SPC5604PGF0MLL6 Freescale Semiconductor, SPC5604PGF0MLL6 Datasheet - Page 65

• Manufacturer Part Number: SPC5604PGF0MLL6
• Description: IC MCU 32BIT 512KB FLASH 100LQFP
• Manufacturer: Freescale Semiconductor
• Series: MPC56xx Qorivvar

Specifications of SPC5604PGF0MLL6

• Core Processor: e200z0h
• Core Size: 32-Bit
• Speed: 64MHz
• Connectivity: CAN, FlexRay, LIN, SPI, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 68
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 64K x 8
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 30x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.14.1
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; further, 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 source impedance value 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.
Freescale Semiconductor
Input impedance and ADC accuracy
code out
1023
1022
1021
1020
1019
1018
Offset Error OSE
7
6
5
4
3
2
1
0
1
Figure 14. ADC characteristics and error definitions
2
MPC5604P Microcontroller Data Sheet, Rev. 7
3
4
1 LSB (ideal)
5
6
(4)
(3)
7
(2)
(5)
V
1017 1018 1019 1020 1021 1022 1023
in(A)
(LSB
(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
ideal
(1)
Offset Error OSE
)
1 LSB ideal = V
DD_ADC
Gain Error GE
/ 1024
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