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SM320F28335PTPMEP Datasheet, PDF (148/167 Pages) Texas Instruments – Digital Signal Controller (DSC) | |||
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SM320F28335-EP
SPRS581D â JUNE 2009 â REVISED MAY 2012
www.ti.com
Rs
ADCIN0
Source
ac
Signal
Ron
1 kâ¦
Switch
Cp
10 pF
Ch
1.64 pF
Typical Values of the Input Circuit Components:
Switch Resistance (Ron):
Sampling Capacitor (Ch):
Parasitic Capacitance (Cp):
Source Resistance (Rs):
1 kâ¦
1.64 pF
10 pF
50 â¦
Figure 6-33. ADC Analog Input Impedance Model
28x DSP
6.15.2 Definitions
Reference Voltage
The on-chip ADC has a built-in reference, which provides the reference voltages for the ADC.
Analog Inputs
The on-chip ADC consists of 16 analog inputs, which are sampled either one at a time or two channels at
a time. These inputs are software-selectable.
Converter
The on-chip ADC uses a 12-bit four-stage pipeline architecture, which achieves a high sample rate with
low power consumption.
Conversion Modes
The conversion can be performed in two different conversion modes:
⢠Sequential sampling mode (SMODE = 0)
⢠Simultaneous sampling mode (SMODE = 1)
148 Electrical Specifications
Copyright © 2009â2012, Texas Instruments Incorporated
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Product Folder Link(s): SM320F28335-EP
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