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參數(shù)資料
| 型號： | LC72131M |
| 元件分類： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 40 MHz, PDSO20 |
| 封裝： | MFP20 |
| 文件頁數(shù)： | 7/23頁 |
| 文件大?。?/td> | 405K |
| 代理商： | LC72131M |
Programmable Divider Structure
Note: * Don’t care.
1. Programmable Divider Calculation Examples
FM, 50 kHz steps (DVS = 1, SNS = *, FMIN selected)
FM RF = 90.0 MHz (IF = +10.7 MHz)
FM VCO = 100.7 MHz
PLL fref = 25 kHz (R0 to R1 = 1, R2 to R3 = 0)
100.7 MHz (FM VCO)
÷ 25 kHz (fref) ÷ 2 (FMIN: divide-by-two prescaler) = 2014 → 07DE (HEX)
SW, 5 kHz steps (DVS = 0, SNS = 1, AMIN high-speed side selected)
SW RF = 21.75 MHz (IF = +450 kHz)
SW VCO = 22.20 MHz
PLL fref = 5 kHz (R0 = R2 = 0, R1 = R3 = 1)
22.2 MHz (SW VCO)
÷ 5 kHz (fref) = 4440 → 1158 (HEX)
MW, 10 kHz steps (DVS = 0, SNS = 0, AMIN low-speed side selected)
MW RF = 1000 kHz (IF = +450 kHz)
MW VCO = 1450 kHz
PLL fref = 10 kHz (R0 to R2 = 0, R3 = 1)
1450 kHz (MW VCO)
÷ 10 kHz (fref) = 145 → 091 (HEX)
No. 4921-15/23
LC72131, 72131M
DVS
SNS
Input pin
Set divisor
Actual divisor: N
Input frequency range (MHz)
A
1
*
FMIN
272 to 65535
Twice the set value
10 to 160
B
0
1
AMIN
272 to 65535
The set value
2 to 40
C
0
AMIN
4 to 4095
The set value
0.5 to 10
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| LC72131MDTRM | 制造商:Panasonic Industrial Company 功能描述:IC |
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| LC72132M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:AM/FM PLL Frequency Synthesizer |
| LC72133M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning |
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