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參數(shù)資料
| 型號： | LMX1600TM/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 2000 MHz, PDSO16 |
| 封裝： | PLASTIC, TSSOP-16 |
| 文件頁數(shù)： | 5/17頁 |
| 文件大?。?/td> | 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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|---|---|
| LMX1600TMX | 功能描述:IC FREQ SYNTHESZR 2.0GHZ 16TSSOP RoHS:是 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(biāo)準(zhǔn)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:* |
| 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 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Low Cost Dual Frequency Synthesizer |
| LMX1601SLB | 制造商:NSC 制造商全稱: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 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(biāo)準(zhǔn)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:* |
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