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Philips Semiconductors Product specification
SA5205AWide-band high-frequency amplifier
1997 Nov 07
11
6
a. Input VSWR vs Frequency b. Output VSWR vs Frequency
INPUT VSWR
OUTPUT VSWR
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
FREQUENCY—MHz
T
A
= 25
o
C
V
CC
= 6V
Z
O
= 75Ω
Z
O
= 50Ω
.
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
FREQUENCY—MHz
T
amb
= 25
o
C
V
CC
= 6V
Z
O
= 75Ω
Z
O
= 50Ω
2.0
8
10
12 4
10
22 468
10
368
10
12 4
10
22 468
10
3
SR00235
Figure 21. Input/Output VSWR vs Frequency
ADDITIONAL READING ON SCATTERING
PARAMETERS
For more information regarding S-parameters, please refer to
High-Frequency Amplifiers by Ralph S. Carson of the University of
Missouri, Rolla, Copyright 1985; published by John Wiley & Sons,
Inc.
“S-Parameter Techniques for Faster, More Accurate Network Design”,
HP App Note 95-1, Richard W. Anderson, 1967, HP Journal.
“S-Parameter Design”, HP App Note 154, 1972.
-60 -50 -40 -30 -20 -10 0 +10 +20 +30 +40
+30
+20
+10
0
-10
-20
-30
-40
2ND ORDER
INTERCEPT
POINT
2ND ORDER
RESPONSE
3RD ORDER
RESPONSE
INPUT LEVEL dBm
THIRD ORDER
INTERCEPT POINT
1dB
COMPRESSION POINT
FUNDAMENTAL
RESPONSE
OUTPUT LEVEL
dBm
SR00236
Figure 22.