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參數(shù)資料
| 型號： | RMBA19500-TB |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | PCS 2 Watt Linear GaAs MMIC Power Amplifier |
| 中文描述： | 個人通訊2瓦特線性功率單片放大器的 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大小： | 93K |
| 代理商： | RMBA19500-TB |
2003 Fairchild Semiconductor Corporation
RMBA19500 Rev. C
R
Application Information
CAUTION: THIS IS AN ESD SENSITIVE DEVICE
The following describes a procedure for evaluating the RMBA19500, a monolithic high efficiency power amplifier, in a
surface mount package, designed for use as a driver stage for PCS Base station or as the final output stage for Micro- and
Pico-Cell base stations. Figure 1 shows the package outline and the pin designations. Figure 2 shows the functional block
diagram of the packaged product. The RMBA19500 requires external passive components for DC bias and RF input and
output matching circuits. A recommended schematic circuit is shown in Figure 3. The gate biases for the three stages of the
amplifier may be set by simple resistive voltage dividers. Figure 4 shows a typical layout of an evaluation board,
corresponding to the schematic circuits of Figure 3. The following designations should be noted:
(1) Pin designations are as shown in Figure 2.
(2) Vg1, Vg2, and Vg3 are the Gate Voltages (negative) applied at the pins of the package.
(3) Vgg1, Vgg2 and Vgg3 are the negative supply voltages at the evaluation board terminals (Vg1 and Vg2 are tied together).
(4) Vd1, Vd2 and Vd3 are the Drain Voltages (positive) applied at the pins of the package.
(5) Vdd is the positive supply voltage at the evaluation board terminal (Vd1, Vd2, and Vd3 are tied together).
Note: The base of the package must be soldered on to a heat sink for proper operation.
Figure 1. 12 Lead Plastic Air Cavity Package with Integral Heat Sink
6
5
0.200 SQ.
0.011
0.030
0.020
0.015
4
4
5
Bottom View
Top View
Plastic Lid
Side Section
6
12 11 10
7
8
9
3
2
1
10
3
2
1
7
8
9
11 12
0.041
0.075 MAX
0.010
Dimensions in inches
0.282
0.246
0.230
Pin
10
11
12
13
Description
1
2
3
4
5
6
7
8
9
RF Out & Vd3
RF Out & Vd3
RF Out & Vd3
VD1
GND
VG1
RF In
GND
VG2
VD2
GND
VG3
GND
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