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參數(shù)資料
| 型號(hào)： | RF2418 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 衰減器 |
| 英文描述： | LOW CURRENT LNA/MIXER |
| 中文描述： | RF/MICROWAVE DOWN CONVERTER |
| 封裝： | ROHS COMPLIANT, SOIC-14 |
| 文件頁(yè)數(shù)： | 4/10頁(yè) |
| 文件大?。?/td> | 114K |
| 代理商： | RF2418 |
8-38
RF2418
Rev A6 010717
8
F
Application S chematic
High Impedanc e Output Configuration
850MHz
Pin
10
11
Function
GND
RF IN
Description
Same as pin 2.
Interface Schematic
Mixer RF Input port. For a 50
match at 900MHz use a 15nH series
inductor. This pin is NOT internally DC-blocked. An external blocking
capacitor must be provided if the pin is connected to a device with DC
present. A DC path to ground (i.e. an inductor or resistor to ground) is,
however, acceptable at this pin. If a blocking capacitor is required, a
value of 22pF is recommended.To minimize the mixer’s noise figure, it
is recommended to have a RF bandpass filter before this input. This will
prevent the noise at the image frequency from being converted to the
IF.
Same as pin 2.
12
13
14
GND
GND
LNA OUT
Same as pin 2.
50
output. Internally DC-blocked.
RF IN
LNA OUT
1
2
3
4
5
6
7
14
13
12
11
10
9
8
LNA
MIXER
BUFFER
10pF
RF AMP
IF Filter, Hi Z
IF OUT
RF IN
Image Filter 50
10 nH
LO IN
V
DD
V
DD
L1 and C1 are picked to match the mixer's output impedance (4 k
II 10 pF) to the IF
filter's impedance, at the IF frequency. C1 also serves as a DC block, in case the IF filter
is not an open circuit at DC.
L1
100 nF
C1
47 pF
100 nF
10 nH
4 pF
1 nF
15 nH
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PDF描述 |
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| RF2418PCBA | LOW CURRENT LNA/MIXER |
| RF2420PCBA | PROGRAMMABLE ATTENUATOR |
| RF2420 | PROGRAMMABLE ATTENUATOR |
| RF2421PCBA | 10dB SWITCHED ATTENUATOR |
| RF2421 | 10dB SWITCHED ATTENUATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RF2418_06 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:LOW CURRENT LNA/MIXER |
| RF2418_1 | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:LOW CURRENT LNA/MIXER |
| RF2418PCBA | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:LOW CURRENT LNA/MIXER |
| RF2418PCBA-41X | 制造商:RFMD 制造商全稱:RF Micro Devices 功能描述:LOW CURRENT LNA/MIXER |
| RF2418PCK | 制造商:RF Micro Devices Inc 功能描述:KIT EVAL FOR RF2418 |
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