参数资料
型号: PPC5605BCLQ64
厂商: Freescale Semiconductor
文件页数: 86/112页
文件大小: 0K
描述: MCU 32BIT 768K 64MHZ
标准包装: 90
系列: MPC56xx Qorivva
核心处理器: e200z0h
芯体尺寸: 32-位
速度: 64MHz
连通性: CAN,I²C,LIN,SCI,SPI
外围设备: POR,PWM,WDT
输入/输出数: 121
程序存储器容量: 768KB(768K x 8)
程序存储器类型: 闪存
EEPROM 大小: 4K x 16
RAM 容量: 64K x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 3.6 V
数据转换器: A/D 15x10b,5x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 144-LQFP
包装: 托盘
Electrical characteristics
MPC5607B Microcontroller Data Sheet, Rev. 7
Freescale Semiconductor
75
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 17. Input equivalent circuit (precise channels)
V
A
R
S
R
F
+
R
EQ
---------------------
1
2
---LSB
RF
CF
RS
RL
RSW1
CP2
CS
VDD
Sampling
Source
Filter
Current Limiter
EXTERNAL CIRCUIT
INTERNAL CIRCUIT SCHEME
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
CP1
RAD
Channel
Selection
VA
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PPC5605BCLU64 功能描述:MCU 32BIT 768K 64MHZ RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:MPC56xx Qorivva 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:260 系列:73S12xx 核心处理器:80515 芯体尺寸:8-位 速度:24MHz 连通性:I²C,智能卡,UART/USART,USB 外围设备:LED,POR,WDT 输入/输出数:9 程序存储器容量:64KB(64K x 8) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:2K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-VFQFN 裸露焊盘 包装:管件
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