- 您現(xiàn)在的位置：買賣IC網 > PDF目錄45073 > MAC7112CPV50XX (FREESCALE SEMICONDUCTOR INC) MICROCONTROLLER, PQFP144 PDF資料下載
參數(shù)資料
| 型號： | MAC7112CPV50XX |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | MICROCONTROLLER, PQFP144 |
| 封裝： | 20 X 20 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, LQFP-144 |
| 文件頁數(shù)： | 9/56頁 |
| 文件大?。?/td> | 757K |
| 代理商： | MAC7112CPV50XX |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當前第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁
ElectricalCharacteristics
MAC7100 Microcontroller Family Hardware Specifications, Rev. 1.2
Preliminary
Freescale Semiconductor
17
The capacitance CP should be chosen in the range of:
Eqn. 14
The stabilization delays shown in Table 20 are dependant on PLL operational settings and external
component selection (for example, the crystal and XFC filter).
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
C
S
20
÷
C
P
C
S
10
÷
≤≤
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)
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:MAC7131
products
in
208
MAPBGA
packages
相關PDF資料 |
PDF描述 |
|---|---|
| MAC7101MPV50XX | MICROCONTROLLER, PQFP144 |
| MAC7101VAG50XX | MICROCONTROLLER, PQFP144 |
| MAC7112CAG50XX | MICROCONTROLLER, PQFP144 |
| MAC7112MAG50XX | MICROCONTROLLER, PQFP144 |
| MAC7112MPV50XX | MICROCONTROLLER, PQFP144 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAC7112CVF50 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontroller Family Hardware Specifications |
| MAC7112CVM50 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontroller Family Hardware Specifications |
| MAC7112MAF50 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontroller Family Hardware Specifications |
| MAC7112MAG40 | 制造商:Freescale Semiconductor 功能描述: |
| MAC7112MAG50 | 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，3分鐘左右您將得到回復。