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參數資料
| 型號： | LMX2531LQ1700E |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | PLLatinum High Performance Frequency Synthesizer System with Integrated VCO |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 80 MHz, QCC36 |
| 封裝： | 6 X 6 MM, 0.80 MM HEIGHT, LEAD FREE, LLP-36 |
| 文件頁數： | 16/25頁 |
| 文件大?。?/td> | 589K |
| 代理商： | LMX2531LQ1700E |
2.0 General Programming Information
(Continued)
2.3 REGISTER R2
2.3.1 R[5:0] -- R Counter Value
These bits determine the phase detector frequency. The OSCin frequency is divided by this R counter value. In single-ended
mode, values of 1-63 are allowed. In differential mode, only 1,2,4,8,16, and 32 are allowed.
R Value
0-1,3,5-7,9-15
,17-31,33-63
2
4
8
16
32
R[5:0]
Illegal State
0
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
2.3.2 DEN[21:12] and DEN[11:0]-- Fractional Denominator
These bits determine the fractional denominator. Note that the MSB bits for this word are in register R3. If the FDM bit is set to
0, DEN[21:12] are ignored.
DEN[21:12]
DEN[11:0]
Fractional
Denominator
0
...
4095
4096
...
4194303
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
L
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LMX2531LQ1700E/NOPB | 功能描述:鎖相環 - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray |
| LMX2531LQ1742 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:SYNTHESIZER SYSTEM POWERWISE SMD |
| LMX2531LQ1742/NOPB | 功能描述:鎖相環 - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray |
| LMX2531LQ1742FPEB | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Evaluation Board Operating Instructions |
| LMX2531LQ1778E | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum High Performance Frequency Synthesizer System with Integrated VCO |
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