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參數(shù)資料
| 型號： | RMBA19500A-TB |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | PCS1900 2 Watt GaAs MMIC Power Amplifier |
| 中文描述： | PCS1900 2瓦特功率單片放大器的 |
| 文件頁數(shù)： | 2/7頁 |
| 文件大?。?/td> | 88K |
| 代理商： | RMBA19500A-TB |
2004 Fairchild Semiconductor Corporation
RMBA19500A Rev. C
R
Application Information
CAUTION: THIS IS AN ESD SENSITIVE DEVICE
The following describes a procedure for evaluating the RMBA19500A, a monolithic high efficiency power amplifier, in a
surface mount package, designed for use as a driver stage for PCS1900 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 RMBA19500A requires external passive components for DC bias and RF input
and output matching circuits as shown in Figure 3 and the Parts List. 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, 2, 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. Package Outline and Pin Designations
6
5
0.200 SQ.
0.011
RMBA19500A
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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