Datasheet

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SBOS316D − JULY 2005 − REVISED OCTOBER 2008
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6
TYPICAL CHARACTERISTICS
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 1
GAIN vs V
CNTL
(Lo VGA Gain)
V
CNTL
(V)
0
0.1
Gain (dB)
60
55
50
45
40
35
30
25
20
15
10
5
0
−
5
−10
−
15
−
20
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 01
LNP 00
Figure 2
GAIN vs V
CNTL
(Hi VGA Gain)
V
CNTL
(V)
0
0.1
Gain (dB)
65
60
55
50
45
40
35
30
25
20
15
10
5
0
−
5
−
10
−
15
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 01
LNP 00
Figure 3
GAIN ERROR vs V
CNTL
(Lo VGA Gain)
V
CNTL
(V)
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
Gain (dB)
2.0
1.5
1.0
0.5
0
−
0.5
−
1.0
−
1.5
−
2.0
LNP 00
LNP 01
LNP 10
LNP 11
Figure 4
GAIN ERROR vs V
CNTL
(Hi VGA Gain)
V
CNTL
(V)
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
Gain (dB)
2.0
1.5
1.0
0.5
0
−
0.5
−
1.0
−
1.5
−
2.0
LNP 00
LNP 01
LNP 10
LNP 11
Figure 5
GAIN ERROR vs V
CNTL
V
CNTL
(V)
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
Gain Error (dB)
2.0
1.5
1.0
0.5
0
−
0.5
−
1.0
−
1.5
−
2.0
1MHz
2MHz
5MHz
10MHz
Figure 6
GAIN ERROR vs V
CNTL
vs TEMPERATURE
V
CNTL
(V)
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
Gain Error (dB)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
−
0.2
−
0.4
−
0.6
−
0.8
−
1.0
−
1.2
−
1.4
−
1.6
−
1.8
−
2.0
+25
_
C
−
40
_
C
+85
_
C