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FEATURES
Fully assembled evaluation board with test pins and
standoffs
User-selectable jumpers for easy configuration changes
Optimized layout to reduce ground bounce and EMI
Multiple ground test-pins for easy grounding
Test pins labeled and segmented for each functional block
PACKAGE CONTENTS
ADD8754 evaluation board
5 ADD8754 devices
ADD8754 data sheet
ADD8754-EVAL data sheet
CD including
Electronic version of ADD8754 data sheet
Electronic version of ADD8754-EVAL data sheet
Excel®-based spreadsheet for power dissipation
calculations
Excel-based spreadsheet for loop compensation
components selection
Rev. A
Evaluation boards are only intended for device evaluation and not for production purposes.
Evaluation boards as supplied "as is" and without warranties of any kind, express, implied, or
statutory including, but not limited to, any implied warranty of merchantability or fitness for a
particular purpose. No license is granted by implication or otherwise under any patents or other
intellectual property by application or use of evaluation boards. Information furnished by Analog
Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may result
from its use. Analog Devices reserves the right to change devices or specifications at any time
without notice. Trademarks and registered trademarks are the property of their respective owners.
Evaluation boards are not authorized to be used in life support devices or systems.
EVALUATION BOARD DIGITAL PICTURE
Figure 1.
Evaluation Kit for LCD Power,
VCOM, and Gate Modulation
PRODUCT DESCRIPTION
The ADD8754-EVAL simplifies the evaluation of the
device. It includes a fully assembled evaluation board and detailed
usage instructions.
This data sheet describes the ADD8754 evaluation board only.
For specific information regarding the ADD8754 device, LCD
power, VCOM, and gate modulation, see the ADD8754 data sheet.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
©2006–2007 Analog Devices, Inc. All rights reserved.
ADD8754-EVAL
ADD8754
www.analog.com
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Table of Contents
Related Manuals for Analog Devices ADD8754-EVAL
Summary of Contents for Analog Devices ADD8754-EVAL
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Page 1: Features
Devices for its use, nor for any infringements of patents or other rights of third parties that may result One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. from its use. Analog Devices reserves the right to change devices or specifications at any time Tel: 781.329.4700 www.analog.com... -
Page 2: Table Of Contents
ADD8754-EVAL TABLE OF CONTENTS Features ....................1 LDO....................5 Package Contents................1 VCOM Amplifier ................5 Product Description................. 1 Gate Pulse Modulator ..............5 Evaluation Board Digital Picture............ 1 AD5259 Digital Potentiometer (Optional) ........6 Revision History ................2 Evaluation Board Layout ..............7 Evaluation Board Hardware ............3 Functional Blocks................7... -
Page 3: Evaluation Board Hardware
FACTORY SETTINGS Figure 3. JP3 Open All Pins The ADD8754-EVAL arrives fully assembled and ready to use. The factory voltage settings are detailed in Table 1. See the Quick Start Instructions section for power-up instructions. -
Page 4: Basic Circuit
ADD8754-EVAL BASIC CIRCUIT BAV99 BAV99 1kΩ VCPH 1µF 1µF 1µF BZX84C28 0.1µF 0.1µF BAV99 300Ω 0.1µF VCPL 1µF OPEN 10Ω BZX84C5V1 1N5818 BOOST_OUT COUT1, COUT2, COUT3 10µF, 10µF, 0.1µF 10µH 71.5kΩ 33kΩ 100kΩ FREQ FUSE VIN_1 10µF VIN_2 PGND 100kΩ... -
Page 5: Functional Block Overview
ADD8754-EVAL FUNCTIONAL BLOCK OVERVIEW This section provides an overview of the important features of each functional block to assist in evaluating the ADD8754 The LDO generates a selectable logic voltage output for the device. For detailed information about the ADD8754, see the digital logic needs of a TFT-LCD display. -
Page 6: Changes To Table 3
RE adjusts the negative ramp rate of the VGH_M To use the programmable potentiometer waveform. See the ADD8754 data sheet for details. Connect the ADD8754-EVAL to the parallel port of a PC VFLK Input using a parallel port cable. -
Page 7: Evaluation Board Layout
ADD8754-EVAL EVALUATION BOARD LAYOUT FUNCTIONAL BLOCKS BLOCK 1 BLOCK 8 BLOCK 2 BLOCK 7 BLOCK 10 BLOCK 9 BLOCK 3 BLOCK 6 BLOCK 5 BLOCK 4 Figure 6. Evaluation Board Layout Table 4. Evaluation Board Functional Block Descriptions Block Description Positive Charge Pump. -
Page 8: Layers
ADD8754-EVAL LAYERS Figure 7. Evaluation Board Layout—Top Layer Rev. A | Page 8 of 12... - Page 9 ADD8754-EVAL Figure 8. Evaluation Board Layout—Bottom Layer Table 5. Evaluation Board Layer Descriptions Layer Description Blue (Top) Top-of-board metal traces and ground plane. See Figure 7. Red (Bottom) Bottom-of-board metal traces and ground plane. Note that the top-view is shown in Figure 8. Silkscreen text is shown for orientation purposes only;...
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Page 10: Schematic
ADD8754-EVAL SCHEMATIC Figure 9. Evaluation Board Rev. A | Page 10 of 12... -
Page 11: Changes To Component Listing Section
ADD8754-EVAL ORDERING INFORMATION COMPONENT LISTING Table 6. Qty. Reference Designator Description Value C1, C2 Positive charge pump flying capacitors 0.1 μF C3, C4 Positive charge pump charging capacitors 1 μF Negative charge pump flying capacitor 0.1 μF Negative charge pump charging capacitor 1 μF... -
Page 12: Ordering Guide
These component values must be changed when using the AD5259 digital potentiometer. ESD CAUTION ORDERING GUIDE Model Description ADD8754-EVAL Evaluation Kit ©2006–2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB06040-0-3/07(A) Rev. A | Page 12 of 12...
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