參數(shù)資料
型號： TMS320M642AGDK5
廠商： Texas Instruments, Inc.
元件分類： 數(shù)字信號處理
英文描述： Video/Imaging Fixed-Point Digital Signal Processor
中文描述： 視頻/影像定點數(shù)字信號處理器
文件頁數(shù)： 111/123頁
文件大?。?/td> 1205K
代理商： TMS320M642AGDK5
www.ti.com
ac
R
s
ADCIN0
C
p
10 pF
R
on
1 k
1.64 pF
C
h
Switch
Typical Values of the Input Circuit Components:
Switch Resistance (R
on
):
Sampling Capacitor (C
h
):
Parasitic Capacitance (C
p
):
Source Resistance (R
s
):
1 k
1.64 pF
10 pF
50
28x DSP
Source
Signal
6.9.7.2
Definitions
TMS320F2808, TMS320F2806
TMS320F2801, UCD9501
Digital Signal Processors
SPRS230F–OCTOBER 2003–REVISED SEPTEMBER 2005
Figure 6-22. ADC Analog Input Impedance Model
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)
Electrical Specifications
111
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