DS90UB928QEVM User Guide Literature Number: SNLU131 February 2013
Chapter 1 SNLU131 – February 2013 Introduction 1.1 DS90UB928QEVM The Texas Instruments DS90UB928QEVM evaluation module (EVM) helps system designers evaluate the operation and performance of the DS90UB928Q 5MHz-85MHz FPD-Link III Deserializer (DES). The device translates a high-speed serialized FPD-Link III interface transported over a single shielded twisted pair (STP) into four FPD-Link compatible LVDS data output pairs and one LVDS clock.
Typical Application www.ti.com • • 1.5 Internal Pattern Generation Loop-through monitor outputs for observing link integrity Typical Application The following diagram illustrates a typical rear seat entertainment application that utilizes the DS90UB928Q deserializer and a compatible serializer (DS90UB925Q or DS90UB927Q).
Chapter 2 SNLU131 – February 2013 Quick Start Guide 2.1 Board Setup This section describes how to quickly set up the DS90UB928QEVM with an appropriate serializer for evaluation of the chipset in display applications. The default switches and jumper positions have been set at the factory. This setup guide assumes the user has already installed and configured the included ALP software. See Installation for details. 1. Connect 3.3V DC power and ground from a power supply to J8 (VDD33C) and J9 (VSS). If 1.
Board Setup www.ti.com 2-1.
Chapter 3 SNLU131 – February 2013 Evaluation Hardware Overview 3.1 Board Overview The evaluation board includes circuits and interfaces facilitating the different device features of the DS90UB928Q deserializer, including power, video data, FPD-Link III interface, I2S audio, I2C control, connectors, and configuration switches.
Power www.ti.com 3.2 Power Two options are provided for powering the board. +5V DC power may be supplied at the provided barrel connector (J7, center positive), or +3.3V DC through J8 and J9. If 1.8V VDDIO power supply operation is desired, connect +1.8V DC at JP6 and select 1.8V VDDIO power from JP7. 3.3 FPD-Link Video Data Output The FPD-Link video data output accepts a 20-pin IDC cable or similar 0.1” spaced connector. Connect the clock and 4 FPD-Link (LVDS) data pairs here.
Indicators www.ti.com 3.9.1 Mode Selection Inputs (S1) The Mode Input Switches (S1) configure the following DS90UB928Q device pins: • PDB When set LOW, the device enters a low-power mode and all registers are reset. Set HIGH for normal operation. • LFMODE Set HIGH for 5MHz ≤ PCLK < 15MHz. Set LOW for 15MHZ ≤ PCLK ≤ 85MHz • MAPSEL Set LOW to assign LSBs to TxOUT3±, set HIGH to assign MSBs to TxOUT3±. See device datasheet for details. • BISTEN Set HIGH to enable the Built-In Self-test (BIST) Mode.
Input/Output Connectors www.ti.com • • • • • • 1 1 3 • • • above). J5 4-pin I2C Input/Output – Connect SDA, SCL, VSS, and VDD33 to external I2C peripherals or controllers here. The EVM board provides the recommended 4.7kΩ pull-up resistors. J6 USB Connector for USB-to-I2C Controller – Connect USB cable to host PC to use the ALP evaluation software with the EVM board. J7 5V External Power Input (optional) – Connect a +5V center-positive 2.1mm barrel connector here to supply power to the board.
Chapter 4 SNLU131 – February 2013 ALP Software 4.1 Overview The Analog Launch PAD (ALP) software allows evaluation of the I2C control interface of the DS90UB928Q deserializer. The tool provides a graphical interface for reading/writing the device registers. It also features several useful tools for manipulating advanced device-specific features, including internal pattern generation and image enhancement features. System Requirements: Operating System: Windows XP or Vista USB version: 2.0 4.
Usage www.ti.com 4.3 Usage Startup Make sure all the software has been installed and the hardware is powered on and connected to the PC. Execute “Analog LaunchPAD” from the start menu. The default start menu location is “Programs\National Semiconductor Corp\Analog LaunchPAD vx.x.x\Analog LaunchPAD”. The application should come up in the state shown below. If it does not, see 4.4. Under the Devices tab click on “DS90UB928Q” to select the device and open up the device profile and its associated tabs. 4-1.
Usage www.ti.com 4-2. Information Tab 4-3.
Usage www.ti.com 4-4. Register Tab 4-5.
Troubleshooting www.ti.com 4.3.1 Information Tab The information tab gives basic device state information, including local device information, partner device information, and current link status. For both the local device and partner device, the tab gives the following information: • Device Name • Device Revision • I2C address • Pixel clock range (set by LFMODE) • Repeater Status (set by MODE_SEL) • Serial Link Mode (set by MODE_SEL) • Audio mode (set by configuration registers) 4.3.
