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參數(shù)資料
| 型號： | LMX1600 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | PLLatinum Low Cost Dual Frequency Synthesizer(PLLatinum技術低耗雙通道頻率合成器) |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 2000 MHz, PDSO16 |
| 封裝： | PLASTIC, TSSOP-16 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 217K |
| 代理商： | LMX1600 |
2.0
Programming Description
(Continued)
2.5.3
The OSC
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 re-
duced 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.
OSC Mode Programming
FoLD
OSC
OUT
3
2
1
0
AUX_R[17]
0
0
AUX_R[16]
0
0
All Other States
AUX_R[15]
0
0
AUX_R[14]
0
1
0
1
Crystal Mode
Crystal Mode
Logic Mode
Crystal Mode
2.5.4
A typical implementation of a 10 MHz crystal oscillator with the OSC
OUT
pin in Crystal Mode is shown below.
Typical Crystal Oscillator Circuit
2.6
SERIAL DATA INPUT TIMING
Note 17:
Data shifted into register on clock rising edge.
Data is shifted in MSB first.
TEST CONDITIONS:
The Serial Data Input Timing is tested using a symmetrical waveform around V
CC
/2. The test waveform has
an edge rate of 0.6 V/ns with amplitudes of 2.2V
@
V
CC
= 2.7V.
DS100129-18
DS100129-19
L
www.national.com
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LMX1600_05 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Low Cost Dual Frequency Synthesizer |
| LMX1600EVAL | 功能描述:其他開發(fā)工具 LOW COST DUAL PLL EVAL BOARD RoHS:否 制造商:Parallax 產品:ELEV-8 Hex Upgrade Kits 類型:Robotics 工具用于評估:ELEV-8 Quadcopter 工作電源電壓: |
| LMX1600SLB | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum⑩ Low Cost Dual Frequency Synthesizer |
| LMX1600SLBX | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| LMX1600SLBX/NOPB | 功能描述:IC FREQ SYNTH DUAL 16LAMINATECSP 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:* 供應商設備封裝:* 包裝:* |
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