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參數(shù)資料
| 型號： | LMX2531LQ1500EX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 80 MHz, QCC36 |
| 封裝： | 6 X 6 MM, 0.8 MM, LCC-36 |
| 文件頁數(shù)： | 3/24頁 |
| 文件大?。?/td> | 458K |
| 代理商： | LMX2531LQ1500EX |
2.02 Initialization Sequence
The initial loading sequence from a cold start is described below. The registers must be program in order shown.
REGISTE
R
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
DATA[19:0]
C3 C2 C1 C0
R5
INIT1
1
0
1
0
1
0
1
R5
INIT2
1
0
1
0
1
R5
1
0
1
0
1
0
1
R12
0
1
0
1
0
1
0
1
0
R9
See individual section for R9 programming information.
1
0
1
R8
See individual section for Register R8 programming information.
Register R8 only needs to be programmed for a few options of the LMX2531LQ1500E and
and only in the case that the OSCin frequency is greater than 40 MHz.
1
0
R7
See individual section for Register R7 programming information.
0
1
R6
See individual section for Register R6 programming information.
0
1
0
R4
See individual section for Register R4 programming information.
Register R4 only needs to be programmed if FastLock is used.
0
1
0
R3
See individual section for Register R3 programming information.
0
1
R2
See individual section for Register R2 programming information.
0
1
0
R1
See individual section for Register R1 programming information.
0
1
R0
See individual section for Register R0 programming information.
0
Note: There must be a minimum of 10 mS between the time when R5 is last loaded and when R1 is loaded to ensure time for the
LDOs to power up properly.
11
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LMX2531LQ1500E
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LMX2531LQ1515E | 制造商:Texas Instruments 功能描述:PLL Frequency Synthesizer Single 1450MHz to 1580MHz 36-Pin LLP EP T/R 制造商:Texas Instruments 功能描述:CLOCK SYNTHESIZER 1.6GHZ 36LLP |
| LMX2531LQ1515E/NOPB | 功能描述:鎖相環(huán) - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)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 |
| LMX2531LQ1570E | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PLLatinum High Performance Frequency Synthesizer System with Integrated VCO |
| LMX2531LQ1570E/NOPB | 功能描述:鎖相環(huán) - PLL RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)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 |
| LMX2531LQ1650E | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:High Performance Frequency Synthesizer System with Integrated VCO |
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