Troubleshooting www.ti.com 4-7. Windows XP Analog LaunchPAD USB Driver The software should start with only “DS90UB928Q” in the “Devices” pull down menu. If there are more devices then the software is most likely in demo mode. When the ALP is operating in demo mode there is a “(Demo Mode)” indication in the lower left of the application status bar as shown in 4-8.
Troubleshooting www.ti.com 4-8. Analog LaunchPAD in Demo Mode Disable the demo mode by selecting the “Preferences” pull down menu and un-checking “Enable Demo Mode”. 4-9. Analog LaunchPAD Preferences Menu After demo mode is disabled, the ALP software will poll the ALP hardware. The ALP software will update and display only “DS90UB928Q” under the “Devices” pull down menu.
Chapter 5 SNLU131 – February 2013 Additional Information 5.1 Related Documents Additional information may be found in the device product folder at www.ti.
A SNLU131 – February 2013 Board Schematic 18 Additional Information SNLU131 – February 2013 © 2013, Texas Instruments Incorporated
Board Stackup www.ti.com A.1 Board Stackup A-1.
DS90UB928Q Deserializer A.2 www.ti.com DS90UB928Q Deserializer A-2.
USB-to-I2C Controller www.ti.com A.3 USB-to-I2C Controller A-3.
Power A.4 www.ti.com Power A-4.
B SNLU131 – February 2013 Bill of Materials B.1 DS90UB928QEVM BOM B-1. DS90UB928QEVM BOM Item Qty Reference Description Manufacturer Part Number 1 2 CR1,CR2 SUPPRESSOR ESD 24VDC 0603 SMD Littelfuse Inc PGB1010603MR 2 16 C1,C5,C8, C9,C10,C1 2,C13,C14, CAP CER .1UF 50V 10% Murata Electronics North GRM188R71H104KA9 C16,C17,C X7R 0603 America 3D 22,C26,C2 8,C33,C35, C37 3 4 C2,C3,C54, CAP CER .1UF 16V X7R C56 0402 4 2 C6,C7 5 5 6 Murata GCM155R71C104KA5 5D CAP CERAMIC 4.
DS90UB928QEVM BOM www.ti.com B-1. DS90UB928QEVM BOM (continued) Item 24 Qty Reference Description Manufacturer Part Number Johnson Components 142-0701-851 18 4 J1,J2,J11,J 12 End Launch Jack Receptacle - Tab Contact 19 1 J3 CONN HEADER 20 POS STRGHT GOLD. 3M N2520-6002RB 20 1 J4 Automotive HSD Connector - Right Angle Plug Rosenberger D4S20B-40ML5-Y 21 1 J5 CONN HEADER 4POS .100 VERT GOLD Molex/Waldom Electronics Corp 22-11-2042 22 1 J6 CONN RECEPT MINI USB2.
DS90UB928QEVM BOM www.ti.com B-1. DS90UB928QEVM BOM (continued) Item Qty Reference Description Manufacturer Part Number 44 7 R37,R38,R 97,R103,R 104,R105, R106 RES 10.
DS90UB928QEVM BOM www.ti.com B-1. DS90UB928QEVM BOM (continued) Item 26 Qty Reference Description Manufacturer Part Number Panasonic ERJ-3EKF4992V 70 1 R115 RES 49.9K OHM 1/10W 1% 0603 SMD 71 1 R116 RES 40.
C SNLU131 – February 2013 Board Layout C.1 Board Layers The following mechanical drawings (not to scale) illustrate the physical layout and stack-up of the 4-layer DS90UB928QEVM evaluation board: C-1. Top Silkscreen SNLU131 – February 2013 C-2.
Board Layers www.ti.com C-3. Top Copper 28 C-4.
Board Layers www.ti.com C-5. Internal Layer 2: Power SNLU131 – February 2013 C-6.
Board Layers www.ti.com C-7. Bottom Solder Mask 30 Board Layout C-8.
Board Layers www.ti.com C-9.
Revision History www.ti.com Revision History DS90UB928QEVMUser Guide Revision History Revi sion Date 1.0 02/18/2013 Comments Initial Revision. NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions: The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims arising from the handling or use of the goods.
FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
【Important Notice for Users of this Product in Japan】 】 This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product: 1. 2. 3. Use this product in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.
EVALUATION BOARD/KIT/MODULE (EVM) WARNINGS, RESTRICTIONS AND DISCLAIMERS For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished electrical equipment and not intended for consumer use.
IMPORTANT NOTICE FOR TI REFERENCE DESIGNS Texas Instruments Incorporated ("TI") reference designs are solely intended to assist designers (“Buyers”) who are developing systems that incorporate TI semiconductor products (also referred to herein as “components”). Buyer understands and agrees that Buyer remains responsible for using its independent analysis, evaluation and judgment in designing Buyer’s systems and products.
