LMH2120_15 Datasheet, PDF (12/34 Pages) Texas Instruments – LMH2120 6 GHz Linear RMS Power Detector with 40 dB Dynamic Range

LMH2120
SNWS021C – JULY 2010 – REVISED FEBRUARY 2013
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Typical Performance Characteristics (continued)
Unless otherwise specified T_A = 25°C, V_BAT = 2.7V, RF_IN = 1900 MHz CW (Continuous Wave, unmodulated). Specified errors
are input referred.
Temperature Variation
vs.
RF Input Power at 1900 MHz
2.0
Temperature Variation (50 units) vs.
RF Input Power at 1900 MHz
2.0
1.5
1.5
1.0
85°C
0.5
1.0
85°C
0.5
0.0
0.0
-0.5
-40°C
-1.0
-0.5
-40°C
-1.0
-1.5
-1.5
-2.0
-50 -40 -30 -20 -10 0 10
RF INPUT POWER (dBm)
Figure 35.
-2.0
-50 -40 -30 -20 -10 0 10
RF INPUT POWER (dBm)
Figure 36.
1.5
1.2
0.9
0.6
0.3
0.0
-0.3
-0.6
-0.9
-1.2
-1.5
-50
1 dB Power Step Error vs.
RF Input Power at 1900 MHz
85°C
25°C
-40°C
-40 -30 -20 -10 0 10
RF INPUT POWER (dBm)
Figure 37.
10 dB Power Step Error vs.
RF Input Power at 1900 MHz
2.0
1.5
1.0
85°C
0.5
0.0
-0.5
-40°C
-1.0
-1.5
-2.0
-50 -40 -30 -20 -10
0
RF INPUT POWER (dBm)
Figure 38.
W-CDMA variation
vs.
RF Input Power at 1900 MHz
1.5
1.0
W-CDMA, REL8
0.5
0.0
W-CDMA, REL6
-0.5
W-CDMA, REL7
-1.0
-1.5
-50 -40 -30 -20 -10 0 10
RF INPUT POWER (dBm)
Figure 39.
LTE variation
vs.
RF Input Power at 1900 MHz
1.5
20 MHz, 100 RB
1.0
0.5
LTE, QPSK
0.0
-0.5
LTE, 16 QAM
-1.0
LTE, 64 QAM
-1.5
-50 -40 -30 -20 -10 0 10
RF INPUT POWER (dBm)
Figure 40.
12
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