Datasheet

-60
-65
-70
-75
-80
-85
-90
Frequency(MHz)
HarmonicDistortion(dBc)
0.1 1 10 100
A =6dB
VMAX
V =+2V
G
V =2V
O PP
R =100W
L
2ndHarmonic
3rdHarmonic
-60
-65
-70
-75
-80
-85
-90
Resistance( )W
HarmonicDistortion(dBc)
100 1k
2ndHarmonic
3rdHarmonic
A =6dB
VMAX
V =+2V
V =2V
f=20MHz
G
O PP
GainControlVoltage(V)
0.8 1.0 1.2 2.0
HarmonicDistortion(dBc)
-10
-20
-30
-40
-50
-60
-70
-80
-90
1.4 1.6 1.8
MaximumCurrentThroughR Limited
G
3rdHarmonic
2ndHarmonic
A =6dB
VMAX
V =2V
O PP
R =100W
L
f=20MHz
-30
-35
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
OutputVoltageSwing(V )
PP
HarmonicDistortion(dBc)
0.1 1 10
A =6dB
VMAX
V =+2V
G
R =100W
L
f=20MHz
2ndHarmonic
3rdHarmonic
MaximumCurrent
ThroughR Limited
G
38
36
34
32
30
28
26
24
Frequency(MHz)
InterceptPoint(+dBm)
0 10 20 30 40 50 60 70 80 90 100
At50 MatchedLoadW
GainControlVoltage(V)
0.8 1.0 2.0
InterceptPoint(+dBm)
40
35
30
25
20
15
10
1.2 1.4 1.6 1.8
ConstantInputVoltage
ConstantOutputVoltage
f=20MHz
At50 MatchedLoadW
VCA821
SBOS407B DECEMBER 2007 REVISED DECEMBER 2008 .......................................................................................................................................
www.ti.com
TYPICAL CHARACTERISTICS: V
S
= ± 5V, A
VMAX
= 6dB (continued)
At T
A
= +25 ° C, R
L
= 100 , R
F
= 453 , R
G
= 453 , 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 HARMONIC DISTORTION vs
FREQUENCY LOAD RESISTANCE
Figure 17. Figure 18.
HARMONIC DISTORTION vs HARMONIC DISTORTION vs
OUTPUT VOLTAGE GAIN CONTROL VOLTAGE
Figure 19. Figure 20.
TWO-TONE, 3RD-ORDER INTERMODULATION INTERCEPT
TWO-TONE, 3RD-ORDER vs
INTERMODULATION INTERCEPT GAIN CONTROL VOLTAGE
Figure 21. Figure 22.
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