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参数资料
| 型号： | LMX1600TM/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 2000 MHz, PDSO16 |
| 封装： | PLASTIC, TSSOP-16 |
| 文件页数： | 5/17页 |
| 文件大小： | 631K |
| 代理商： | LMX1600TM/NOPB |
2.0 Programming Description (Continued)
2.5.2
Typical Lock Detect Timing (AUX_PD_POL/MAIN_PD_POL = 1)
10012917
2.5.3
OSC Mode Programming
The OSC
out pin can be optimized for operating with an external crystal resonator or an external reference frequency source (i.e.
TCXO). If the application uses an external reference frequency source, the current dissipation of the LMX1600/01/02 can be
reduced with the Logic Mode (0.5 mA typ.). Crystal Mode should be used when an external crystal resonator is used. Logic Mode
is used when an external reference frequency source is used. In Logic Mode, OSC
OUT should be connected to a 30 pF capacitor
to ground for optimum performance.
When the FoLD output state is selected to CMOS high/low levels, the OSC Mode is forced to Crystal Mode.
FoLD
OSC
OUT
3
210
AUX_R[17]
AUX_R[16]
AUX_R[15]
AUX_R[14]
0
Crystal Mode
0
1
Crystal Mode
All Other States
0
Logic Mode
1
Crystal Mode
2.5.4
Typical Crystal Oscillator Circuit
A typical implementation of a 10 MHz crystal oscillator with the OSC
OUT pin in Crystal Mode is shown below.
10012918
LMX1600/LMX1601/LMX1602
www.national.com
13
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相关代理商/技术参数 |
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| LMX1600TMX | 功能描述:IC FREQ SYNTHESZR 2.0GHZ 16TSSOP 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:* |
| LMX1600TMX/NOPB | 制造商:Texas Instruments 功能描述:PLL Frequency Synthesizer Dual 16-Pin TSSOP T/R |
| LMX1601 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum⑩ Low Cost Dual Frequency Synthesizer |
| LMX1601SLB | 制造商:NSC 制造商全称:National Semiconductor 功能描述:PLLatinum⑩ Low Cost Dual Frequency Synthesizer |
| LMX1601SLBX/NOPB | 功能描述:IC PLLANTINUM SYNTHESZR LAM 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:* |
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