參數(shù)資料
型號： LMX2315
廠商： National Semiconductor Corporation
英文描述： Frequency Synthesizer for RF Personal Communications
中文描述： 頻率合成射頻個人通信
文件頁數(shù)： 18/22頁
文件大?。?/td> 409K
代理商： LMX2315
Application Information
(Continued)
MEASUREMENT RESULTS (Example
Y
1)
TL/W/12339–47
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/12339–49
FIGURE 6. PLL Phase Noise 10 kHz Offset
The phase noise level at 10 kHz offset is
b
80 dBc/Hz.
TL/W/12339–48
FIGURE 7. PLL Phase Noise
@
1 kHz Offset
The phase noise level at 1 kHz offset is
b
79.5 dBc/Hz.
TL/W/12339–50
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.
http://www.national.com
18
相關(guān)PDF資料
PDF描述
LMX2315TM Frequency Synthesizer for RF Personal Communications
LMX2315TMX Frequency Synthesizer for RF Personal Communications
LMX2316 PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications
LMX2316TMX PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications
LMX2316TM PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
LMX2315TMX 功能描述:IC FREQ SYNTH 2.5GHZ 20-TSSOP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:PLLatinum™ 標準包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:*
LMX2316 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications
LMX2316LBX 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FREQUENCY SYNTHESIZER|BICMOS|LLCC|16PIN|PLASTIC
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