TQM879026
0.7−4 GHz ¼W Digital Variable Gain Amplifier
Typical Performance TQM879026-PCB2140
Test conditions unless otherwise noted: VDD =+5V, Temp= +25°C, DSA at max. gain setting
Units
MHz
dB
Parameter
Frequency
Conditions
Typical Value
2110
32.6
18
2140
32.6
18
2170
32.6
18
Gain
Input Return Loss
Output Return Loss
Output P1dB
OIP3
dB
15
14
13
dB
23.8
42.8
1.6
23.9
42.5
1.6
24.0
43
dBm
dBm
dB
Pout= +11 dBm/tone, Δf=1 MHz
Noise figure
1.6
Performance Plots - TQM879026-PCB2140
Test conditions unless otherwise noted: VDD =+5V, Temp= +25°C
Gain vs. Frequency
Input Return Loss vs. Frequency
Output Return Loss vs. Frequency
39
36
33
30
27
0
-5
0
-5
+85°C
+25°C
40°C
+85°C
+25°C
40°C
+85°C
+25°C
40°C
-10
-15
-20
-25
-10
-15
-20
2110
2120
2130
2140
2150
2160
2170
2110
2120
2130
2140
2150
2160
2170
2110
2120
2130
2140
2150
2160
2170
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
OIP3 vs. Frequency
P1dB vs. Frequency
NF vs. Frequency
55
50
45
40
35
30
26
25
24
23
22
3
2.5
2
Pout=+11 dBm/tone
1 MHz tone spacing
+85°C
+85°C
+85°C
+25°C
+25°C
+25°C
−40°C
−40°C
−40°C
1.5
1
0.5
0
2110
2120
2130
2140
2150
2160
2170
2110
2120
2130
2140
2150
2160
2170
2110
2120
2130
2140
2150
2160
2170
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
Attenuation Accuracy vs. Attenuation
1
0.5
0
2170 MHz
-0.5
-1
2140 MHz
2110 MHz
0
5
10
15
20
25
30
35
Attenuation (dB)
Data Sheet: Rev B 12/14/2012
© 2012 TriQuint Semiconductor, Inc.
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Disclaimer: Subject to change without notice
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