Datasheet

-50
-55
-60
-65
-70
-75
-80
-85
Frequency(MHz)
HarmonicDistortion(dBc)
0.1 1 10 100
A =20dB
VMAX
V =+2V
G
V =2V
O PP
R =100W
L
2ndHarmonic
3rdHarmonic
-66
-68
-70
-72
-74
-76
-78
-80
Resistance( )W
HarmonicDistortion(dBc)
100 1k
2ndHarmonic
3rdHarmonic
A =20dB
VMAX
V =+2V
G
V
O PP
=1V
f=20MHz
GainControlVoltage(V)
0.6 0.8 2.0
HarmonicDistortion(dBc)
-10
-20
-30
-40
-50
-60
-70
-80
-90
1.0 1.2 1.4 1.6 1.8
3rdHarmonic
2ndHarmonic
A =20dB
VMAX
V =2V
O PP
R =100W
L
f=20MHz
MaximumCurrentthrough
R Limited.
G
-20
-30
-40
-50
-60
-70
-80
-90
OutputVoltageSwing(V )
PP
HarmonicDistortion(dBc)
0.1 1 10
A =+10V/V
VMAX
V =+2V
G
R
L
=100W
f=20MHz
2ndHarmonic
3rdHarmonic
MaximumCurrent
ThroughR Limited
G
37
35
33
31
29
27
Frequency(MHz)
InterceptPoint(+dBm)
0 10 20 30 40 50 60 70 80 90 100
V =+2V
At50 MatchedLoadW
G
GainControlVoltage(V)
0.8 1.0 2.0
InterceptPoint(+dBm)
40
35
30
25
20
15
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
= 20dB (continued)
At T
A
= +25 ° C, R
L
= 100 Ω , R
F
= 402 Ω , R
G
= 80 Ω , V
G
= +2V, and V
IN
= single-ended input on +V
IN
with – V
IN
at ground, unless
otherwise noted.
HARMONIC DISTORTION vs HARMONIC DISTORTION vs
FREQUENCY LOAD RESISTANCE
Figure 39. Figure 40.
HARMONIC DISTORTION vs HARMONIC DISTORTION vs
OUTPUT VOLTAGE GAIN CONTROL VOLTAGE
Figure 41. Figure 42.
TWO-TONE, 3RD-ORDER INTERMODULATION INTERCEPT
TWO-TONE, 3RD-ORDER vs
INTERMODULATION INTERCEPT GAIN CONTROL VOLTAGE
Figure 43. Figure 44.
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