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參數(shù)資料
| 型號： | M66239FP |
| 廠商： | Renesas Technology Corp. |
| 英文描述： | High Speed Standard Clock Generator With Frequency Synthesizer |
| 中文描述： | 高速標準時鐘發(fā)生器，頻率合成器 |
| 文件頁數(shù)： | 15/24頁 |
| 文件大小： | 312K |
| 代理商： | M66239FP |
M66239FP
Rev.1.00 Mar 16, 2005 page 22 of 23
Input Clock Change Sequence
When changing the frequency of the input clock, if being the inside of each range in the frequency range which is
specified in page 20, the change of the FSET is unnecessary but the lock of PLL sometimes comes when a frequency is
changed even if it is the inside of each range in the frequency range. When the frequency of the input clock changes in
each range in the frequency range and PLL comes off the lock condition, it adds that it takes time by locking 10 ms
once again. To get a stable output clock, after passing in the PLL lock time in the frequency of input clock or it after
phase change, enter TR signal. The output clock which was stable after entry is gotten in the TR signal. About the
change of the frequency which exceeds the frequency range which is specified in page 20, for the purpose of FSET[2:0]
to be changed, the sequence of power on must be done.
The sequence when changing an entry frequency in each range in the frequency range
over 500 ns
CKO
MCLK
TR
10 ms
tsp
Clock stable
Clock change
Figure 12 Input Clock Change Sequence
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M66239FP(#RB0S) | 制造商:Renesas Electronics Corporation 功能描述: |
| M66240 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:4-CH 16-BIT PWM GENERATOR |
| M66240FP | 功能描述:IC REG CTRLR PWM 24SOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| M66240FP#TB0Q | 制造商:Renesas Electronics Corporation 功能描述:MCU 4 CH 16 BIT PWM GENERATOR - Trays |
| M66240P | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:4-CH 16-BIT PWM GENERATOR |
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