Datasheet
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SBOS316D − JULY 2005 − REVISED OCTOBER 2008
www.ti.com
11
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 31
−30
−35
−
40
−
45
−
50
−
55
−
60
−
65
−70
3rd−HARMONIC 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
Distortion (dB)
LNP 00
LNP 01
LNP 10
LNP 11
Figure 32
−
30
−
35
−
40
−
45
−
50
−
55
−60
−65
−70
2nd−HARMONIC 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
Distortion (dB)
LNP 00
LNP 10
LNP 01
LNP 11
Figure 33
−
30
−
35
−
40
−
45
−
50
−
55
−60
−65
−70
3rd−HARMONIC 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
Distortion (dB)
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
Distortion (dB)
3rd−Harmonic
2nd−Harmonic
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
Distortion (dB)
2nd−Harmonic
3rd−Harmonic
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
Distortion (dB)
2nd−Harmonic
3rd−Harmonic