VCA810_16 Datasheet, PDF (12/40 Pages) Texas Instruments – VCA810 High Gain Adjust Range, Wideband and Variable Gain Amplifier

VCA810
SBOS275G – JUNE 2003 – REVISED DECEMBER 2015
www.ti.com
Typical Characteristics (continued)
At R_L = 500 Ω and V_IN = single-ended input on V+ with V− at ground, V_S = ±5 V, unless otherwise noted.
-30
-35
V_O = 1V_PP
R_L = 500W
-40
-20
G = 0dB, Third Harmonic
-30
G = 0dB, Third Harmonic
-45
-40
-50
G = +40dB, Third Harmonic
-50
-55
G = +40dB, Second Harmonic
-60
-60
G = +40dB, Third Harmonic
G = +40dB, Second Harmonic
-65
-70
-75
0.1
G = 0dB, Second Harmonic
1
10
Frequency (MHz)
Figure 7. Harmonic Distortion vs Frequency
-20
f = 1MHz
-30 R_L = 500W
G = 0dB, Third Harmonic
-40
-50
G = +40dB, Second Harmonic
f = 1MHz
-70 _{VO = 1VPP}
R_L = 500W
-80
100
G = 0dB, Second Harmonic
1000
Load (W)
Figure 8. Harmonic Distortion vs R_LOAD
-20
-30
Third Harmonic
-40
f = 1MHz
V_O = 1V_PP
R_L = 500W
-60
-50
-70
-80
-90
-100
G = +40dB, Third Harmonic
G = 0dB, Second Harmonic
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Output Voltage (V_PP)
Figure 9. Harmonic Distortion vs Output Voltage
10
Input Output
Limited Limited
Max Useful
1 Input Voltage Range
Max Useful
Output Voltage
Range
-60
Second Harmonic
-70
-80
0
5 10 15 20 25 30 35 40
Gain (dB)
Figure 10. Harmonic Distortion vs Gain
-20
f = 1MHz
-30
V_IN = 1V_PP
R_L = 500W
-40
Third Harmonic
-50
0.1
Resulting
Output Voltage
Resulting
Input Voltage
Input and Output Measured at 1dB Compression
0.01
-40 -30 -20 -10 0 10 20 30 40
Gain (dB)
Figure 11. Input, Output Range vs Gain
-60
Second Harmonic
-70
-80
-40 -35 -30 -25 -20 -15 -10 -5 0
Attenuation (dB)
Figure 12. Harmonic Distortion vs Attenuation
12
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