参数资料
型号: VCA2615RGZR
厂商: TEXAS INSTRUMENTS INC
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PQCC48
封装: 7 X 7 MM, GREEN, PLASTIC, QFN-48
文件页数: 31/33页
文件大小: 1122K
代理商: VCA2615RGZR
VCA2615
SBOS316D JULY 2005 REVISED OCTOBER 2008
www.ti.com
7
TYPICAL CHARACTERISTICS (continued)
All specifications at TA = +25°C, VDD = 5V, load resistance = 500 on each output to ground; the input to the preamp (LNP) is single-ended;
fIN = 5MHz, LNP Gain (G1, G2) = 10, H/L = 0, VCNTL = 2.5V; VCA output is 1VPP differential; CA, CB = 3.9F, unless otherwise noted.
Figure 7
0.5
6
0.4
9
0.4
2
GAIN MATCHING, CHA to CHB
V
CNTL =0.4V
DeltaGain(dB)
Un
it
s
60
50
40
30
20
10
0
0.3
5
0.2
8
0.
21
0.
1
4
0.
0
7
0.
00
0.0
7
0.2
1
0.1
4
0.
2
8
0.
35
0.
42
0.
49
Figure 8
0.5
3
0.4
7
0.4
1
GAIN MATCHING, CHA to CHB
V
CNTL =2.0V
DeltaGain(dB)
Un
it
s
60
50
40
30
20
10
0
0.3
5
0.
29
0.
23
0.
17
0.
1
0.
05
0.
0
1
0.1
3
0.0
7
0.
1
9
0.
25
0.
31
0.
37
Figure 9
25
20
15
10
5
0
5
GAIN vs FREQUENCY
(V
CNTL = 0.7V, Lo VGA Gain)
Frequency (MHz)
0.1
1
10
100
Ga
in
(d
B
)
LNP = 10
LNP = 00
LNP = 11
LNP = 01
Figure 10
30
25
20
15
10
5
0
GAIN vs FREQUENCY
(V
CNTL = 0.7V, Hi VGA Gain)
Frequency (MHz)
0.1
1
10
100
Ga
in
(d
B
)
LNP = 11
LNP = 10
LNP= 00
LNP = 01
Figure 11
60
55
50
45
40
35
30
25
20
15
10
5
0
GAIN vs FREQUENCY
(V
CNTL =2.5V, Lo VGA Gain)
Frequency (MHz)
0.1
1
10
100
Ga
in
(d
B
)
LNP = 11
LNP = 10
LNP = 01
LNP = 00
Figure 12
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
GAIN vs FREQUENCY
(V
CNTL = 2.5V, Hi VGA Gain)
Frequency (MHz)
0.1
1
10
100
Ga
in
(d
B
)
LNP = 11
LNP = 10
LNP = 01
LNP = 00
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