參數(shù)資料
型號(hào)： TLC2555EVM
廠商： Texas Instruments, Inc.
英文描述： TLC2555EVM(TLC2555評(píng)估板)
中文描述： TLC2555EVM（TLC2555評(píng)估板）
文件頁(yè)數(shù)： 13/22頁(yè)
文件大?。?/td> 155K
代理商： TLC2555EVM
Power Supplies
1-5
EVM Overview
1.6
Power Supplies
The EVM requires three power supplies.
1) A dual-tracking
±
12-V supply for the dual-supply op amps U1 and U3. The
voltage reference (REF02) is supplied by the +12-V supply. Jumpers W6
and W7 are default settings for this voltage condition.
2) A single +5-V supply is used for the ADC (DUT) and the digital interface.
Op amps U1 and U3 can be used in a unipolar power supply mode (+5 V
and ground) by shorting pins 2-3 of jumper W6 and W7.
1.7
Voltage References
The EVM can be configured to use its onboard reference (REF02) by
connecting pins1-2 of jumper W3. For an external reference source, configure
W3 by connecting pins 2-3 and a DC supply reference voltage to pin 18 of J1.
1.8
EVM Operation
DC voltages can be applied to the EVM board either through the 10-pin
standard power connector (J3) or the test points labeled
–
12 V, +12 V, +5, and
GND. Apply the appropriate current limited (500 mA max) DC sources to the
board prior to connecting the analog input and digital control signals. The
digital control signals are applied directly to P2, or the EVM can be connected
to a DSP interface board. The interface board is equipped with a power
connector to mate with the 10-pin power connector (J3) on the EVM to supply
the required voltages.
There are a number of interface options available for this style of EVM. Consult
the product folder for a complete list of DSP interface cards and optional
analog interface modules. If the interface options listed are not suitable,
contact the PIC at (972) 644-5580, for the latest information.
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