參數資料
型號: PPC5605BCLQ64
廠商: Freescale Semiconductor
文件頁數: 85/112頁
文件大?。?/td> 0K
描述: MCU 32BIT 768K 64MHZ
標準包裝: 90
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
外圍設備: POR,PWM,WDT
輸入/輸出數: 121
程序存儲器容量: 768KB(768K x 8)
程序存儲器類型: 閃存
EEPROM 大小: 4K x 16
RAM 容量: 64K x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
數據轉換器: A/D 15x10b,5x12b
振蕩器型: 內部
工作溫度: -40°C ~ 85°C
封裝/外殼: 144-LQFP
包裝: 托盤
MPC5607B Microcontroller Data Sheet, Rev. 7
Electrical characteristics
Freescale Semiconductor
74
Figure 16. ADC_0 characteristic and error definitions
4.17.2
Input impedance and ADC accuracy
In the following analysis, the input circuit corresponding to the precise channels is considered.
To preserve the accuracy of the A/D converter, it is necessary that analog input pins have low AC impedance. Placing a capacitor
with good high frequency characteristics at the input pin of the device can be effective: the capacitor should be as large as
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.
(2)
(1)
(3)
(4)
(5)
Offset Error (EO)
Gain Error (EG)
1 LSB (ideal)
1023
1022
1021
1020
1019
1018
5
4
3
2
1
0
7
6
1
2
3
4
5
6
7
1017 1018 1019 1020 1021 1022 1023
(1) Example of an actual transfer curve
(2) The ideal transfer curve
(3) Differential non-linearity error (DNL)
(4) Integral non-linearity error (INL)
(5) Center of a step of the actual transfer curve
1 LSB ideal = VDD_ADC / 1024
Vin(A) (LSBideal)
code out
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PPC5605BCLU64 功能描述:MCU 32BIT 768K 64MHZ RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:MPC56xx Qorivva 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:260 系列:73S12xx 核心處理器:80515 芯體尺寸:8-位 速度:24MHz 連通性:I²C,智能卡,UART/USART,USB 外圍設備:LED,POR,WDT 輸入/輸出數:9 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:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數據轉換器:- 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-VFQFN 裸露焊盤 包裝:管件
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