参数资料
型号: VCA2615PFBR
厂商: TEXAS INSTRUMENTS INC
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PQFP48
封装: GREEN, PLASTIC, TQFP-48
文件页数: 3/33页
文件大小: 1122K
代理商: VCA2615PFBR
VCA2615
SBOS316D JULY 2005 REVISED OCTOBER 2008
www.ti.com
11
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 31
30
35
40
45
50
55
60
65
70
3rdHARMONIC DISTORTION vs V
CNTL
(Lo VGA Gain)
V
CNTL (V)
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
D
is
tor
ti
on
(d
B
)
LNP 00
LNP 01
LNP 10
LNP 11
Figure 32
30
35
40
45
50
55
60
65
70
2ndHARMONIC DISTORTION vs V
CNTL
(Hi VGA Gain)
V
CNTL (V)
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
D
is
tor
ti
on
(d
B
)
LNP 00
LNP 10
LNP 01
LNP 11
Figure 33
30
35
40
45
50
55
60
65
70
3rdHARMONIC DISTORTION vs V
CNTL
(Hi VGA Gain)
V
CNTL (V)
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
D
is
tor
ti
on
(d
B
)
LNP 00
LNP 01
LNP 10
LNP 11
Figure 34
30
35
40
45
50
55
60
65
70
DISTORTION vs VCA Output Voltage
VCA Output (V
PP)
0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0
Di
s
to
rt
io
n
(d
B
)
3rdHarmonic
2ndHarmonic
Figure 35
30
35
40
45
50
55
60
65
70
75
80
DISTORTION vs LNP Gain
(LNP Only)
LNP Gain (G1, G2)
00
01
10
11
Di
s
to
rti
o
n
(d
B
)
2ndHarmonic
3rdHarmonic
Figure 36
20
30
40
50
60
70
80
DISTORTION vs V
CNTL
(VGA Only, SE In/Diff Out, Lo Gain)
V
CNTL (V)
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
D
is
tor
ti
on
(d
B
)
2ndHarmonic
3rdHarmonic
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