Texas Instruments TLV3811EVM, User Manual

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User’s Guide
TLV3811EVM User’s Guide
ABSTRACT
The TLV3811EVM is an evaluation board designed to evaluate the high-speed TLV3811 comparator. The
TLV3811EVM has layout options intended to make it simple to evaluate timing performance with different
measurement tools. The output of the TLV3811 is designed for low-voltage differential signals (LVDS) that
provide high-speed signals to interconnect devices such as FPGAs with minimal power dissipation.
Table of Contents
1 Introduction ............................................................................................................................................................................. 2
1.1 Features............................................................................................................................................................................. 2
1.2 EVM Specifications............................................................................................................................................................ 3
2 How to Make a TPHL Propagation Delay Measurement With Split Supplies .................................................................... 4
3 Board Setup ............................................................................................................................................................................. 6
3.1 Supply Voltage................................................................................................................................................................... 6
3.2 Inputs................................................................................................................................................................................. 7
3.3 Outputs............................................................................................................................................................................... 8
4 Layout Guidelines ................................................................................................................................................................... 9
5 Schematic .............................................................................................................................................................................. 11
6 Bill of Materials ..................................................................................................................................................................... 12
List of Figures
Figure 1-1. TLV3811EVM Board Top View.................................................................................................................................. 2
Figure 1-2. TLV3811 Block Diagram............................................................................................................................................ 2
Figure 1-3. TLV3811EVM Pin Assignments................................................................................................................................. 3
Figure 2-1. TLV3811 EVM Propagation Delay Setup................................................................................................................... 4
Figure 2-2. Quick Start Example.................................................................................................................................................. 5
Figure 3-1. TLV3811EVM Supply Voltage Connection................................................................................................................ 6
Figure 3-2. Input Side Schematic Without Optional Resistors R2 and R3................................................................................... 7
Figure 3-3. Configuration for LVDS Inputs Using the Unused Pads of R2 and R3...................................................................... 7
Figure 3-4. Output Side Schematic.............................................................................................................................................. 8
Figure 4-1. Layers........................................................................................................................................................................ 9
Figure 4-2. TLV3811 EVM Block Diagram................................................................................................................................. 10
Figure 5-1. TLV3811 EVM Schematic........................................................................................................................................ 11
List of Tables
Table 6-1. BOM.......................................................................................................................................................................... 12
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