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1

SLVUB53 – July 2017

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Copyright © 2017, Texas Instruments Incorporated

LSF-EVM Hardware User's Guide

User's Guide

SLVUB53 – July 2017

LSF-EVM Hardware User's Guide

Contents

1

Introduction

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2

2

Hardware Description

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2

2.1

Board View and Supported Devices

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2

2.2

Board Overview

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3

2.3

Board Component Descriptions

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4

3

Setup

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6

3.1

LSF0108 Setup (Out of Box Setup)

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6

3.2

LSF0204 Setup

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7

3.3

Operating Modes

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7

4

Additional Information

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9

4.1

Hardware Change Log

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9

4.2

Schematic

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10

4.3

Bill of Materials

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11

List of Figures

1

LSF-EVM With LSF0108PW Populated

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2

2

LSF-EVM With LSF0101 Populated

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3

3

LSF-EVM With LSF0102 Populated

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3

4

LSF-EVM With LSF0204 Populated

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3

5

LSF-EVM Board Overview

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3

6

Jumper and Supply Connections for Multi-Voltage Level Translation (Zoom for High Resolution)

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4

7

LSF Pass Transistor LOW-State Operation

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5

8

Typical LSF-EVM Setup

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6

9

LSF0204 Board Setup

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7

10

LSF0102 Single-Supply Operation Setup

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8

11

LSF-EVM Without Single-Supply Resistors

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8

12

LSF-EVM With Single-Supply Resistors Populated

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8

13

LSF-EVM Schematic (Zoom for Higher Resolution)

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10

14

Bill of Materials

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11

List of Tables

1

Compatible Parts and Packages for LSF-EVM

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2

2

Allowable Operating Voltages

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4

3

Pullup Resistor Values

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5

4

Description of Hardware Changes

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9

Trademarks

All trademarks are the property of their respective owners.

Summary of Contents for LSF-EVM

Page 1: ...ed 2 2 LSF EVM With LSF0101 Populated 3 3 LSF EVM With LSF0102 Populated 3 4 LSF EVM With LSF0204 Populated 3 5 LSF EVM Board Overview 3 6 Jumper and Supply Connections for Multi Voltage Level Translation Zoom for High Resolution 4 7 LSF Pass Transistor LOW State Operation 5 8 Typical LSF EVM Setup 6 9 LSF0204 Board Setup 7 10 LSF0102 Single Supply Operation Setup 8 11 LSF EVM Without Single Suppl...

Page 2: ... greater than 100 MHz Additionally the design of the board enables simple evaluation as multiple connection interfaces are available and pullups are populated which is easily connected or disconnected by using shunt jumpers 2 Hardware Description 2 1 Board View and Supported Devices The LSF EVM comes populated with the LSF0108 device in the PW TSSOP package however this EVM can evaluate additional...

Page 3: ...LSF0204 device in Figure 4 carefully as pin 1 of the LSF0204 is located on the LSF0108 pin 2 landing pad 2 2 Board Overview Figure 5 shows an overview of the LSF EVM The main features such as connectors pullups and headers are highlighted A more detailed description of the board is given in Section 2 3 and a schematic is provided in the Section 4 2 section Figure 5 LSF EVM Board Overview NOTE Two ...

Page 4: ...ons provided for convenience Be sure that the two supplies share the same ground Refer to Table 2 for allowable supply voltages Table 2 Allowable Operating Voltages PARAMETER MIN MAX UNIT V_PU Pullup supply voltage Vref_A 0 85 5 5 V Vref_A A side reference voltage 0 95 5 5 V VI EN Enable pin input voltage Vref_A 0 85 5 5 V 2 3 2 J3 J4 A Side and B Side Pullup Headers These jumpers are provided to ...

Page 5: ...llup Resistor Values 1 2 VPU 15 mA 10 mA 3 mA NOMINAL Ω 10 3 Ω NOMINAL Ω 10 3 Ω NOMINAL Ω 10 3 Ω 5 V 310 Populated Resistance 341 465 512 1550 1705 3 3 V 197 217 295 325 983 1082 2 5 V 143 158 215 237 717 788 1 8 V 97 106 145 160 483 532 1 5 V 77 85 115 127 383 422 1 2 V 57 63 85 94 283 312 2 3 3 J5 J8 Channel 1 2 Edge Mounted SMB Connectors Connectors J5 and J6 are provided for channel 1 of the d...

Page 6: ..._PU is connected to J2 A high speed signal is connected into the SMA Connector on the A side with a 50 Ω termination impedance to reduce line reflections An SMA cable is connected from the B side to a high impedance oscilloscope input to monitor the output waveform The yellow cable on the left is connected to A3 on the A side to provide an input signal The yellow cable on the right is connected to...

Page 7: ...This shunt jumper is populated to pull up the B1 line to up translate the signal from the A side SH3 This shunt jumper is populated to short bypass the R7 200 kΩ resistor This resistor is not required for operation with the LSF0204 devices as the 200 kΩ resistor is integrated SH4 This shunt jumper is populated to connect the EN pin of the LSF0204 to VREF_A to enable the device For the LSF0204D dev...

Page 8: ...OTE One limitation of this setup is that it does not allow for a pullup to be placed between the A side output and the VREF_A pin A separate supply is required for up translation on the A side Figure 10 LSF0102 Single Supply Operation Setup To enable single supply operation resistors R1 and R2 must be populated see Figure 12 Use Equation 2 to determine the value of R1 to set the threshold of the d...

Page 9: ... Submit Documentation Feedback Copyright 2017 Texas Instruments Incorporated LSF EVM Hardware User s Guide 4 Additional Information 4 1 Hardware Change Log Table 4 Description of Hardware Changes PCB Revision Description of Changes Rev 1 0 Initial Release ...

Page 10: ...edback Copyright 2017 Texas Instruments Incorporated LSF EVM Hardware User s Guide 4 2 Schematic Figure 13 LSF EVM Schematic Zoom for Higher Resolution NOTE DNP is an abbreviation for do not populate Components highlighted as DNP in the schematic are not populated out of the box ...

Page 11: ...Open Drain and Push Pull Application PW0020A TSSOP 20 PW0020A LSF0108PWR Texas Instruments Texas Instruments FID1 FID2 FID3 0 Fiducial mark There is nothing to buy or mount Fiducial N A N A H1 H2 H3 H4 0 Machine Screw Round 4 40 x 1 4 Nylon Philips panhead Screw NY PMS 440 0025 PH B F Fastener Supply H5 H6 H7 H8 0 Standoff Hex 0 5 L 4 40 Nylon Standoff 1902C Keystone J7 J8 0 Connector SMB Jack End...

Page 12: ...y set forth above or credit User s account for such EVM TI s liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repair such EVM or provide replacements Repaired EVMs shall be warr...

Page 13: ...the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain greater than the maximum gain indicated for that type are strictly prohibited for use with this device Concernant les EVMs avec antennes détachables Conformément à la réglementation d Industrie Canada le présent émetteur radio peut fo...

Page 14: ...ed loads Any loads applied outside of the specified output range may also result in unintended and or inaccurate operation and or possible permanent damage to the EVM and or interface electronics Please consult the EVM user guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even ...

Page 15: ...COST OF REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE LOSS OF DATA OR BUSINESS INTERRUPTION NO CLAIM SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN TWELVE 12 MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS OCCURRED 8 2 Specif...

Page 16: ... TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD PARTY IS GRANTED HEREIN including but not limited to any patent right copyright mask work right or other intellectual property right relating to any combination machine or process in which TI product...

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