- 您现在的位置：买卖IC网 > PDF目录80482 > MAC7122VPV50XX (FREESCALE SEMICONDUCTOR INC) MICROCONTROLLER, PQFP112 PDF资料下载
参数资料
| 型号： | MAC7122VPV50XX |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | MICROCONTROLLER, PQFP112 |
| 封装： | 20 X 20 MM, 1.40 MM HEIGHT, 0.65 MM PITCH, MS-026BFA, LQFP-112 |
| 文件页数： | 9/56页 |
| 文件大小： | 757K |
| 代理商： | MAC7122VPV50XX |
第1页第2页第3页第4页第5页第6页第7页第8页当前第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页
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
相关PDF资料 |
PDF描述 |
|---|---|
| MAC7136CVF50XX | MICROCONTROLLER, PBGA208 |
| MAC7141VAF50XX | MICROCONTROLLER, PQFP100 |
| MCF51AG128VLF | RISC MICROCONTROLLER, PQFP48 |
| MPC8314VRAGDA | MICROPROCESSOR, PBGA620 |
| MSP430AFE232IPWR | 16-BIT, FLASH, RISC MICROCONTROLLER, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAC7122VVF50 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontroller Family Hardware Specifications |
| MAC7122VVM50 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontroller Family Hardware Specifications |
| MAC7124 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontroller Family Reference Manual |
| MAC7125 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontroller Family Reference Manual |
| MAC7126 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontroller Family Reference Manual |
发布紧急采购，3分钟左右您将得到回复。