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參數(shù)資料
| 型號： | LC72134M |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Dual PLL Frequency Synthesizer for FM Tuner Systems(用于FM調(diào)諧器的雙鎖相環(huán)頻率合成器) |
| 中文描述： | 雙鎖相環(huán)頻率合成調(diào)頻調(diào)諧器系統(tǒng)（用于調(diào)頻調(diào)諧器的雙鎖相環(huán)頻率合成器） |
| 文件頁數(shù)： | 19/27頁 |
| 文件大?。?/td> | 463K |
| 代理商： | LC72134M |
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Structure of the IF Counter
The LC72134M IF counter is a 20-bit binary counter, and takes the IF signal from the IFIN1 or IFIN2/I1 pin as its input.
The result of the count can be read out serially MSB first from the DO pin.
The IF frequency (FC) is measured by determining how many pulses were input to the IF counter in the stipulated measurement time, GT.
Fc = GT
×
GT)
C: Counted value (the number of pulses)
No. 5814-19/27
LC72134M
GT1
GT0
Measurement time
Measurement time (GT)
Wait time (t
WU
)
3 to 4 ms
0
0
4 ms
0
1
8
3 to 4
1
0
32
7 to 8
1
1
64
7 to 8
IF Counter Frequency Measurement Examples
When the measurement time (GT) is 32 ms and the counted value (C) is 53980 (hexadecimal) or 342,400 decimal.
IF frequency (FC) = 342400
÷
32 ms = 10.7 MHz
When the measurement time (GT) is 8 ms and the counted value (C) is E10 (hexadecimal) or 3600 decimal.
IF frequency (FC) = 3600
÷
8 ms = 450 kHz
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC72135M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning |
| LC72135MA-AE | 功能描述:時鐘合成器/抖動清除器 RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| LC72135MA-Q-AE | 制造商:ON Semiconductor 功能描述:PLL FREQUENCY SYNTHESIZER - Tape and Reel 制造商:ON Semiconductor 功能描述:REEL / PLL FREQUENCY SYNTHESIZER |
| LC72135M-Q-TLM-E | 制造商:SANYO Semiconductor Co Ltd 功能描述: |
| LC72136 | 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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