Datasheet

-35
-40
-45
-50
-55
-60
-65
-70
Frequency(MHz)
HarmonicDistortion(dBc)
0.1 1 10 100
A =32dB
VMAX
V =+2V
G
V =2V
O PP
R =100W
L
2ndHarmonic
3rdHarmonic
-50
-55
-60
-65
-70
-75
-80
-85
Resistance(W)
HarmonicDistortion(dBc)
100 1k
2ndHarmonic
3rdHarmonic
A =32dB
VMAX
V =+2V
G
V
O PP
=1V
f=20MHz
GainControlVoltage(V)
0.6 0.8 2.0
HarmonicDistortion(dBc)
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
-60
1.0 1.2 1.4 1.6 1.8
MaximumCurrentThroughR Limited
G
3rdHarmonic
2ndHarmonic
A =32dB
VMAX
V =2V
O PP
R =100W
L
f=20MHz
-10
-20
-30
-40
-50
-60
-70
-80
OutputVoltageSwing(V )
PP
HarmonicDistortion(dBc)
0.1 1 10
A =32dB
VMAX
V =+2V
G
R
L
=100W
f=20MHz
2ndHarmonic
3rdHarmonic
MaximumCurrent
ThroughR Limited
G
34
32
30
28
26
24
22
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)
35
30
25
20
15
10
1.2 1.4 1.6 1.8
ConstantOutputVoltage
ConstantInputVoltage
f=20MHz
At50 MatchedLoadW
VCA821
SBOS407B – DECEMBER 2007 – REVISED DECEMBER 2008 ....................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS: V
S
= ± 5V, A
VMAX
= 32dB (continued)
At T
A
= +25 ° C, R
L
= 100 Ω , R
F
= 402 Ω , R
G
= 18 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 60. Figure 61.
HARMONIC DISTORTION vs HARMONIC DISTORTION vs
OUTPUT VOLTAGE GAIN CONTROL VOLTAGE
Figure 62. Figure 63.
TWO-TONE, 3RD-ORDER INTERMODULATION INTERCEPT
TWO-TONE, 3RD-ORDER vs
INTERMODULATION INTERCEPT GAIN CONTROL VOLTAGE
Figure 64. Figure 65.
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