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參數(shù)資料
| 型號： | MRFIC0919 |
| 廠商： | Motorola, Inc. |
| 英文描述： | RF Power Amplifiers(RF功率放大器) |
| 中文描述： | 射頻功率放大器（射頻功率放大器） |
| 文件頁數(shù)： | 10/11頁 |
| 文件大?。?/td> | 196K |
| 代理商： | MRFIC0919 |
MRFIC0919
10
MOTOROLA WIRELESS SEMICONDUCTOR
SOLUTIONS – RF AND IF DEVICE DATA
Figure 18. Timing Guide
OpAmp
shdn
Tx En
(&RF In)
Vramp
3.0 V
0 V
3.0 V
0 V
2.0 V
0 V
20
μ
s
2.0
μ
s
Burst mode
Use Figure 18 as a guide line to perform burst mode
measurements with the complete application circuit of
Figure 2. Notice that the VSC pin is connected to Vramp
(through a resistor) and act as a pull down when negative
voltage is missing so that drain voltage is not applied to the
RF line–up.
– Bursting the OpAmp with its Pin 8 (shdn) is not mandatory
during a call as the OpAmp current consumption is very small
(1.0 to 2.0 mA). This pin is mainly used for the idle mode of the
radio. In any case, the wake–up time of the OpAmp is very
short.
– Vramp can be applied soon after Tx EN since the internal
negative
voltage
generator
2.0
μ
s.
– Tx EN signal can be used to switch the input power (using
a driver or attenuator) in order to provide higher isolation for
on/off burst dynamic.
settles
in
less
than
References (Motorola application notes)
AN1599 – Power Control with the MRFIC0913 GaAs
Integrated Power Amplifier and MC33169 Support IC.
AN1602 – 3.6 V and 4.8 V GSM/DCS1800 Dual Band PA
Application with DECT capability Using Standard Motorola
RFIC’s.
相關PDF資料 |
PDF描述 |
|---|---|
| MRFIC0930 | 900 MHz GaAs Low Noise Amplifier(900 MHz GaAs低噪聲放大器) |
| MRFIC0931 | BALANCED TRANSMIT MIXER SILICON MONOLITHIC INTEGRATED CIRCUIT |
| MRFIC0954 | 800MHZ CDMA Upmixer and Exciter(800MHz 碼分多路訪問的上混頻器和激勵器) |
| MRFIC1501 | 1.6GHz GaAs Low Noise Amplifier(1.6GHz GaAs低噪聲放大器) |
| MRFIC1502 | 1.575GHz GPS Downconverter(1.575GHz GPS下轉換器) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MRFIC0931 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:BALANCED TRANSMIT MIXER SILICON MONOLITHIC INTEGRATED CIRCUIT |
| MRFIC0970 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:3.2V GSM GaAs Intergrated Power Amplifier |
| MRFIC1501 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:1.6 GHz GaAs LOW NOISE AMPLIFIER |
| MRFIC1501R2 | 制造商:Freescale Semiconductor 功能描述: |
| MRFIC1502 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:1.575 GHz GPS DOWNCONVERTER |
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