Datasheet

-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
-95
Frequency(MHz)
HarmonicDistortion(dBc)
0.1 1 10 100
V =+2V
G
A =6dB
VMAX
V =2V
O PP
R =100W
L
2nd-Harmonic
3rd-Harmonic
-60
-65
-70
-75
-80
-85
Resistance( )W
HarmonicDistortion(dBc)
100 1k
V =+2V
G
A =6dB
VMAX
V =2V
O PP
f=20MHz
2nd-Harmonic
3rd-Harmonic
-50
-55
-60
-65
-70
-75
-80
OutputVoltageSwing(V )
PP
HarmonicDistortion(dBc)
0.1 1 10
V =+2V
G
A =6dB
VMAX
R =100W
L
f=20MHz
2nd-Harmonic
3rd-Harmonic
-40
-45
-50
-55
-60
-65
-70
GainControlVoltage(V)
HarmonicDistortion(dBc)
0.8 2.0
MaximumCurrentThroughR Limited
G
2nd-Harmonic
1.0 1.2 1.4 1.6 1.8
3rd-Harmonic
V =2V
A =6dB
R =100
f=20MHz
O PP
VMAX
L
W
45
40
35
30
25
20
Frequency(V)
InterceptPoint(+dBm)
0 10 20 30 40 50 60 70
At50 MatchedLoadW
GainControlVoltage(V)
0.8 1.0 1.2 1.4 1.6 1.8 2.0
InterceptPoint(+dBm)
40
38
36
34
32
30
20
ConstantInputVoltage
ConstantOutputVoltage
f=20MHz
At50 MatchedLoadW
28
26
24
22
VCA820
SBOS395C –OCTOBER 2007–REVISED OCTOBER 2009............................................................................................................................................ www.ti.com
TYPICAL CHARACTERISTICS: V
S
= ±5V, A
VMAX
= 6dB (continued)
At T
A
= +25°C, R
L
= 100Ω, R
F
= 1.33kΩ, R
G
= 1.33kΩ, V
G
= +2V, V
IN
= single-ended input on +V
IN
with –V
IN
at ground, and
SO-14 package, unless otherwise noted.
HARMONIC DISTORTION vs FREQUENCY HARMONIC DISTORTION vs LOAD RESISTANCE
Figure 19. Figure 20.
HARMONIC DISTORTION vs OUTPUT VOLTAGE 20MHz HARMONIC DISTORTION vs GAIN CONTROL VOLTAGE
Figure 21. Figure 22.
2-TONE, 3RD-ORDER INTERMODULATION INTERCEPT
2-TONE, 3RD-ORDER INTERMODULATION INTERCEPT vs GAIN CONTROL VOLTAGE
Figure 23. Figure 24.
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