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参数资料
| 型号： | MAAPSS0113TR-3000 |
| 元件分类： | 放大器 |
| 英文描述： | 1880 MHz - 1930 MHz RF/MICROWAVE NARROW BAND MEDIUM POWER AMPLIFIER |
| 封装： | 3 X 3 MM, GREEN, PLASTIC, MO-220VEED-1, QFN-12 |
| 文件页数： | 6/7页 |
| 文件大小： | 303K |
| 代理商： | MAAPSS0113TR-3000 |
North America Tel: 800.366.2266 / Fax: 978.366.2266
Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
Visit www.macom.com for additional data sheets and product information.
M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or
information contained herein without notice.
6
DECT Power Amplifier
1880 - 1930 MHz
M/A-COM Products
Rev. V1
MAAPSS0113
ADVANCED: Data Sheets contain information regarding a product M/A-COM is considering for
development. Performance is based on target specifications, simulated results, and/or prototype
measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product M/A-COM has under develop-
ment. Performance is based on engineering tests. Specifications are typical. Mechanical outline has
been fixed. Engineering samples and/or test data may be available. Commitment to produce in
volume is not guaranteed.
High Voltage Operation (3 Cells)
The MAAPSS0113 amplifier product is designed for
use in phone systems using 2 battery cells for mobile
units (3.6V charging, 2.4V nom.) or up to 3.6V
regulated for base-station units. For operation with
higher supply voltages such as in 3 cell mobile units
(4.5V charging), a dropping diode is required to
reduce the voltage to the amplifier.
An example
schematic is shown in Figure 1.
A series diode is
placed between the battery supply and the three
stages of the amplifier. An example diode is the
Vishay ES1A surface mount diode. This diode has a
maximum forward current of 1A and a forward
voltage drop of 1V.
C6
C7
C8
T3
V
BAT
C2
C3
C4
T4
D1
V
CC
V
CC1
V
CC2
V
CC3
Figure 2 shows the measured affect of the dropping
diode on the supply voltage (VCC) to the amplifier.
Because of the approximate 1V forward drop of the
diode, the maximum supply to the amplifier is 3.6V
for a charging condition of 4.5V. Figures 3 and 4
show the power and current versus a 3 cell battery
range, respectively. The 3 cell performance with the
dropping diode is very similar to the electrical
specification at 2.4V shown on page 2. The key to
matching this data is choosing a diode with
approximately 1V forward drop.
Because of this
forward drop, the maximum voltage from the battery
supply can increase from 4V to 5V.
Figure 2.
VCC vs. 3 cell battery voltage with series dropping diode.
Figure 3.
Pout vs. 3 cell battery voltage
Figure 4.
Current vs. 3 cell battery voltage
Figure 1.
Supply schematic for 3 cell operation showing
external dropping diode, ex. Vishay ES1A
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
3.0
3.2
3.4
3.6
3.8
4.0
4.2
4.4
4.6
Battery Voltage (V)
0
5
10
15
20
25
30
3.0
3.2
3.43.6
3.84.0
4.24.4
4.6
HPM
LPM
Battery Voltage (V)
0
0.1
0.2
0.3
0.4
0.5
0.6
3.0
3.2
3.43.6
3.84.0
4.24.4
4.6
HPM
LPM
Battery Voltage (V)
3 Cell Changing
Voltage
Nominal 3 Cell
Voltage
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