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2-2

Figure 2–1. EVM Simplified I/O Block Diagram

LVTTL Input

Connector

A1A

LVDS387EVM

EN_A

LVDS Output

Connector

A1Z

A1Y

A2A

A2Z

A2Y

A3A

A3Z

A3Y

A4A

A4Z

A4Y

LVDS Driver

(1 of 4)

LVTTL Output

Connector

D4Y

LVDS386EVM

LVDS Input

Connector

D4B

D3Y

D2Y

D1Y

LVDS Receiver

(1 of 4)

GND

D4A

EN_A

D3B

D3A

D2B

D2A

D1B

D1A

100

The SN65LVDS387EVM and the SN65LVDS386EVM are discussed in sec-
tions 2.1 and 2.2. Use of the schematics in Appendix A will facilitate under-
standing the detailed discussion that follows.

Содержание SN65LVDS386EVM

Страница 1: ...July 2000 AAP Data Transmission User s Guide SLLU013...

Страница 2: ...LVDS driver can be connected to the LVDS inputs of the 16 channel LVDS receiver on the SN65LVDS386EVM This allows users to simulate performance of an LVDS system Recommended test equipment and evaluat...

Страница 3: ...3 1 Pattern Generator 3 2 3 2 Oscilloscope and Scope Probes 3 2 3 3 Power Supply 3 2 3 4 Cables 3 2 4 Operation 4 1 4 1 SN65LVDS387 Operation 4 2 4 2 SN65LVDS386 Operation 4 3 4 3 System Evaluation Us...

Страница 4: ...Running Title Attribute Reference vi Figures 2 1 EVM Simplified I O Block Diagram 2 2 2 2 SN65LVDS387EVM 2 4 2 3 SN65LVDS386EVM 2 6 4 1 Examples of Multidrop Interconnections 4 4...

Страница 5: ...ges of single ended techniques when signal transition times approach 10 nS This represents signaling rates ap proaching 30 Megabits per second Mbps Presently LVDS devices operate with signaling rates...

Страница 6: ...connectors are on the top connector side of the board All other passive components are installed on the underside component side of the PWB A simplified input output I O block diagram of the EVM is sh...

Страница 7: ...LVDS Driver 1 of 4 LVTTL Output Connector D4Y LVDS386EVM LVDS Input Connector D4B D3Y D2Y D1Y LVDS Receiver 1 of 4 VCC GND VCC GND D4A EN_A D3B D3A D2B D2A D1B D1A 51 100 The SN65LVDS387EVM and the SN...

Страница 8: ...are left open on the SN65LVDS387EVM These are used in the LVDS output circuit and since LVDS lines are normally terminated at the input to the receiver these 100 resistors are not installed on the EVM...

Страница 9: ...SN65LVDS387 16 Channel LVDS Line Driver 2 4 Figure 2 2 SN65LVDS387EVM LVTTL Input Pins Connector Top Side Component Bottom Side GND Enable Disable Jumpers LVDS Output Pins VCC...

Страница 10: ...resistors R 33 through R48 allow the user to install a divider net work if desired This might be necessary if the outputs are to be measured with an instrument having a 50 input impedance By installi...

Страница 11: ...SN65LVDS386 16 Channel LVDS Line Receiver 2 6 Figure 2 3 SN65LVDS386EVM Connector Top Side Component Bottom Side LVTTL Output Pins GND LVDS Input Pins VCC Enable Disable Jumpers...

Страница 12: ...uipment Required This chapter provides guidance for selecting the test equipment required to use the EVM Topic Page 3 1 Pattern Generator 3 2 3 2 Oscilloscope and Scope Probes 3 2 3 3 Power Supply 3 2...

Страница 13: ...probes and P6247 differential probes or equiv alent is suggested 3 3 Power Supply A single output dc power supply is required to provide Vcc and Gnd to the EVM This supply is connected to J1 Vcc and...

Страница 14: ...s are located away from the device and all external resistors are located on the opposite side of the EVM This also allows the use of a forced air temperature controller such as a Thermostream or a Te...

Страница 15: ...ection to external equipment Note that there is no 50 termination onboard for the enable disable pins Basic tests of the SN65LVDS387 driver will consist of applying an LVTTL sig nal pattern to the P1...

Страница 16: ...have no com ponents installed 4 3 System Evaluation Using Both the SN65LVDS387EVM and SN65LVDS386EVM These EVMs has been designed to allow performance evaluation of both de vices when connected togeth...

Страница 17: ...th the SN65LVDS387EVM and 4 4 Figure 4 1 Examples of Multidrop Interconnections Termination Termination Termination Termination LVDS387 LVDS386 Four 1 4 Multidrops LVDS387 LVDS386 Termination Single 1...

Страница 18: ...in web site at http www ti com Data sheets J Full data sheet for the LVDS387 in Acrobat PDF slls362b pdf 217 KB or in zipped PostScript slls362b psz 214 KB J Full data sheet for the LVDS386 in Acrobat...

Страница 19: ...st and Schematics This appendix presents the parts list and schematics for as shipped configura tions of LVDS387 and LVDS386 EVMs Note that equivalent parts may be used Topic Page A 1 Parts List for E...

Страница 20: ...VX 06033G102JATMA C8 C11 C14 Capacitor SMT Y5V 25V 5 0 001 F 0603 PCKG 10 2 2 ITT Pomona 3267 PK10 J1 J2 Connector banana jack One pin square pad 11 1 1 AMP 90F4440 P3 Connector header 2 X 16P Header...

Страница 21: ...t and Schematics A 2 Schematic Diagrams 620201 and 6420202 This section contains the following evaluation board schematic diagrams 6420201 Schematic Bench Evaluation Board SN65LVDS387DGG EVM 6420202 S...

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Страница 24: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...

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