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參數(shù)資料
| 型號： | LMX2216 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 0.1 GHz to 2.0 GHz Low Noise Amplifier/Mixer for RF Personal Communications |
| 中文描述： | 0.1 GHz至2.0 GHz的低噪聲放大器/射頻個人通信攪拌機(jī) |
| 文件頁數(shù)： | 11/12頁 |
| 文件大?。?/td> | 258K |
| 代理商： | LMX2216 |
Figures of Merit
(Continued)
Due to the presence of image frequencies and the method
in which noise figure is defined, noise figures can be mea-
sured and specified in two ways: double side band (DSB) or
single side band (SSB). In DSB measurements, the image
frequency component of the input noise source is not fil-
tered and contributes to the total output noise at the inter-
mediate frequency. In SSB measurements. the image fre-
quency is filtered and the output noise is not caused by this
frequency component. In most mixer applications where
only one side band is wanted, SSB noise figure is 3 dB
higher than DSB noise figure.
In this application, the LMX2216 is used in a radio receiver
front end, where it amplifies the signal from the antenna and
then down converts it to an intermediate frequency. The
image filter placed between the LNA and the mixer attenu-
ates the image frequency. The mixer is shown to use an LO
signal generated by a PLL synthesizer, but, depending on
the type of application, the LO signal could be generated by
a device as simple as a free-running oscillator. The IF output
is then typically filtered by a channel-select filter following
the mixer, and this signal can then be demodulated or go
through another down conversion, depending upon the in-
termediate frequency and system requirements. This exter-
nal filter rejects adjacent channels and also attenuates any
LO feed through. Figure 9 shows a cascade analysis of a
typical RF front-end subsystem in which the LMX2216 is
used. It includes the bandpass filter and the switch through
which the input RF signal goes in a radio system before
reaching the LNA. Typical values are used for the insertion
loss of the various filters in this example.
TL/W/11814–18
FIGURE 8. Typical Applications Circuit of the LMX2216
Data per Stage
Gain
b
2.0
b
0.6
12.3
b
3.0
5.8
b
3.0
Cumulative Data
N Fig
2.0
2.6
6.3
6.4
9.6
9.7
Y
Comp
1
2
3
4
5
6
N Fig
2.0
0.6
3.7
3.0
13.7
3.0
OIP3
100.0
100.0
6.0
100.0
3.0
100.0
Y
1
2
3
4
5
6
Gain
b
2.0
b
2.6
9.7
6.7
12.5
9.5
IIP3
97.9
96.6
b
3.7
b
3.7
b
10.5
b
10.5
OIP3
95.9
94.0
6.0
3.0
2.0
b
1.0
Filter
Switch
LNA
Filter
Mixer
Filter
System Cumulative Values
Gain
N Fig
IIP
3
OIP
3
9.5 dB
9.7 dB
b
10.5 dBm
b
1.0 dBm
FIGURE 9. Cascade Analysis Example
11
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PDF描述 |
|---|---|
| LMX2216M | 0.1 GHz to 2.0 GHz Low Noise Amplifier/Mixer for RF Personal Communications |
| LMX2306 | PLLatinum Low Power Frequency Synthesizer for RF Personal Communications(PLLatinum技術(shù)用于射頻個人通訊的低耗頻率合成器) |
| LMX2322 | PLLatinumTM 2.0 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2332LSLDX | PLLatinumTM Low Power Dual Frequency Synthesizer for RF Personal Communications |
| LMX2330LSBX | PLLatinumTM Low Power Dual Frequency Synthesizer for RF Personal Communications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX2216BM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:RF Mixer |
| LMX2216BMX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:RF Mixer |
| LMX2216M | 功能描述:IC AMP/MIXER LO NOISE 16-SOIC RoHS:否 類別:RF/IF 和 RFID >> RF 放大器 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 頻率:100MHz ~ 6GHz P1dB:9.14dBm（8.2mW） 增益:15.7dB 噪音數(shù)據(jù):1.3dB RF 型:CDMA，TDMA，PCS 電源電壓:2.7 V ~ 5 V 電流 - 電源:60mA 測試頻率:2GHz 封裝/外殼:0505（1412 公制） 包裝:帶卷 (TR) |
| LMX2216MX | 功能描述:IC AMP/MIXER LO NOISE 16-SOIC RoHS:否 類別:RF/IF 和 RFID >> RF 放大器 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 頻率:100MHz ~ 6GHz P1dB:9.14dBm（8.2mW） 增益:15.7dB 噪音數(shù)據(jù):1.3dB RF 型:CDMA，TDMA，PCS 電源電壓:2.7 V ~ 5 V 電流 - 電源:60mA 測試頻率:2GHz 封裝/外殼:0505（1412 公制） 包裝:帶卷 (TR) |
| LMX2218M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:RF Mixer |
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