Datasheet

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3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
20
NoiseFigure(dB)
Frequency(MHz)
1
10
R =
S
50W
R =200W
S
R =
S
400W
R =
S
1kW
PGA=30dB
V =1.2V
CNTRL
1.00
0.95
0.90
0.85
0.80
0.75
0.70
30dB
Noise(nV/ )Ö
Hz
GainSetting(PGA)
20dB
25dB
27dB
2MHz
5MHz
R =0
V =1.2V
W
S
CNTRL
12k
10k
8k
6k
0
100M
Magnitude( )
W
100
80
60
40
20
0
-100
Phase( )°
-80
-20
-40
-60
4k
2k
Frequency(Hz)
100k
1M 10M
Magnitude(Z )
IN
Phase
1.30
1.28
1.26
1.24
1.22
1.20
1.18
1.16
1.14
1.12
1.10
1.08
1.06
1.04
1.02
1.00
20
Noise(nV/ )
ÖHz
Frequency(MHz)
0.1
10
1.0
CWOutput
-45
50
55
60
65
70
75
-
-
-
-
-
-
10
Distortion(dBc)
Frequency(MHz)
1
30dB
25dB
27dB
20dB
V =1V
V =1.2V
OUT PP
CNTRL
-45
50
55
60
65
70
75
-
-
-
-
-
-
10
Distortion(dBc)
Frequency(MHz)
1
30dB
25dB
27dB
20dB
V =1V
V =1.2V
OUT PP
CNTRL
VCA8500
SBOS390A – JANUARY 2008 – REVISED MARCH 2008
TYPICAL CHARACTERISTICS (continued)
All specifications at T
A
= +25 ° C, AVDD2 = 5.0V, AVDD1 = DVDD = 3.3V; single-ended, ac-coupled (1 µ F) input configuration
to the preamp (LNA), f
IN
= 5MHz, V
CNTL
= 1.0V, clamp disabled (CL = 1), LPF = 15MHz, and R
LOAD
= 1k Ω on each output to
ground, unless otherwise noted.
NOISE FIGURE vs FREQUENCY OVER R
S
INPUT-REFERRED NOISE
Figure 26. Figure 27.
INPUT-REFERRED NOISE vs FREQUENCY MAGNITUDE AND PHASE vs FREQUENCY
Figure 28. Figure 29.
2ND HARMONIC vs FREQUENCY 3RD HARMONIC vs FREQUENCY
Figure 30. Figure 31.
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