SA5204A Datasheet, PDF (10/13 Pages) NXP Semiconductors – Wide-band high-frequency amplifier

Philips Semiconductors
Wide-band high-frequency amplifier
Product specification
SA5204A
50Ω System
25
v_cc = 8v
v_cc = 7v
20
v_cc = 6v
15
v_cc = 5v
10
10¹
Z_O = 50Ω
T_A = 25^oC
2
4 6 8 ₁₀2 2
4 6 8 ₁₀3
FREQUENCY—MHz
a. Insertion Gain vs Frequency (S₂₁)
10
75Ω System
25
v_cc = 8v
v_cc = 7v
20
v_cc = 6v
15
v_cc = 5v
Z_O = 75Ω
T_A = 25^oC
10
10^{1 2}
4 6 8 ₁₀2 2
4 6 8 ₁₀3
FREQUENCY—MHz
b. Insertion Gain vs Frequency (S₂₁)
10
–15
Z_O = 50Ω
T_A = 25^oC
V_CC = 6V
–20
–15
Z_O = 75Ω
T_A = 25^oC
V_CC = 6V
–20
–25
–25
–30
10¹
2
4 6 8 ₁₀2 2
4 6 8 ₁₀3
FREQUENCY—MHz
c. Isolation vs Frequency (S₁₂)
40
35
–30
10¹
2
4 6 8 ₁₀2 2
4
FREQUENCY—MHz
d. S₁₂ Isolation vs Frequency
40
6 8 ₁₀3
35
30
25
20
V_CC = 6V
Z_O = 50Ω
T_A = 25^oC
15
OUTPUT
INPUT
10
10¹
2
4 6 8 ₁₀2
2
4 6 8 ₁₀3
FREQUENCY—MHz
e. Input (S₁₁) and Output (S₂₂) Return Loss
vs Frequency
30
25
OUTPUT
20
15
10
10¹
INPUT
V_CC = 6V
Z_O = 75Ω
T_A = 25^oC
2
4 6 8 ₁₀2
2
4 6 8 ₁₀3
FREQUENCY—MHz
f. Input (S₁₁) and Output (S₂₂) Return Loss
vs Frequency
SR00212
INPUT RETURN LOSS=S₁₁dB
S₁₁dB=20 Log | S₁₁ |
OUTPUT RETURN LOSS=S₂₂dB
S₂₂dB=20 Log | S₂₂ |
INPUT VSWR=≤1.5
OUTPUT VSWR=≤1.5
Figure 20.
1dB from its low power value. The decrease is due to nonlinearities
in the amplifier, an indication of the point of transition between
small-signal operation and the large signal mode.
The saturated output power is a measure of the amplifier’s ability to
deliver power into an external load. It is the value of the amplifier’s
output power when the input is heavily overdriven. This includes the
sum of the power in all harmonics.
1DB GAIN COMPRESSION AND SATURATED
OUTPUT POWER
The 1dB gain compression is a measurement of the output power
level where the small-signal insertion gain magnitude decreases
INTERMODULATION INTERCEPT TESTS
The intermodulation intercept is an expression of the low level
linearity of the amplifier. The intermodulation ratio is the difference in
dB between the fundamental output signal level and the generated
distortion product level. The relationship between intercept and
1997 Nov 07
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