參數(shù)資料
型號(hào)： MAC7142CPV50
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 50 MHz, MICROCONTROLLER, PQFP100
封裝： LQFP-100
文件頁(yè)數(shù)： 9/60頁(yè)
文件大?。?/td> 760K
代理商： MAC7142CPV50
ElectricalCharacteristics
MAC7100 Microcontroller Family Hardware Specifications, Rev. 1.1.1
Preliminary
Freescale Semiconductor
17
3.8.2.1
Jitter Information
With each transition of the clock fCMP, the deviation from the reference clock fREF is measured and input
voltage to the VCO is adjusted accordingly. The adjustment is done continuously with no abrupt changes
in the clock output frequency. Noise, voltage, temperature and other factors cause slight variations in the
control loop resulting in a clock jitter. This jitter affects the real minimum and maximum clock periods as
illustrated in Figure 4. It is important to note that the pre-scaler used by timers and serial modules will
eliminate the effect of PLL jitter to a large extent.
Figure 4. Jitter Definitions
The relative deviation of tNOM is at its maximum for one clock period, and decreases towards zero for
larger number of clock periods (N). Thus, jitter is defined as:
Eqn. 15
For N
< 100, the following equation is a good fit for the maximum jitter:
Eqn. 16
Figure 5. Maximum Bus Clock Jitter Approximation
0
tMIN1
12
3
N–1
N
tNOM
tMAX1
tMIN(N)
tMAX(N)
JN
()
max 1
t
MAX N
()
Nt
NOM
--------------------
–1
t
MIN N
()
Nt
NOM
--------------------
–
,
=
JN
()
j
1
N
--------
j
2
+
=
01
5
10
20
15
N
J(N)
相關(guān)PDF資料
PDF描述
MAC7142MPV50 32-BIT, FLASH, 50 MHz, MICROCONTROLLER, PQFP100
MAC7101CPV50 32-BIT, FLASH, 50 MHz, MICROCONTROLLER, PQFP144
MAC7131CVF50R2 32-BIT, FLASH, 50 MHz, MICROCONTROLLER, PBGA208
MAC7121CPV50XX MICROCONTROLLER, PQFP112
MAC7131CVM50XX MICROCONTROLLER, PBGA208
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAC7142CVF50 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontroller Family Hardware Specifications
MAC7142CVM50 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontroller Family Hardware Specifications
MAC7142MAF50 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontroller Family Hardware Specifications
MAC7142MAG50 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontroller Family Hardware Specifications
MAC7142MFU50 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontroller Family Hardware Specifications
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*