Summary of Contents for Texas Instruments TLA2024EVM-PDK
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TLA2024EVM-PDK User's Guide ABSTRACT The TLA2024EVM-PDK is comprised of the TLA2024 Evaluation Module (EVM) and the PAMBoard motherboard. The combination of the EVM and PAMBoard allows users to evaluate the functionality of the Texas Instruments 12-bit TLA2024 device. The TLA2024 is an ultra-small, low-power analog-to-digital converter (ADC).
The TLA2024 EVM requires an external controller to evaluate the TLA2024 device. The PAMBoard is controlled by commands received from the TLA2024EVM-PDK GUI, and returns data to the GUI for display and analysis. If the PAMBoard is not used, the EVM plug-in module format allows for an alternative external host to communicate with the TLA2024 by connection through the pin headers J1 through J4.
C for communication. The digital connections are highlighted in the silkscreen as shown in Figure 3-1. Details regarding the connections are shown in Table 3-1. Figure 3-1. TLA2024EVM-to-PAMBoard Connections Table 3-1. TLA2024EVM-PDK Header Pinout and Description Description Connector Connector Description Description Connector...
Figure 6-5). The EEPROM is preprogrammed with the information required to configure and initialize the TLA2024EVM-PDK GUI software platform. Once the hardware is initialized through the software, the EEPROM is no longer used. The PAMBoard and EEPROM (U3) use 3.3 V for the device interface logic levels. The TLA2024 can operate at either 3.3 V or 5 V as desired by jumper selection JP1.
3.4 kHz. The filter is populated on the TLA2024EVM-PDK for input pair combinations of AIN0 and AIN1 or AIN2 and AIN3. The input combination of AIN1 and AIN2 is possible by adding a 47-nF capacitor at C6 (see location in the schematic).
When the USB cable is plugged into the PC, two LEDs will light on the PAMBoard (see Figure 3-4). The bottom LED (D5) indicates that the 5-V output is active. The top LED (D1) indicates that the TLA2024EVM-PDK is ready to communicate with the GUI. Figure 3-4. LED Indicators D1 and D5...
1. Verify that the micro USB to USB cable from the PAMBoard to a USB port on the computer is connected. 2. On the EVM landing page (TLA2024EVM-PDK), the software is available through a web-based GUI. Connecting to the GUI may require a login to a user account for access (Software GUI).
EVM connected matches with the GUI. An EEPROM on the TLA2024EVM-PDK contains information specific to the EVM connected. A properly connected and identified EVM displays as Device Connected with a green indicator and at the bottom as Hardware Connected in the status ribbon.
The Home page includes links to a variety of information. The links include this user’s guide, the EVM schematic, as well as support resources. Next to the connection status indicator is an information icon. Clicking the icon displays specific information regarding the TLA2024EVM-PDK. Figure 5-13. Connected Hardware Information At the bottom of the GUI is a black ribbon with status information.
The advantage of manually reading the register contents is a reduction in USB communication between the TLA2024EVM-PDK and the GUI. The registers can be read automatically from the TLA2024 at a variety of intervals from once a second to as fast as possible.
Bill of Materials, Printed Circuit Board Layout, and Schematics 6 Bill of Materials, Printed Circuit Board Layout, and Schematics This section contains the TLA2024EVM-PDK bill of materials (BOM), printed-circuit board (PCB) layout, and board schematic. 6.1 Bill of Materials Table 6-1 lists the bill of materials (BOM) for the TLA2024EVM-PDK.
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