Datasheet
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SBOS316D − JULY 2005 − REVISED OCTOBER 2008
www.ti.com
9
TYPICAL CHARACTERISTICS (continued)
All specifications at T
A
= +25°C, V
DD
= 5V, load resistance = 500Ω on each output to ground; the input to the preamp (LNP) is single-ended;
f
IN
= 5MHz, LNP Gain (G1, G2) = 10, H
/L = 0, V
CNTL
= 2.5V; VCA output is 1V
PP
differential; CA, CB = 3.9µF, unless otherwise noted.
Figure 19
1000
100
10
1
0.1
INPUT−REFERRED NOISE vs V
CNTL
(Hi VGA Gain, R
S
=0Ω)
V
CNTL
(V)
Noise (nV/
√
Hz)
0.2
0.3
0.4
0.5
0.6
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
LNP 11
LNP 10
LNP 00
LNP 01
Figure 20
100
10
1
NOISE FIGURE vs V
CNTL
(Lo VGA Gain, R
S
=0Ω)
V
CNTL
(V)
Noise Figure (dB)
0.2
0.3
0.4
0.5
0.6
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
LNP 11
LNP 10
LNP 00
LNP 01
Figure 21
100
10
1
NOISE FIGURE vs V
CNTL
(Hi VGA Gain, R
S
=0Ω)
V
CNTL
(V)
Noise Figure (dB)
0.2
0.3
0.4
0.5
0.6
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
LNP 11
LNP 10
LNP 00
LNP 01
Figure 22
1000
100
10
1
OUTPUT−REFERRED NOISE vs V
CNTL
(VGA Only, R
S
=0
Ω
)
V
CNTL
(V)
Noise (nV/√Hz)
0.2
0.3
0.4
0.5
0.6
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
Figure 23
1000
100
10
1
INPUT−REFERRED NOISE vs V
CNTL
(VGA Only)
V
CNTL
(V)
Noise (nV/√Hz)
0.2
0.3
0.4
0.5
0.6
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
High Gain
Lo Gain
Figure 24
10
1
INPUT−REFERRED NOISE vs FREQUENCY
(VGA Only)
Frequency (MHz)
110
Noise (nV/
√
Hz)