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VCA810 データシートの表示(PDF) - Texas Instruments

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VCA810 High Gain Adjust Range, Wideband and Variable Gain Amplifier Texas-Instruments
Texas Instruments Texas-Instruments
VCA810 Datasheet PDF : 40 Pages
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www.ti.com
VCA810
SBOS275G – JUNE 2003 – REVISED DECEMBER 2015
7.7 Typical Characteristics
At RL = 500 and VIN = single-ended input on V+ with Vat ground, VS = ±5 V, unless otherwise noted.
60
VIN = 10mVPP, VOUT = 1VPP
40
VIN = 100mVPP, VOUT = 1VPP
20
VIN = 1VPP, VOUT = 1VPP
0
VOUT = 2VPP, VIN = 200mVPP
-20
VOUT = 2VPP, VIN = 20mVPP
-40
-60
1
10
100
Frequency (MHz)
1000
Figure 1. Small-Signal Frequency Response
150
G = -20dB
100
VIN = 2VPP
50
G = -40dB
0
-50
-100
-150
Time (20ns/div)
Figure 3. Attenuated Pulse Response
1.2
G = 0dB to -40dB, VIN = 1VDC
1.0
0.8
0.6
0.4
0.2
0
-0.2
G = 0dB to +40dB, VIN = 10mVDC
Time (20ns/div)
Figure 5. Gain Control Pulse Response
3
RL = 500W
0
-3
-6
-9
-12
-15
VC = -1VDC + 10mVPP
-18
1
10
100
Frequency (MHz)
Figure 2. Gain Control Frequency Response
0.6
G = +40dB
0.4
VIN = 10mVPP
0.2
G = +20dB
0
-0.2
-0.4
-0.6
Time (20ns/div)
Figure 4. High Gain Pulse Response
60
Specified Operating Range
40
20
0
-20
-40
-60
Output Disabled for
-80
+0.15V £ VC £ +2V
-100
0.5
0
-0.5 -1.0 -1.5 -2.0 -2.5
Control Voltage, VC (V)
Figure 6. Gain vs Control Voltage
Copyright © 2003–2015, Texas Instruments Incorporated
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