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TSM-110-01-L-DV-P Datasheet(PDF) 7 Page - Texas Instruments

No. de Pieza. TSM-110-01-L-DV-P
Descripción  Contains all support circuitry needed for the ADS1148/ADS1248
Descarga  34 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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TSM-110-01-L-DV-P Datasheet(HTML) 7 Page - Texas Instruments

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EVM Operation
6.2
Usage as a Stand-Alone EVM
If using the EVM in your own system and not with the PDK hardware and software, observe the following
recommendations:
J13 should be removed if the external clock source is used and the TOUT pin is still driven by a
processor in order to avoid conflicts.
Jumper J2 can be used to always select the U8 oscillator (DVDD position) or allow the
onboard/external clock selection to be controlled by GPIO5 (J7.19) as shown in Figure 2.
Figure 2. Jumper J2
7
EVM Operation
This section provides information on the analog input, digital control, and general operating conditions of
the ADS1248EVM.
7.1
Analog Input
Each of the analog input sources can be applied directly to J8 (top or bottom side) or through
signal-conditioning modules available for the the modular EVM system. Terminal block J4 is connected in
parallel with the analog signal connections to J8. Each input has a 47
Ω/47pF RC filter in series with it, and
a differential 0.1
μF capacitor is placed across each input pair for use with differential signals.
7.2
Digital Control
The digital control signals can be applied directly to J7 (top or bottom side). The modular ADS1248EVM
can also be connected directly to a DSP or microcontroller interface board, such as the 5-6K Interface or
HPA-MCU Interface boards available from Texas Instruments, or the MMB3 if purchased as part of the
ADS1248EVM-PDK. For a list of compatible interface and/or accessory boards for the EVM or the
ADS1248, see the relevant product folder on the TI web site.
7
SBAU142B
– April 2009 – Revised May 2011
ADS1148EVM, ADS1248EVM, ADS1148EVM-PDK, and ADS1248EVM-PDK
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Copyright
© 2009–2011, Texas Instruments Incorporated


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