dsp56800 Freescale Semiconductor, Inc, dsp56800 Datasheet - Page 30

• Manufacturer Part Number: dsp56800
• Description: 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

Introduction
The equivalent circuit using a DSC is shown in Figure 1-5 on page 1-7. This application requires an
analog-to-digital (A/D) converter and digital-to-analog (D/A) converter in addition to the DSC. Even with
these additional parts, the component count can be lower using a DSC due to the high integration available
with current components.
1-6
Sensor
From
Input
x(t)
Frequency
t
x(t)
f
c
Filter
Ideal
Figure 1-4. Analog Signal Processing
R
i
DSP56800 Family Manual
Frequency Characteristics
f
y t ( )
---------
x t ( )
Analog Filter
=
–
R f
----- -
R i
R
+
–
----------------------------
1
f
C
+
f
jwR f C f
1
y(t)
Actuator
Output
y(t)
To
Freescale Semiconductor
Actual
Filter
AA0003