RMS Power Detector
Typical Operating Characteristics
(V CC = 2.7V, T A = +25°C, WCDMA uplink DPCCH + 1DPDCH, log conformance calculation is referenced to a straight line that is
calibrated at -20dBm and 0dBm, unless otherwise noted.)
1.8
1.6
OUTPUT VOLTAGE vs. INPUT POWER
0.30
0.25
PCS WCDMA 1+1 vs. 1+5 RMS ERROR
(± DEVIATION FROM MIDPOINT)
0.30
0.25
CELL WCDMA 1 + 1 vs. 1 + 5 RMS ERROR
(± DEVIATION FROM MIDPOINT)
1.4
1.2
1.0
0.8
2GHz
0.20
0.15
0.10
T A = +25°C
T A = -20°C
0.20
0.15
0.10
T A = +85°C
0.6
0.4
0.2
800MHz
0.05
0
-0.05
T A = +85°C
0.05
0
-0.05
T A = +25°C
T A = -20°C
0
-35 -30 -25 -20 -15 -10
-5
0
5
10
-0.10
-30
-25
-20
-15
-10
-5
0
5
-0.10
-30
-25
-20
-15
-10
-5
0
5
0.5
INPUT POWER (dBm)
LOG CONFORMANCE WITH 1dB STEP
CELLULAR BAND
0.5
INPUT POWER (dBm)
LOG CONFORMANCE WITH 1dB STEP
PCS BAND
1.0
INPUT POWER (dBm)
LOG CONFORMANCE WITH 10dB STEP
CELLULAR BAND
0.4
0.3
0.4
0.3
0.8
0.6
4 CALIBRATION POINTS
-29dBm, -19dBm, -7dBm, -1dBm
0.2
0.1
MEAN
MEAN + 3s
0.2
0.1
MEAN
MEAN + 3s
0.4
0.2
MEAN + 3s
MEAN
0
0
0
-0.1
-0.2
MEAN - 3s
-0.1
-0.2
MEAN - 3s
-0.2
-0.4
MEAN - 3s
-0.3
-0.4
-0.3
-0.4
-0.6
-0.8
-0.5
-28 -25 -22 -19 -16 -13 -10
-7
-4
-1
-0.5
-28 -25 -22 -19 -16 -13 -10
-7
-4
-1
-1.0
-19
-16
-13
-10
-7
-4
-1
1.0
INPUT POWER (dBm)
LOG CONFORMANCE WITH 10dB STEP
PCS BAND
INPUT POWER (dBm)
1.5
INPUT POWER (dBm)
47-UNIT CELLULAR ROOM-COLD
TEMPERATURE ERROR
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
4 CALIBRATION POINTS
-29dBm, -19dBm, -7dBm, -1dBm
MEAN + 3s
MEAN
MEAN - 3s
1.0
0.5
0
-0.5
-1.0
-1.0
-19
-16
-13
-10
-7
-4
-1
-1.5
-30
-25
-20
-15
-10
-5
0
5
INPUT POWER (dBm)
INPUT POWER (dBm)
_______________________________________________________________________________________
3
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