85v, t, 25°c) – Rainbow Electronics MAX2658 User Manual
Page 7
MAX2657/MAX2658
GPS/GNSS Low-Noise Amplifiers
_______________________________________________________________________________________
7
Table 2. MAX2658 Typical S-Parameter Values and K-Factor
FREQ.
(MHz)
S11 MAG
(dB)
S11
PHASE
(Degrees)
S21 MAG
(dB)
S21
PHASE
(Degrees)
S12 MAG
(dB)
S12
PHASE
(Degrees)
S22 MAG
(dB)
S22
PHASE
(Degrees)
K
f
1000
-3.0
-57.0
10.8
-120.0
-43.0
-154.0
-1.3
-65.0
3.2
1100
-3.3
-58.2
11.6
-124.5
-42.1
-155.0
-1.6
-70.2
3.3
1200
-3.5
-60.0
13.4
-134.6
-39.3
-160.5
-2.4
-79.6
2.8
1300
-3.8
-62.3
14.9
-148.0
-37.2
-168.3
-4.0
-90.0
2.7
1400
-4.3
-63.3
15.9
-162.3
-35.4
-178.2
-7.3
-101.0
2.7
1500
-4.9
-62.0
16.6
-178.9
-33.9
171.0
-14.5
-100.6
2.6
1575
-5.3
-59.7
16.6
168.0
-33.5
161.7
-19.6
-26.0
2.5
1600
-5.4
-58.5
16.5
163.9
-33.6
157.5
-16.7
-6.0
2.5
1700
-5.5
-53.7
15.8
149.3
-33.6
148.3
-9.0
3.6
2.3
1800
-5.3
-50.3
14.7
136.8
-34.2
142.5
-5.7
-2.8
2.2
1900
-5.1
-48.0
13.4
130.0
-35.1
139.6
-4.0
-9.6
2.3
2000
-4.9
-46.3
12.7
123.9
-35.8
138.6
-3.0
-15.0
2.1
Table 3. MAX2657 Typical Noise Parameters (V
CC
= 2.85V, T
A
= +25°C)
FREQUENCY (MHz)
FMIN
(dB)
|
Γ
OPT
|
|
Γ
OPT
| ANGLE
R
N
(
Ω)
1550
0.68
0.44
47.7
8.39
1560
0.68
0.44
48.1
8.38
1570
0.68
0.44
48.3
8.37
1575
0.68
0.44
48.5
8.36
1580
0.68
0.44
48.6
8.36
1590
0.68
0.44
48.9
8.35
1600
0.68
0.44
49.2
8.34
Table 4. MAX2658 Typical Noise Parameters (V
CC
= 2.85V, T
A
= +25°C)
FREQUENCY (MHz)
FMIN
(dB)
|
Γ
OPT
|
|
Γ
OPT
| ANGLE
R
N
(
Ω)
1550
0.68
0.28
88.0
4.48
1560
0.68
0.28
88.4
4.48
1570
0.68
0.28
88.8
4.48
1575
0.68
0.28
89.0
4.48
1580
0.68
0.28
89.2
4.48
1590
0.69
0.28
89.6
4.47
1600
0.69
0.28
90.0
4.47