Datasheet

-35
-40
-45
-50
-55
-60
-65
-70
-75
-80
Frequency(MHz)
HarmonicDistortion(dBc)
0.1 1 10 100
V =+2V
G
A
VMAX
=40dB
V =2V
O PP
R =100W
L
2nd-Harmonic
3rd-Harmonic
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
Resistance( )W
HarmonicDistortion(dBc)
100 1k
V =+2V
G
A =40dB
VMAX
V
O
=2V
PP
f=20MHz
3rd-Harmonic
2nd-Harmonic
-40
-45
-50
-55
-60
-65
OutputVoltageSwing(V )
PP
HarmonicDistortion(dBc)
0.1 1 10
V =+2V
G
A
VMAX
=40dB
R =100W
L
f=20MHz
3rd-Harmonic
2nd-Harmonic
-35
-40
-45
-50
-55
-60
-65
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 =40dB
R =100
f=20MHz
O PP
VMAX
L
W
33
31
29
27
25
23
21
19
17
15
Frequency(MHz)
InterceptPoint(+dBm)
5 10 15 20 25 30 35 40 45 50 55 60 65 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)
35
30
25
20
15
10
0
ConstantInputVoltage
ConstantOutputVoltage
f=20MHz
At50 MatchedLoadW
5
VCA820
SBOS395C –OCTOBER 2007–REVISED OCTOBER 2009............................................................................................................................................ www.ti.com
TYPICAL CHARACTERISTICS: V
S
= ±5V, A
VMAX
= 40dB (continued)
At T
A
= +25°C, R
L
= 100Ω, R
F
= 845Ω, R
G
= 16.9Ω, 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 62. Figure 63.
HARMONIC DISTORTION vs OUTPUT VOLTAGE 20MHz HARMONIC DISTORTION vs GAIN CONTROL VOLTAGE
Figure 64. Figure 65.
2-TONE, 3RD-ORDER INTERMODULATION INTERCEPT
2-TONE, 3RD-ORDER INTERMODULATION INTERCEPT vs GAIN CONTROL VOLTAGE (f
IN
= 20MHz)
Figure 66. Figure 67.
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