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参数资料
| 型号： | MPC5602CF1MLL6 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | MICROCONTROLLER, PQFP100 |
| 封装： | 14 X 14 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, LQFP-100 |
| 文件页数： | 78/106页 |
| 文件大小： | 1693K |
| 代理商： | MPC5602CF1MLL6 |
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Electrical characteristics
MPC5604B/C Microcontroller Data Sheet, Rev. 8
Freescale Semiconductor
73
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: CS being
substantially a switched capacitance, 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 equal to 3 pF, a resistance of 330 k is obtained (REQ
= 1 / (fc*CS), 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) and the sum of RS + RF + RL + RSW + RAD, the external circuit
must be designed to respect the Equation 4:
Eqn. 4
VA
RS RF RL RSW RAD
++
+
REQ
---------------------------------------------------------------------------
1
2
---LSB
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC5602CVLL6 | 制造商:Freescale Semiconductor 功能描述:256K FLASH, 32K RAM - Trays |
| MPC5602D | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Up to 256 KB on-chip Code Flash supported with Flash controller and ECC |
| MPC5602DPB | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:MPC5602D Microcontroller Product Brief |
| MPC5602DXLH | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Up to 256 KB on-chip Code Flash supported with Flash controller and ECC |
| MPC5602DXLL | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Up to 256 KB on-chip Code Flash supported with Flash controller and ECC |
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