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参数资料
| 型号： | LMX2315MDA |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 1200 MHz, UUC |
| 封装： | DIE |
| 文件页数： | 6/25页 |
| 文件大小： | 452K |
| 代理商： | LMX2315MDA |
Typical Application Example
Operational Notes
TLW12339 – 27
VCO is assumed AC coupled
RIN increases impedance so that VCO output power is provided to the load rather than the PLL Typical values are 10X to 200X depending on the VCO power
level fIN RF impedance ranges from 40X to 100X
50X termination is often used on test boards to allow use of external reference oscillator For most typical products a CMOS clock is used and no terminating
resistor is required OSCIN may be AC or DC coupled AC coupling is recommended because the input circuit provides its own bias (See Figure below)
Layout Hints
TLW12339 – 28
Proper use of grounds and bypass capacitors is essential to achieve a high level of performance
Crosstalk between pins can be reduced by careful board layout
This is a static sensitive device It should be handled only at static free work stations
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相关代理商/技术参数 |
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| LMX2315TM | 制造商:NSC 制造商全称: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 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:* |
| 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 |
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