參數(shù)資料
型號： MC68HC08GP8ACFB
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8.2 MHz, MICROCONTROLLER, PQFP44
封裝： PLASTIC, QFP-44
文件頁數(shù)： 92/126頁
文件大?。?/td> 4243K
代理商： MC68HC08GP8ACFB
Clock Generator Module (CGM)
Data Sheet
MC68HC08GP8A
68
Clock Generator Module (CGM)
MOTOROLA
4.8.3 Choosing a Filter
As described in 4.8.2 Parametric Influences on Reaction Time, the external filter
network is critical to the stability and reaction time of the PLL. The PLL is also
dependent on reference frequency and supply voltage.
Figure 4-10 shows two types of filter circuits. In low-cost applications, where
stability and reaction time of the PLL are not critical, the three component filter
network of Figure 4-10 (B) can be replaced by a single capacitor, CF, shown in
Figure 4-10 (A). Refer to Table 4-4 for recommended filter components at various
reference frequencies. For reference frequencies between the values listed in the
table, extrapolate to the nearest common capacitor value. In general, a slightly
larger capacitor provides more stability at the expense of increased lock time.
Figure 4-10. PLL Filter
Table 4-4. Example Filter Component Values
fRCLK
CF1
CF2
RF1
CF
32 kHz
0.15
F
15 nF
2 K
0.22
F
40 kHz
0.12
F
12 nF
2 K
0.18
F
50 kHz
0.10
F
10 nF
2 K
0.18
F
60 kHz
82 nF
8.2 nF
2 K
0.12
F
70 kHz
68 nF
6.8 nF
2 K
0.12
F
80 kHz
56 nF
5.6 nF
2 K
0.1
F
90 kHz
56 nF
5.6 nF
2 K
0.1
F
100 kHz
47 nF
4.7 nF
2 K
82 nF
CGMXFC
RF1
CF2
CF1
VSSA
CGMXFC
CF
VSSA
(A)
(B)
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相關(guān)PDF資料
PDF描述
MC68HC08JB1DWE 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PDSO20
MC68HC08JB1DW 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PDSO20
MC68HC08KH12AIPB 8-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP52
MC68HC08KL8FB 8-BIT, OTPROM, 1.5 MHz, MICROCONTROLLER, PQFP52
MC68HC08KL8B 8-BIT, OTPROM, 1.5 MHz, MICROCONTROLLER, PDIP42
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC08GR16A 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC08GR32A 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC08GR32ACFA 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC08GR32ACFJ 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC08GR32ACFU 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

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

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

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*