Datasheet
-60
-65
-70
-75
-80
-85
-90
Frequency(MHz)
HarmonicDistortion(dBc)
0.1 1 10 100
A =6dB
VMAX
V =+2V
G
V =2V
O PP
R =100W
L
2ndHarmonic
3rdHarmonic
-60
-65
-70
-75
-80
-85
-90
Resistance( )W
HarmonicDistortion(dBc)
100 1k
2ndHarmonic
3rdHarmonic
A =6dB
VMAX
V =+2V
V =2V
f=20MHz
G
O PP
GainControlVoltage(V)
0.8 1.0 1.2 2.0
HarmonicDistortion(dBc)
-10
-20
-30
-40
-50
-60
-70
-80
-90
1.4 1.6 1.8
MaximumCurrentThroughR Limited
G
3rdHarmonic
2ndHarmonic
A =6dB
VMAX
V =2V
O PP
R =100W
L
f=20MHz
-30
-35
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
OutputVoltageSwing(V )
PP
HarmonicDistortion(dBc)
0.1 1 10
A =6dB
VMAX
V =+2V
G
R =100W
L
f=20MHz
2ndHarmonic
3rdHarmonic
MaximumCurrent
ThroughR Limited
G
38
36
34
32
30
28
26
24
Frequency(MHz)
InterceptPoint(+dBm)
0 10 20 30 40 50 60 70 80 90 100
At50 MatchedLoadW
GainControlVoltage(V)
0.8 1.0 2.0
InterceptPoint(+dBm)
40
35
30
25
20
15
10
1.2 1.4 1.6 1.8
ConstantInputVoltage
ConstantOutputVoltage
f=20MHz
At50 MatchedLoadW
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 Ω , R
F
= 453 Ω , R
G
= 453 Ω , 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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