參數(shù)資料
型號: VCA822IDGS
廠商: Texas Instruments, Inc.
英文描述: Wideband, > 40dB Gain Adjust Range, Linear in V/V VARIABLE GAIN AMPLIFIER
中文描述: 寬帶,“40dB的增益調(diào)整范圍在V,線性音頻/視頻可變增益放大器
文件頁數(shù): 16/35頁
文件大小: 837K
代理商: VCA822IDGS
www.ti.com
-
35
-
40
-
45
-
50
-
55
-
60
-
65
-
70
-
75
-
80
Frequency (MHz)
Figure 63.
H
0.1
1
10
100
V = +1V
A
VMAX
= +100V/V
V = 2V
PP
R = 100
W
2nd-Harmonic
3rd-Harmonic
-
40
-
45
-
50
-
55
-
60
-
65
-
70
-
75
-
80
-
85
-
90
Resistance ( )
Figure 64.
W
H
100
1k
V = +1V
A
VMAX
= +100V/V
V
O
= 2V
PP
f = 20MHz
3rd-Harmonic
2nd-Harmonic
-
30
-
40
-
50
-
60
-
70
-
80
Gain Control Voltage (V)
H
-
0.6
-
0.4
-
0.2
0
0.2
0.4
0.6
0.8
1.0
V = 2V
= +100V/V
PP
A
VMAX
R = 100
W
f = 20MHz
2nd-Harmonic
3rd-Harmonic
Maximum Current Through R Limited
-
40
-
45
-
50
-
55
-
60
-
65
Output Voltage Swing (V
Figure 65.
)
PP
H
0.1
1
10
V = 1V
A
VMAX
= +100V/V
R = 100
W
f = 20MHz
PP
3rd-Harmonic
2nd-Harmonic
33
31
29
27
25
23
21
19
17
15
Frequency (MHz)
Figure 67.
I
5
10
15
20
25
30
35
40
45
50
55
60
65
70
At 50
Matched Load
W
31
29
27
25
23
21
19
17
15
Gain Control Voltage (V)
Figure 68.
I
-
0.6
-
0.4
-
0.2
0
0.2
0.4
0.6
0.8
1.0
Constant Input Voltage
Constant Output Voltage
At 50
Matched Load
W
VCA822
SBOS343A–SEPTEMBER 2007–REVISED OCTOBER 2007
TYPICAL CHARACTERISTICS: V
S
= ±5V, A
VMAX
= +100V/V (continued)
At T
= +25
°
C, R
= 100
, R
= 845
, R
G
= 16.9
, V
G
= +1V, V
IN
= single-ended input on +V
IN
with –V
IN
at ground, and
SO-14 package, unless otherwise noted.
HARMONIC DISTORTION vs FREQUENCY
HARMONIC DISTORTION vs LOAD RESISTANCE
HARMONIC DISTORTION vs
OUTPUT VOLTAGE
HARMONIC DISTORTION vs
GAIN CONTROL VOLTAGE
Figure 66.
TWO-TONE, 3RD-ORDER
INTERMODULATION INTERCEPT
TWO-TONE, 3RD-ORDER INTERMODULATION INTERCEPT
vs GAIN CONTROL VOLTAGE (f
IN
= 20MHz)
16
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Product Folder Link(s):
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