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Summary of Contents for Texas Instruments SN65LVCP22
- Page 1 SN65LVCP22/23 EVM User’s Guide June 2003 HPL Interface SLLU060...
- Page 2 TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Following are URLs where you can obtain information on other Texas Instruments products & application solutions:...
- Page 3 EVM IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety measures typically found in the end product incorporating the goods.
- Page 4 EVM schematic located in the EVM User’s Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch. Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright 2003, Texas Instruments Incorporated...
- Page 5 Trademarks Preface Read This First About This Manual This user’s guide describes the SN65LVCP22/23 evaluation module (EVM). This guide contains the EVM schematic, bill of materials, assembly drawing, and board layouts. How to Use This Manual This document contains the following chapters: Chapter 1–...
- Page 6 Trademarks Electrostatic Sensitive Devices This EVM contains components that can potentially be damaged by electrostatic discharge. Always transport and store the EVM in its supplied ESD bag when not in use. Handle using an antistatic wristband. Operate on an antistatic work surface. For more information on proper handling, refer to SSYA008.
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Page 7: Table Of Contents
......... . Bill of Materials for SN65LVCP22/23 EVM... - Page 8 ......2–3 Typical Test Results of the SN65LVCP23 with the SN65LVCP22/23EVM ... . .
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Page 9: Introduction
Chapter 1 Introduction The SN65LVCP22/23 EVM highlights the high-speed performance and functionality of the SN65LVCP22 and SN65LVCP23 2x2 crosspoint switches. Topic Page Overview ........... . . -
Page 10: Overview
IN1– 1:2 Splitter 2:1 MUX Figure 1–2 is a picture of the SN65LVCP22/23 EVM. The EVM part number is SN65LVCP22/23EVM. The EVM comes with the SN65LVCP22D and SN65LVCP23D (SOIC both) installed. A copy of the datasheet is shipped with the EVM. The latest version of the datasheet is available from www.ti.com. -
Page 11: Signal Paths
(JMP3, JMP4 for DUT1and JMP7, JMP8 for DUT2) for enabling and disabling the outputs, and three banana jacks (J17, J18, J19) for power and ground connections. See Figure 1–3. Figure 1–3. SN65LVCP22/23 EVM C6 C7 C8 C9 C10 C1 C2 C3 C4 C5... -
Page 13: Setup And Equipment Required
Chapter 2 Setup and Equipment Required Topic Page Overview ........... . . Applying an Input . -
Page 14: Overview
LVDS drivers affects how they are observed and much of the test setup that follows.. The EVM is designed to support the SN65LVCP22 LVDS output device as well as the SN65LVCP23 LVPECL output device. By using the three power jacks (J17, J18, J19), as well as installing termination resistors (R3–R8 and... -
Page 15: Applying An Input
LVDS termination. The simple 100-Ω terminations do not provide the necessary termination for LVPECL or CML output structures. In order to interface the SN65LVCP22/23 EVM with CML or LVPECL drivers, external terminations are required. Figure 2–2 shows an example termination for LVPECL and CML output structures. -
Page 16: Observing An Output
SMA connectors J5–J8 (DUT1) and J13–J16 (DUT2). With power applied as shown in Figure 2–1, the common-mode voltage seen by the SN65LVCP22 is approximately equal to the reference voltage being used inside the device, preventing significant common-mode current to flow. -
Page 17: Typical Test Results
Gbps, and a 650 MHz clock to J3 and J4. The input levels for both clock and data were a differential voltage of 400 mV, with a common-mode voltage of 0 V (referenced to the ground of the pattern generator). Figure 2–3. Typical Test Results of the SN65LVCP23 with the SN65LVCP22/23EVM 1.3 Gbps OUTPUT 1 2 23 –1 PRBS... -
Page 18: Evm Construction
Chapter 3 EVM Construction Topic Page Schematics ........... Board Layout Patterns . -
Page 19: Schematics
Schematics 3.1 Schematics Figure 3–1. SN65LVCP22D Schematic... -
Page 20: Sn65Lvcp23D Schematic
Schematics Figure 3–2. SN65LVCP23D Schematic EVM Construction... -
Page 21: Board Layout Patterns
Board Layout Patterns 3.2 Board Layout Patterns Figure 3–3. SN65LVCP22/23 Silk Screen Figure 3–4. Layer 1 – Signal Plane... -
Page 22: Layer 2 - Gnd Plane
Board Layout Patterns Figure 3–5. Layer 2 – GND Plane Figure 3–6. Layer 3 – Split Plane (V CC01 EVM Construction... -
Page 23: Layer 4 - Gnd Plane
Board Layout Patterns Figure 3–7. Layer 4 – GND Plane... -
Page 24: Pcb Fabrication And Bill Of Materials
Chapter 4 PCB Fabrication and Bill of Materials Topic Page PCB Fabrication Notes and Stackup ......Bill of Materials . -
Page 25: Bill Of Materials For Sn65Lvcp22/23 Evm
9) 0.0125 inch signal lines on layer 1 to be impednace controlled 100 W to each other ±10% 10)Dielectric constants are core 3.9 11) Fill vias that are in a pad are prepreg 3.9 4.2 Bill of Materials for SN65LVCP22/23 EVM Comment Quantity Components 10 µF, 35V, 10%...
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