RF Power Detector
Typical Operating Characteristics
(V CC = 2.8V, typical values are at T A = +25 N C, unless otherwise noted.)
10
1
0.1
0.01
OUTPUT VOLTAGE vs. INPUT POWER
(RF = 836MHz)
10
1
0.1
0.01
OUTPUT VOLTAGE vs. INPUT POWER
(RF = 1950MHz)
1
0.1
0.01
OUTPUT VOLTAGE vs. FREQUENCY
P IN = -5dBm
P IN = -10dBm
P IN = -15dBm
-25
-20
-15
-10
-5
0
-25
-20
-15
-10
-5
0
0
500
1000 1500 2000 2500 3000 3500
1.5
INPUT POWER (dBm)
ERROR DUE TO TEMPERATURE
(RF = 836MHz, 58 UNITS)
1.5
INPUT POWER (dBm)
ERROR DUE TO TEMPERATURE
(RF = 1950MHz, 58 UNITS)
0.16
INPUT FREQUENCY (MHz)
SIGMA OF -40°C ERROR
1.0
-40°C
1.0
0.14
0.12
0.5
0
-0.5
0.5
0
-0.5
-40°C
0.10
0.08
0.06
RF = 836MHz
-1.0
+85°C
-1.0
+85°C
0.04
0.02
RF = 1950MHz
-1.5
-1.5
0
-25
-20
-15
-10
-5
0
-25
-20
-15
-10
-5
0
-25
-20
-15
-10
-5
0
0.12
INPUT POWER (dBm)
SIGMA OF +85°C ERROR
0.5
INPUT POWER (dBm)
RESIDUAL ERROR AFTER ROOM
TEMPERATURE CALIBRATION
0.5
INPUT POWER (dBm)
RESIDUAL ERROR AFTER ROOM
TEMPERATURE CALIBRATION
0.10
0.08
0.06
0.04
RF = 1950MHz
0.4
0.3
0.2
0.1
0
-0.1
-0.2
RF = 836MHz, 58 UNITS, -40°C
0.4
0.3
0.2
0.1
0
-0.1
-0.2
RF = 836MHz, 58 UNITS, +85°C
0.02
0
RF = 836MHz
-0.3
-0.4
-0.5
-0.3
-0.4
-0.5
-25
-20
-15
-10
-5
0
-25
-20
-15
-10
-5
0
-25
-20
-15
-10
-5
0
INPUT POWER (dBm)
INPUT POWER (dBm)
INPUT POWER (dBm)
_______________________________________________________________________________________
3
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