MC68HC908LJ12CPB FREESCALE [Freescale Semiconductor, Inc], MC68HC908LJ12CPB Datasheet - Page 308

• Manufacturer Part Number: MC68HC908LJ12CPB
• Description: 8-bit microcontroller units
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

15.7.1 ADC Voltage In (V
15.7.2 ADC Analog Power Pin (V
15.7.3 ADC Voltage Reference High Pin (V
15.7.4 ADC Voltage Reference Low Pin (V
MC68HC908LJ12
Freescale Semiconductor
NOTE:
NOTE:
—
Rev. 2.1
V
ADC module.
The ADC analog portion uses V
pin to the same voltage potential as V
necessary to ensure clean V
Route V
capacitors as close as possible to the package.
V
Connect the V
be a finite current associated with V
Specifications).
Route V
capacitors as close as possible to the package.
V
to the same voltage potential as V
associated with V
ADIN
REFH
REFL
ADIN
is the input voltage signal from one of the nine channels to the
is the lower reference supply for the ADC. Connect the V
is the power supply for setting the reference voltage V
DDA
REFH
)
Analog-to-Digital Converter (ADC)
DDA
carefully for maximum noise immunity and place bypass
carefully for maximum noise immunity and place bypass
REFH
)
REFL
pin to the same voltage potential as V
REFL
REFH
(see
)
)
Section 23. Electrical
DDA
DDA
for good results.
SSA
REFH
as its power pin. Connect the V
DD
. There will be a finite current
. External filtering may be
(see
Analog-to-Digital Converter (ADC)
Section 23. Electrical
Specifications).
DDA
Technical Data
. There will
REFH
REFL
.
DDA
pin
309