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参数资料
型号： MAX2338ETI+T
厂商： Maxim Integrated
文件页数： 10/13页
文件大小： 0K
描述： IC LNA/MIXER CDMA 28-TQFN
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 2,500
功能： LNA/混频器
频率： 869MHz ~ 894MHz，1.93GHz ~ 1.99GHz
RF 型： CDMA，EDGE，GSM，TDMA
次要属性： 15dB LNA 增益
封装/外壳： 28-WFQFN 裸露焊盘
包装： 带卷 (TR)
Triple/Dual-Mode CDMA LNA/Mixers
Operational Modes
The various operating modes are controlled by the logic
inputs BAND , GAIN, LIN, and LO/2. Table 1 shows the
pin settings for the various operating modes.
Applications Information
Cascaded LNA/Mixer Performance
The LNA and mixer design optimizes cascaded perfor-
mance in all gain and linearity modes. In HGHL mode
both the LNA and mixer have a low noise figure, high
gain, and high linearity. The LNA has high gain to mini-
mize the noise contribution of the mixer, thus increasing
the receiver ’ s sensitivity, and the LNA has high linearity
for cross-modulation suppression. The HGLL mode is
used when the transmitter is off and cross-modulation is
not a concern. In LGHL mode, the received signal is
strong enough that linearity is the primary concern. The
LNA gain is reduced for higher system linearity.
S-Parameters
Use the S-parameters listed in the following tables to
design the RF matching circuits.
Table 2. MAX2338 Cellular Band LNA S-parameters High-Gain, High-Linearity Mode
FREQUENCY (MHz)
30
50
100
150
200
300
400
500
600
700
800
810
820
830
840
850
860
870
880
890
900
1000
1250
1500
1750
2000
2500
3000
3500
4000
| S11 |
0.905
0.899
0.891
0.884
0.874
0.85
0.818
0.785
0.75
0.714
0.683
0.681
0.677
0.675
0.670
0.668
0.665
0.661
0.660
0.660
0.653
0.614
0.547
0.457
0.310
0.320
0.300
0.310
0.360
0.360
∠ S11
-5.4
-8.1
-15.1
-21.8
-28.2
-41.6
-52.5
-63.5
-71.6
-79.8
-76.5
-77.0
-77.0
-78.0
-78.3
-78.8
-79.0
-79.5
-80.0
-80.4
-81.0
-97.0
-111
-131
-164
166
141
122
86
10
| S21 |
0.145
0.467
1.34
2.2
2.83
3.77
4.24
4.44
4.38
4.16
4.03
4.01
3.99
3.97
3.96
3.93
3.92
3.91
3.89
3.87
3.86
3.59
3.15
2.93
2.48
2.1
1.62
1.29
1.18
1.14
∠ S21
-38
-57
-86
-108
-127
-157.5
178.3
155.4
140
125
112.6
111.2
110.0
108.5
107.2
106.4
104.7
103.4
102.1
100.8
99.3
86.2
60.8
34
18
-40
-41
-66
-88
-112
| S12 |
0.002
0.003
0.012
0.023
0.027
0.029
0.030
0.036
0.040
0.048
0.059
0.060
0.061
0.061
0.062
0.063
0.063
0.063
0.063
0.063
0.063
0.07
0.09
0.109
0.14
0.185
0.19
0.19
0.2
0.2
∠ S12
-55
-126
-174
176
165.8
137
127
112
98
90
83.0
82.8
82.0
80.9
80.6
79.2
78.1
77.2
76.5
75.4
73.5
20
-13.2
-36
-62
-98
-150
136
90
43
| S22 |
0.98
0.94
0.96
0.96
0.95
0.93
0.90
0.94
0.87
0.84
0.793
0.798
0.800
0.799
0.792
0.782
0.769
0.753
0.733
0.710
0.690
0.680
0.650
0.610
0.580
0.490
0.360
0.41
0.500
0.480
∠ S22
-47
-72
-117
-144
-162
-172
155
129
100
78
67.5
66.5
65.7
65.0
64.2
63.4
62.7
61.8
60.6
59.4
57.7
51.8
37
15.9
-9.6
-33
-70
-64
-61
-50
10
______________________________________________________________________________________
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