參數(shù)資料
型號： MC9S12DP256CCPV
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
封裝： LQFP-112
文件頁數(shù)： 11/126頁
文件大?。?/td> 3405K
代理商： MC9S12DP256CCPV
MC9S12DP256B Device User Guide — V02.15
110
The loop bandwidth fC should be chosen to fulfill the Gardner’s stability criteria by at least a factor of 10,
typical values are 50.
ζ = 0.9 ensures a good transient response.
And finally the frequency relationship is defined as
With the above inputs the resistance can be calculated as:
The capacitance Cs can now be calculated as:
The capacitance Cp should be chosen in the range of:
The stabilization delays shown in Table A-16 are dependant on PLL operational settings and external
component selection (e.g. crystal, XFC filter).
A.5.3.2 Jitter Information
The basic functionality of the PLL is shown in Figure A-2. 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 A-3.
f
C
2
ζ f
ref
πζ
1
ζ
2
+
------------------------------------------
1
50
------
f
C
f
ref
450
--------------
ζ 0.9
=
(
)
;
<
→
<
n
f
VCO
f
ref
-------------
2
synr
1
+
()
==
R
2
π nf
C
KΦ
-----------------------------
=
C
s
2
ζ
2
π f
C R
----------------------
0.516
f
C R
---------------
ζ 0.9
=
()
;
≈
=
C
s 20
C
p
C
s 10
≤≤
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PDF資料
PDF描述
MC9S12DT256BCPV 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
MC9S12DT256CCPV 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
MC9S12DG256BVPV 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
MC9S12DJ256CCFU 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
MC9S12DG256CCPV 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
相關代理商/技術參數(shù)
參數(shù)描述
MC9S12DP512CPV 功能描述:IC MCU 512K FLASH 25MHZ 112-LQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HCS12 其它有關文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標準包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND
MC9S12DP512CPVE 功能描述:16位微控制器 - MCU 16 BIT 25MHz RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT
MC9S12DP512CPVER 功能描述:16位微控制器 - MCU 512K FLASH HCS12 MCU RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT
MC9S12DP512CPVER 制造商:Freescale Semiconductor 功能描述:Microcontroller
MC9S12DP512MPVE 功能描述:16位微控制器 - MCU 16 Bit 25MHz RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT
發(fā)布緊急采購，3分鐘左右您將得到回復。

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

*
*
*