Texas Instruments TLV3604EVM User Manual
www.ti.com
Table of Contents
User’s Guide
TLV3604EVM
Jonathan Nguyen
ABSTRACT
The TLV3604EVM is an evaluation board designed to evaluate the high speed TLV3604 comparator. The
TLV3604EVM has layout options intended to make it simple to evaluate timing performance with different
measurement tools. The output of the TLV3604 is designed for low voltage differential signals (LVDS), which
provide high speed signals to interconnect devices such as FPGAs with minimal power dissipation.
Table of Contents
Trademarks.................................................................................................................................................................................1
1 Introduction.............................................................................................................................................................................2
2 Features...................................................................................................................................................................................2
3 EVM Specifications.................................................................................................................................................................3
4 Recommended Equipment.....................................................................................................................................................4
5 Quick Start Procedure............................................................................................................................................................5
6 Board Setup.............................................................................................................................................................................8
6.1 Supply Voltage................................................................................................................................................................... 8
6.2 Inputs................................................................................................................................................................................. 8
6.3 Outputs...............................................................................................................................................................................8
7 Layout Guidelines.................................................................................................................................................................10
8 Schematic..............................................................................................................................................................................12
9 Bill of Materials..................................................................................................................................................................... 13
List of Figures
Figure 1-1. TLV3604EVM Board Top View.................................................................................................................................. 2
Figure 2-1. Block Diagram........................................................................................................................................................... 2
Figure 3-1. TLV3604EVM Pin Assignments.................................................................................................................................3
Figure 5-1. TLV3604 EVM Quick Start Setup..............................................................................................................................6
Figure 5-2. Quick Start Example..................................................................................................................................................7
Figure 6-1. TLV3604EVM Supply Voltage Connection................................................................................................................ 8
Figure 6-2. Input Side Schematic................................................................................................................................................ 8
Figure 6-3. Output Side Schematic..............................................................................................................................................9
Figure 6-4. Differential Output of TLV3604EVM.......................................................................................................................... 9
Figure 7-1. Layers......................................................................................................................................................................10
Figure 7-2. Block Diagram......................................................................................................................................................... 11
Figure 8-1. TLV3604 EVM Schematic........................................................................................................................................12
List of Tables
Table 9-1. BOM .........................................................................................................................................................................13
Trademarks
All trademarks are the property of their respective owners.
SNOU170A – AUGUST 2020 – REVISED DECEMBER 2020
Submit Document Feedback
Copyright © 2020 Texas Instruments Incorporated
TLV3604EVM 1
+
±
VCCI/VCCO
TLV3604EVM
OUT+
IN+
IN-
OUT-
GND
0Ÿ
0Ÿ
0Ÿ 0Ÿ
100Ÿ
100Ÿ
0.1 uF
0.1 uF
Unpopulated
Unpopulated
IN+_SENSE
IN-_SENSE
Introduction
www.ti.com
1 Introduction
The TLV3604EVM is an evaluation board designed to evaluate the high speed TLV3604 comparator. The
TLV3604EVM has layout options intended to make it simple to evaluate timing performance with different
measurement tools. The output of the TLV3604 is designed for low voltage differential signals (LVDS), which
provide high speed signals to interconnect devices such as FPGAs with minimal power dissipation.
Figure 1-1. TLV3604EVM Board Top View
2 Features
• Low Propagation Delay: 800 ps
• Low Overdrive Dispersion: 450 ps
• High Toggle Frequency: 1.5 GHz/3.0 Gbps
• Narrow Pulse Width Detection Capability: 600ps
• LVDS Output
• Low Input Offset Voltage: +/-5mV
• 6-pin SC-70 Package
2 TLV3604EVM SNOU170A – AUGUST 2020 – REVISED DECEMBER 2020
Figure 2-1. Block Diagram
Copyright © 2020 Texas Instruments Incorporated
Submit Document Feedback
+
±
Pin 5 (VCCI/VCCO)
Pin 2 (VEE)
TLV3604EVM
Pin 1 (OUT+)
Pin 3 (IN+)
PIN 4 (IN-)
Pin 6 (OUT-)
GND
0.1 uF
0.1 uF
IN+_SENSE
IN-_SENSE
www.ti.com
3 EVM Specifications
• Supply Range: +2.4 V to +5.5 V (Single Supply Only)
• Input Common Mode Range: (Vee -200 mV) to (VCCI/VCCO + 200 mV)
EVM Specifications
Figure 3-1. TLV3604EVM Pin Assignments
SNOU170A – AUGUST 2020 – REVISED DECEMBER 2020
Submit Document Feedback
TLV3604EVM 3
Copyright © 2020 Texas Instruments Incorporated
Recommended Equipment
4 Recommended Equipment
• Power Supply
• High Speed Functional Generator with dual outputs
– Fast rise/fall time recommended (≤ 500ps)
• High Speed Oscilliscope with 50Ω terminations
– Differential probes with built in 100Ω terminations can be used to terminate the output properly
• SMA Cables/adapters
– Be sure to have matched length cables for IN+, IN-, IN+SENSE, IN-SENSE, OUTP, and OUTN
www.ti.com
4 TLV3604EVM SNOU170A – AUGUST 2020 – REVISED DECEMBER 2020
Copyright © 2020 Texas Instruments Incorporated
Submit Document Feedback
www.ti.com
Quick Start Procedure
5 Quick Start Procedure
Note
DO NOT TURN ON POWER SUPPLY UNTIL ALL CONNECTIONS TO THE DEVICE ARE MADE TO
THE BOARD.
1. Set VCCI/VCCO Power Supply to 3.3V and disable the power supply output
2. Connect positive terminal supply to TP5, and negative terminal to TP4
3. Ensure that cables connecting to IN+, IN-, IN+SENSE, IN-SENSE, OUT+, and OUT- are matched length and
impedance. Perform any deskewing if necessary.
4. Set the function generator to produce a square wave output with 100mVpp at 50MHz, with a DC offset of
1.65V. Disable the signal generator output. Connect the output to IN+.
5. If available, use the second channel on the function generator to create a complementary signal to the one
created in step 3. Disable the signal generator output. Connect the output to IN-.
6. If a second channel or another function generator is not available, use a power supply set to 1.65V. Disable
the output and connect to IN-. An adapter to connect the SMA connector on the board may be needed.
7. Connect OUTP and OUTN to a 50Ω terminated scope. Alternatively, use a differential probe with a 100Ω
termination and connect to the oscilloscope.
8. Connect IN+SENSE and IN-SENSE to a 50Ω terminated scope channel.
9. Enable the power supply and the signal generator.
10.Verify the supply current is < 17.5mA
11. Monitor and verify the inputs from IN+SENSE and IN-SENSE
12.Monitor and verify the outputs for OUT+ and OUT-
SNOU170A – AUGUST 2020 – REVISED DECEMBER 2020
Submit Document Feedback
Copyright © 2020 Texas Instruments Incorporated
TLV3604EVM 5
Quick Start Procedure
www.ti.com
Figure 5-1. TLV3604 EVM Quick Start Setup
6 TLV3604EVM SNOU170A – AUGUST 2020 – REVISED DECEMBER 2020
Copyright © 2020 Texas Instruments Incorporated
Submit Document Feedback
Loading...