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參數(shù)資料
| 型號(hào)： | LC72137 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | PLL Frequency Synthesizer for Electronic Tuning(用于電子調(diào)諧的鎖相環(huán)頻率合成器) |
| 中文描述： | 鎖相環(huán)頻率合成器電子調(diào)諧（用于電子調(diào)諧的鎖相環(huán)頻率合成器） |
| 文件頁數(shù)： | 17/22頁 |
| 文件大小： | 348K |
| 代理商： | LC72137 |
Unlock Detection Timing
1. Unlock Detection Determination Timing
Unlock detection is performed in the reference frequency (fref) period (interval). Therefore, in principle, unlock
determination requires a time longer than the period of the reference frequency. However, immediately after changing
the divisor N (frequency) unlock detection must be performed after waiting at least two periods of the reference
frequency.
No. 5743-17/22
LC72137, 72137M
Figure 1 Unlock Detection Timing
For example, if fref is 1 kHz (and thus the period is 1 ms), after changing the divisor N, the system must wait at least
2 ms before checking for the unlocked state.
Figure 2 Circuit Structure
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| LC72140 | PLL Frequency Synthesizer(鎖相環(huán)頻率合成器) |
| LC72144M | PLL Frequency Synthesizer(鎖相環(huán)頻率合成器) |
| LC72146 | PLL Frequency Synthesizer for Electronic Tuning(用于電子調(diào)諧的鎖相環(huán)頻率合成器) |
| LC72147V | PLL Frequency Synthesizer for Electronic Tuning in Car Audio Systems |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC72137_11 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer |
| LC72137M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizer for Electronic Tuning |
| LC72137MA-AE | 功能描述:時(shí)鐘合成器/抖動(dòng)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 |
| LC72140 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizers |
| LC72140M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:PLL Frequency Synthesizers |
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