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參數(shù)資料
| 型號(hào)： | MC33493 |
| 廠商： | Motorola, Inc. |
| 英文描述： | PLL tuned UHF Transmitter for Data Transfer Applications |
| 中文描述： | 鎖相環(huán)調(diào)諧數(shù)據(jù)傳輸應(yīng)用超高頻發(fā)射器 |
| 文件頁(yè)數(shù)： | 13/20頁(yè) |
| 文件大小： | 595K |
| 代理商： | MC33493 |
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OUTPUT POWER MEASUREMENT
MOTOROLA
MC33493 Technical Data
13
OUTPUT POWER MEASUREMENT
The RF output levels given in the electrical characteristics section are measured with a 50
load directly
connected to the pin RFOUT as shown below in figure 9. This wideband coupling method gives results
independent of the application.
Figure 9: Output power measurement configurations
The configuration shown in figure 10-a provides a better efficiency in terms of output power and harmonics
rejection. Schematic on figure 10-b gives the equivalent circuit of the pin RFOUT and the DC bias impeder as
well as the matching network components for 434MHz frequency band.
Figure 10: Output model and matching network for 434MHz band
Figure 11 gives the output power versus the R
ext
resistor value with 50
load and with matching network.
RFOUT
RF output
R
L
=50
100pF
Impeder: TDK MMZ1608Y102CTA00
VCC
RFOUT
RF output
R
L
=50
Impeder: TDK MMZ1608Y102CTA00
VCC
Matching
Network
C
0
R
0
R
L
L
1
1.5pF
RFOUT pin
250
3k
50
Matching
Network
330pF
C
3
39nH
Load
Impeder
(a)
(b)
R
i
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC33493ADTBE | 功能描述:射頻發(fā)射器 UHF TRANSMITTER RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| MC33493ADTBER2 | 功能描述:射頻發(fā)射器 UHF TRANSMITTER RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| MC33493DTB | 功能描述:射頻發(fā)射器 315 434 868 MHz RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| MC33493DTBE | 功能描述:射頻發(fā)射器 PLL TUNED UHF TRANSMITTE RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| MC33493DTBER2 | 功能描述:射頻發(fā)射器 PLL TUNED UHF TRANSMITTE RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
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