Texas Instruments PSIEVM, User Manual

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U14 U15 U13
C85 C86
MSP430
Power Stage
ANALOG
OUT -
ANALOG
OUT +
SINGLE
ENDED
USB
DIF_VCM
JP8
GND
JP4
SE_VCM
JP1
FLT
BP
JP3
FLT
BP
JP7
OPEN = WP
PSIEVM Initial Setup
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4 SBAU289 – October 2017
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Precision Signal Injector EVM (PSIEVM)
Table 2. Jumper Position Description
Designator Position Setting
JP1 and JP3 Filter Enables filter following the audio DAC. The filter is used to minimize distortion and noise. When the
filter is enabled, the PSI should only output 2 kHz.
JP2 Not Installed If installed, this jumper can be used to allow for an external analog input signal. This option is
intended for debug purposes only and is not required for normal operation. Connector P1 must be
installed for the source of the signal (see
Section 6.3 ).
JP4 Ground Sets the offset to 0 V for single-ended output. To add a voltage offset, move this jumper to the
SE_VOS side (see
Section 3.2 ).
JP5 Not Installed If installed, this jumper can be used to select external power supplies. Also install header P7 for the
source of the power supplies. For general operation, the USB power is sufficient and external
power is not required (see section
Section 6.1 ).
JP7 Open EEPROM in Write Protect Mode . The EEPROM is programmed during manufacturing with
correction coefficients. To reprogram the correction coefficients, short jumper JP7. Since the
EEPROM is programed in the factory, it is not necessary to recalibrate the PSI.
JP8 Ground Sets VCM to 0 volts for Differential Output . To add a common-mode voltage, move this jumper to
the DIF_VCM side (see Section 3.2 ).
Figure 1. Initial Jumper Setting Illustration
2.2 EVM Graphical User Interface (GUI) Software Installation
Download the latest version of ADS8900BEVM-PDK Precision Signal Injector (PSI) GUI Installer from the
Tools and Software folder of the PSIEVM and run the GUI installer to install the EVM GUI software on the
user’s computer.
NOTE: Manually disable any antivirus software running on the computer before downloading the
EVM GUI installer onto the local hard disk. Otherwise, depending on the antivirus settings,
an error message may appear or the installer.exe file may be deleted.
Accept the license agreements and follow the on-screen instructions to complete the installation.