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參數(shù)資料
| 型號(hào)： | ACPM-7816-BLK |
| 元件分類： | 放大器 |
| 英文描述： | 824 MHz - 849 MHz RF/MICROWAVE NARROW BAND LOW POWER AMPLIFIER |
| 封裝： | 4 X 4 MM, 1.10 MM HEIGHT, SMT, 10 PIN |
| 文件頁(yè)數(shù)： | 21/23頁(yè) |
| 文件大?。?/td> | 209K |
| 代理商： | ACPM-7816-BLK |
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7
CDMA Power Amplifier Efficiency
Improvement with a DC-DC Converter
Efficiency of power amplifier for
wireless communication systems
is a critical requirement for
prolonging battery life. One
method to boost PA efficiency at
medium output power
(14~16 dBm Pout) is to use a
DC-DC Converter, which helps to
control the bias voltage of Power
Amplifier. This type of solution is
described below using the
Agilent ACPM-7816, 4x4 CDMA
PA, and commercially available
DC-DC converter.
ACPM-7816 Features
4.0 x 4.0 x 1.1 mm SMT sized
800 MHz (Cell) single band PA
High efficiency: 40% PAE
Dynamic bias control for low
medium power Idd
CDMA2000 1xRTT capable
DC-DC Converter Features
2.6V to 5.5V Input Voltage Range
1 MHz Fixed Frequency PWM
Switching
600 mA (min) Output Current
Adjustable Output Voltages (Scaled
by a Reference Input Voltage to
supply output voltages from 0.75V
to 3.4V)
Low 0.1
A (typ) Quiescent current
in shutdown mode
Operational Instructions
1) Connect 3.4V supply to the V
BATT pin on the DC/DC converter.
2) Connect input to the reference voltage pin on DC/DC converter.
The input range on the reference voltage will determine the bias
levels on the PA, depending on scaling factor of DC/DC converter.
3) Connect 3.4V supply to the Vbias pin.
4) Set voltage on Vcntl pin (typically 2.5V for normal operation and
0V for shutdown).
5) Vdd1 and Vdd2 pins should be connected to the Vout pin from
DC-DC Converter.
6) Details for external component values associated with the DC/DC
converter can be obtained from the support material of DC/DC
vendor.
Figure 11. Test Setup with Agilent PA and DC-DC Converter.
Reference voltage
VBATT=3.4V
Pin
Pout
Vcntl voltage
Vbias
Vcntl
Vdd1
Vdd2
ACPM-7816
BATT
LX
OUT
REF
REFIN
DC/DC
Converter
4.7
H
2.2
F
Vout=1V ~3.2V, 600 mA
Test Setup Block Diagram
Application Information
The following material is presented to assist in general design and use of the ACPM-7816.
Use of ACPM-7816 with a DC/DC Converter
3.0V Characterization, for use in Data Card Applications
cdma2000 1XRTT Description and Characterization data
Design tips on various methods to control the bias on Vcntl pin
Description of ACPR measurement methods
Description of Agilent evaluation demoboard for ACPM-7816
IR Reflow Profile (applicable for all Agilent E-pHEMT PAs)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ACPM-7816-TR1 | 824 MHz - 849 MHz RF/MICROWAVE NARROW BAND LOW POWER AMPLIFIER |
| ACPM-7821-BLK | 898 MHz - 925 MHz RF/MICROWAVE NARROW BAND MEDIUM POWER AMPLIFIER |
| ACPM-7822-BLK | 898 MHz - 925 MHz RF/MICROWAVE NARROW BAND LOW POWER AMPLIFIER |
| ACPM-7822-TR1 | 898 MHz - 925 MHz RF/MICROWAVE NARROW BAND LOW POWER AMPLIFIER |
| ACPM-7833-BLK | 1850 MHz - 1910 MHz RF/MICROWAVE NARROW BAND MEDIUM POWER AMPLIFIER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ACPM-7821 | 制造商:AVAGO 制造商全稱:AVAGO TECHNOLOGIES LIMITED 功能描述:4 x 4 Power Amplifier Module for J-CDMA (898 - 925 MHz) |
| ACPM-7821-BLK | 制造商:AVAGO 制造商全稱:AVAGO TECHNOLOGIES LIMITED 功能描述:4 x 4 Power Amplifier Module for J-CDMA (898 - 925 MHz) |
| ACPM-7821-TR1 | 制造商:AVAGO 制造商全稱:AVAGO TECHNOLOGIES LIMITED 功能描述:4 x 4 Power Amplifier Module for J-CDMA (898 - 925 MHz) |
| ACPM-7822 | 制造商:AVAGO 制造商全稱:AVAGO TECHNOLOGIES LIMITED 功能描述:JCDMA 4x4 Power Amplifier Module (898-925MHz) |
| ACPM-7822-BLK | 制造商:AVAGO 制造商全稱:AVAGO TECHNOLOGIES LIMITED 功能描述:JCDMA 4x4 Power Amplifier Module (898-925MHz) |
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