
cdma2000 is a registered trademark of Telecommunications
Industry Association.
EVALUATION KIT
AVAILABLE
PART TEMP RANGE
MAX2204EXK+ -40°C to +85°C 5 SC70 X5+1
PINPACKAGE
PKG
CODE
TOP VIEW
GND
+
1 5 OUTVCC
2
MAX2204
34
ENARFIN
MAX2204
RF Power Detector
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(VCC= 2.7V to 3.3V, TA= -40°C to +85°C, ENA = 2.0V, no RF signal applied. Typical values are at VCC= 2.85V, TA= +25°C, unless
otherwise noted.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Note 1: Specifications over TA= -40°C to +85°C are guaranteed by design. Production tests are performed at TA= +25°C.
Note 2: Guaranteed by design and characterization.
V
CC
to GND ...........................................................-0.3V to +3.6V
OUT, Logic Input (ENA) to GND ................-0.3V to (V
CC
+ 0.3V)
RF Input Power ...............................................................+10dBm
Continuous Power Dissipation (T
A
= +70°C)
(derate 3.1mW/°C above +70°C)................................247mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
θ
JC
...............................................................................+115°C/W
θ
JA
...............................................................................+324°C/W
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage VCC 2.7 3.3 V
Operating Supply Current ICC 1.2 2.5 mA
Sleep Mode Supply Current ENA = 0V 0.5 10 µA
ENA Logic-High Threshold VIH 2 V
ENA Logic-Low Threshold VIL 0.6 V
ENA = 2V -2 +10
ENA Input Current
ENA = 0.6V -2 +1
µA
AC ELECTRICAL CHARACTERISTICS
(MAX2204 Evaluation Kit, VCC= 2.85V, TA= -40°C to +85°C, ENA = 2.0V. fRF= 450MHz to 2.5GHz. Typical values are at VCC= 2.85V,
T
A
=+25°C, unless otherwise noted.) (Note 1)
Note: This part is not for automotive applications.
CAUTION! ESD SENSITIVE DEVICE
RF Input Frequency 450 2500 MHz
RF Input Level for 2.0V
Minimum Input Level
Power Detector Accuracy Due to
Temperature
In-Band Variation
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
= +25°C, RFIN at 836MHz 3.3 4.8 6.3
T
A
T
= +25°C, RFIN at 1880MHz 1.9 3.4 4.9
A
-16dBm to -15dBm change in P
(836MHz to 2500MHz)
= 2.85V,
V
CC
836MHz to 1880MHz
= -40°C to +85°C
T
A
(Note 2)
824MHz to 849MHz 0.1
1850MHz to 1980MHz 0.2
IN
PIN for 2.0V output ±0.5 ±1.1
for 0.1V output ±1.5 ±4
P
IN
814 mV
dBm
dB
dB
MAX2204
RF Power Detector
_______________________________________________________________________________________
3
Typical Operating Characteristics
(MAX2204 Evaluation Kit, typical values are at VCC= 2.85V, ENA = 2.0V, TA= +25°C, modulation equals CW, unless otherwise noted.)
OUTPUT VOLTAGE vs. INPUT POWER
2.5
f = 836MHz
2.0
VCC = 2.7V, 3.0V, 3.3V
1.5
(V)
OUT
V
1.0
0.5
0
-20 -15 -10 -5 0 5 10
PIN (dBm)
DETECTOR ERROR FROM
= +25°C AT 824MHz
T
1.5
1.0
0.5
A
f = 824MHz
TA = -40°C
MAX2204 toc01
MAX2204 toc04
OUTPUT VOLTAGE vs. INPUT POWER
3.0
f = 1950MHz
2.5
VCC = 2.7V, 3.0V, 3.3V
2.0
(V)
1.5
OUT
V
1.0
0.5
0
-20 -15 -10 -5 0 5 10
PIN (dBm)
DETECTOR ERROR FROM
= +25°C AT 849MHz
T
f = 849MHz
A
TA = -40˚C
1.5
1.0
0.5
MAX2204 toc02
MAX2204 toc05
1.5
1.0
0.5
0
ERROR (dB)
-0.5
-1.0
-1.5
1.5
1.0
0.5
DETECTOR ERROR FROM
= +25°C AT 450MHz
T
A
f = 450MHz
TA = -40°C
TA = +85°C
-20 -15 -10 -5 0 5 10
PIN (dBm)
DETECTOR ERROR FROM
= +25°C AT 1850MHz
T
A
f = 1850MHz
TA = -40°C
MAX2204 toc03
MAX2204 toc06
0
ERROR (dB)
-0.5
-1.0
-1.5
-20 -15 -10 -5 0 5 10
TA = +85°C
PIN (dBm)
DETECTOR ERROR FROM
T
1.5
1.0
0.5
0
ERROR (dB)
-0.5
-1.0
-1.5
-20 -15 -10 -5 0 5 10
A
f = 1910MHz
ERROR (dB)
= +25°C AT 1910MHz
TA = -40°C
TA = +85°C
PIN (dBm)
0
-0.5
-1.0
-1.5
-20 -15 -10 -5 0 5 10
MAX2204 toc07
TA = +85˚C
PIN (dBm)
0
ERROR (dB)
-0.5
-1.0
-1.5
-20 -15 -10 -5 0 5 10
DETECTOR ERROR FROM
= +25°C AT 2500MHz
T
1.5
1.0
0.5
0
ERROR (dB)
-0.5
-1.0
-1.5
-20 -15 -10 -5 0 5 10
A
TA = -40°C
TA = +85°C
f = 2500MHz
PIN (dBm)
TA = +85°C
P
(dBm)
IN
MAX2204 toc08
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