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参数资料
| 型号： | LMX2315TMX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | XO, clock |
| 英文描述： | Frequency Synthesizer for RF Personal Communications |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 1200 MHz, PDSO20 |
| 封装： | 0.173 INCH, PLASTIC, TSSOP-20 |
| 文件页数： | 20/22页 |
| 文件大小： | 409K |
| 代理商： | LMX2315TMX |
Application Information
(Continued)
MEASUREMENT RESULTS
(Example
Y
2)
TL/W/12339–34
FIGURE 10. PLL Reference Spurs
The reference spurious level is
k
b
65 dBc, due to the loop
filter attenuation and the low spurious noise level of the
LMX2320.
TL/W/12339–36
FIGURE 12. PLL Phase Noise 20 kHz Offset
The phase noise level at 20 kHz offset is
b
80 dBc/Hz.
TL/W/12339–35
FIGURE 11. PLL Phase Noise
@
150 Hz Offset
The phase noise level at 150 Hz offset is
b
81.1 dBc/Hz.
The spurs at 60 and 180 Hz offset are due to 60 Hz line
noise from the power supply.
TL/W/12339–37
FIGURE 13. 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 13 shows the switching waveforms for a frequency jump
of 1650.9 MHz to 1683.9 MHz. By narrowing the frequency
span of the HP53310A Modulation Domain Analyzer en-
ables evaluation of the frequency lock time to within
g
1 kHz. The lock time is seen to be less than 500
m
s for a
frequency jump of 33 MHz.
http://www.national.com
20
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LMX2316 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications |
| LMX2316LBX | 制造商:未知厂家 制造商全称:未知厂家 功能描述:FREQUENCY SYNTHESIZER|BICMOS|LLCC|16PIN|PLASTIC |
| LMX2316SLBX | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum⑩ Low Power Frequency Synthesizer for RF Personal Communications |
| LMX2316SLBX/NOPB | 功能描述:IC FREQ SYNTH 1.2GHZ 16LAMIN CSP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:PLLatinum™ 标准包装:39 系列:- 类型:* PLL:带旁路 输入:时钟 输出:时钟 电路数:1 比率 - 输入:输出:1:10 差分 - 输入:输出:是/是 频率 - 最大:170MHz 除法器/乘法器:无/无 电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* |
| LMX2316TM | 制造商:Texas Instruments 功能描述:PLL Frequency Synthesizer Single 100MHz to 1200MHz 16-Pin TSSOP Rail |
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