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參數(shù)資料
| 型號(hào)： | LMX2314 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 1.2 GHz Frequency Synthesizer for RF Personal Communications |
| 中文描述： | 1.2千兆赫頻率合成射頻個(gè)人通信 |
| 文件頁(yè)數(shù)： | 17/20頁(yè) |
| 文件大小： | 371K |
| 代理商： | LMX2314 |
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Application Information
(Continued)
MEASUREMENT RESULTS
TL/W/11766–21
FIGURE 5. PLL Reference Spurs
The reference spurious level is
k
b
74 dBc, due to the loop
filter attenuation and the low spurious noise level of the
LMX2315.
TL/W/11766–23
FIGURE 6. PLL Phase Noise 10 kHz Offset
The phase noise level at 10 kHz offset is
b
80 dBc/Hz.
TL/W/11766–22
FIGURE 7. PLL Phase Noise
@
1 kHz Offset
The phase noise level at 1 kHz offset is
b
79.5 dBc/Hz.
TL/W/11766–24
FIGURE 8. Frequency Jump Lock Time
Of concern in any PLL loop filter design is the time it takes
to lock in to a new frequency when switching channels.Fig-
ure 8 shows the switching waveforms for a frequency jump
of 865 MHz to 915 MHz. By narrowing the frequency span
of the HP53310A Modulation Domain Analyzer enables
evaluation of the frequency lock time to within
g
500 Hz.
The lock time is seen to be less than 500
m
s for a frequency
jump of 50 MHz.
17
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LMX2314M | 1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2314MX | 1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2315 | Frequency Synthesizer for RF Personal Communications |
| LMX2315TM | Frequency Synthesizer for RF Personal Communications |
| LMX2315TMX | Frequency Synthesizer for RF Personal Communications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMX2314M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2314MX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2315 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.2 GHz Frequency Synthesizer for RF Personal Communications |
| LMX2315D WAF | 制造商:Texas Instruments 功能描述: |
| LMX2315TM | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:1.2 GHz Frequency Synthesizer for RF Personal Communications |
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