Техническая Спецификация для Texas Instruments 3.125 Gbps LVDS Single Channel Buffers with Transmit Pre-emphasis and Receive Equalization family DS25 DS25BR100EVK/NOPB
Модели
DS25BR100EVK/NOPB
DS25BR100EVK User Manual
DS25BR100 (U1) Evaluation
The DS25BR100 is a 3.125 Gbps LVDS buffer featuring two levels of transmit pre-emphasis (Off and
Medium) and two levels of receive equalization (Low and Medium). The following is a recommended test
setup procedure for the device evaluation. Figure 2 depicts a typical setup and instrumentation used for the
device evaluation.
Medium) and two levels of receive equalization (Low and Medium). The following is a recommended test
setup procedure for the device evaluation. Figure 2 depicts a typical setup and instrumentation used for the
device evaluation.
1. Apply the power to the device (3.3V typical) between VDD and VSS banana plug receptacles.
2. Connect desired STRIPLINE(s) to the input and / or output of the device using short 50-ohm
coaxial cables (e.g. PE-SR402-AL from www.pasternack.com).
3. Connect a signal source (i.e. signal generator or an LVDS driver) to the IN1 inputs on the board
and adjust the signal parameters (VOH, VOL, VCM) so that they comply with the device input
recommendations.
recommendations.
4. Select equalization level by setting the EQ pin (CON2) to L (for Low setting) or H (for Medium
setting).
5. If a STRIPLINE is connected to the device outputs, select pre-emphasis level by setting the PE pin
(CON1) to L (for Off setting) or H (for Medium setting)
6. Connect the OUT1 outputs to an oscilloscope and view the output signals with an oscilloscope
with the bandwidth of at least 5 GHz.
Figure 2. DS25BR100 Test Setup Example
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