TRS208CDBR datasheet by Texas Instruments

TRS208CDBR Frequently Asked Questions (FAQs)

• What is the recommended layout and placement for the TRS208CDBR to minimize EMI and noise?
  Texas Instruments recommends a compact layout with the TRS208CDBR placed close to the power source, using a solid ground plane, and minimizing trace lengths to reduce EMI and noise. Additionally, it's recommended to use a 10nF capacitor between the VCC and GND pins to filter out high-frequency noise.
• How do I ensure the TRS208CDBR is properly powered and what are the power sequencing requirements?
  The TRS208CDBR requires a single 3.3V or 5V power supply, and it's recommended to power it up before the input signals. The power sequencing requirements are not explicitly stated in the datasheet, but it's generally recommended to power up the device before applying input signals to prevent latch-up or damage.
• What is the maximum data rate and frequency that the TRS208CDBR can handle?
  The TRS208CDBR can handle data rates up to 100Mbps and frequencies up to 50MHz. However, the actual data rate and frequency handling capability may vary depending on the specific application, PCB layout, and signal quality.
• How do I handle the enable pin (EN) and what is its purpose?
  The enable pin (EN) is used to enable or disable the TRS208CDBR. When EN is high, the device is enabled, and when EN is low, the device is disabled. It's recommended to tie the EN pin to VCC or use a pull-up resistor to ensure the device is enabled during normal operation.
• What is the recommended termination scheme for the TRS208CDBR, and how do I handle impedance matching?
  The TRS208CDBR requires a termination scheme to match the impedance of the transmission line. A common termination scheme is to use a 50Ω resistor in series with the output pin and a 50Ω resistor to ground. The impedance matching can be achieved by using a resistive divider or a transmission line with a characteristic impedance of 50Ω.