參數(shù)資料
型號(hào)： SPC5604BF2MLQ6
廠商： Freescale Semiconductor
文件頁數(shù)： 78/109頁
文件大小： 0K
描述： IC MCU 32BIT 512KB FLASH 144LQFP
標(biāo)準(zhǔn)包裝： 60
系列： MPC56xx Qorivva
核心處理器： e200z0h
芯體尺寸： 32-位
速度： 64MHz
連通性： CAN，I²C，LIN，SCI，SPI
外圍設(shè)備： DMA，POR，PWM，WDT
輸入/輸出數(shù)： 123
程序存儲(chǔ)器容量： 512KB（512K x 8）
程序存儲(chǔ)器類型： 閃存
RAM 容量： 32K x 8
電壓 - 電源 (Vcc/Vdd)： 3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 36x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 125°C
封裝/外殼： 144-LQFP
包裝： 托盤
MPC5604B/C Microcontroller Data Sheet, Rev. 11.1
Package pinouts and signal descriptions
Freescale Semiconductor
70
possible, ideally infinite. This capacitor contributes to attenuating the noise present on the input pin; furthermore, it sources
charge during the sampling phase, when the analog signal source is a high-impedance source.
A real filter can typically be obtained by using a series resistance with a capacitor on the input pin (simple RC filter). The RC
filtering may be limited according to the value of source impedance of the transducer or circuit supplying the analog signal to
be measured. The filter at the input pins must be designed taking into account the dynamic characteristics of the input signal
(bandwidth) and the equivalent input impedance of the ADC itself.
In fact a current sink contributor is represented by the charge sharing effects with the sampling capacitance: being CS and Cp2
substantially two switched capacitances, with a frequency equal to the conversion rate of the ADC, it can be seen as a resistive
path to ground. For instance, assuming a conversion rate of 1 MHz, with CS+Cp2 equal to 3 pF, a resistance of 330 k is
obtained (REQ = 1 / (fc ×(CS+Cp2)), where fc represents the conversion rate at the considered channel). To minimize the error
induced by the voltage partitioning between this resistance (sampled voltage on CS+Cp2) and the sum of RS + RF, the external
circuit must be designed to respect the Equation 4:
Eqn. 4
Equation 4 generates a constraint for external network design, in particular on a resistive path.
Figure 20. Input equivalent circuit (precise channels)
VA
RS RF
+
REQ
---------------------
1
2
---LSB
RF
CF
RS
RL
RSW1
CP2
CS
VDD
Sampling
Source
Filter
Current Limiter
EXTERNAL CIRCUIT
INTERNAL CIRCUIT SCHEME
CP1
RAD
Channel
Selection
VA
RS: Source impedance
RF: Filter resistance
CF: Filter capacitance
RL: Current limiter resistance
RSW1: Channel selection switch impedance
RAD: Sampling switch impedance
CP: Pin capacitance (two contributions, CP1 and CP2)
CS: Sampling capacitance
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SPC5604BF2VLQ6 制造商:Freescale Semiconductor 功能描述:
SPC5604BK0MLQ6 功能描述:e200z0h MPC56xx Qorivva Microcontroller IC 32-Bit 64MHz 512KB (512K x 8) FLASH 144-LQFP (20x20) 制造商:nxp usa inc. 系列:MPC56xx Qorivva 包裝:托盤 零件狀態(tài):在售 核心處理器:e200z0h 核心尺寸:32-位 速度:64MHz 連接性:CAN，I2C，LIN，SCI，SPI 外設(shè):DMA，POR，PWM，WDT I/O 數(shù):123 程序存儲(chǔ)容量:512KB（512K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 容量:4K x 16 RAM 容量:32K x 8 電壓 - 電源（Vcc/Vdd）:3 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 36x10b 振蕩器類型:內(nèi)部 工作溫度:-40°C ~ 125°C（TA） 封裝/外殼:144-LQFP 供應(yīng)商器件封裝:144-LQFP（20x20） 標(biāo)準(zhǔn)包裝:300
SPC5604CECLQ 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontroller
SPC5604CECLU 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontroller
SPC5604CECMG 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontroller
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