CMOS, 330 MHz Triple 10-Bit High Speed Video DAC ADV7123 FEATURES FUNCTIONAL BLOCK DIAGRAM V AA 330 MSPS throughput rate Triple 10-bit digital-to-analog converters (DACs) BLANK BLANK AND SFDR SYNC LOGIC SYNC 70 dB at f = 50 MHz f = 1 MHz CLK OUT 53 dB at f = 140 MHz f = 40 MHz CLK OUT IOR DATA R9 TO R0 10 10 DAC REGISTER RS-343A-/RS-170-compatible output IOR Complementary outputs IOG DATA G9 TO G0 10 10 DAC DAC output current range: 2.0 mA to 26.5 mA REGISTER IOG TTL-compatible inputs IOB DATA Internal reference (1.235 V) B9 TO B0 10 10 DAC REGISTER IOB Single-supply 5 V/3.3 V operation 48-lead LQFP package POWER-DOWN VOLTAGE PSAVE MODE REFERENCE V REF Low power dissipation (30 mW minimum 3 V) CIRCUIT Low power standby mode (6 mW typical 3 V) CLOCK ADV7123 Industrial temperature range (40C to +85C) GND R COMP SET Pb-free (lead-free) package Figure 1. APPLICATIONS Digital video systems (1600 1200 100 Hz) High resolution color graphics Digital radio modulation Image processing Instrumentation Video signal reconstruction GENERAL DESCRIPTION The ADV7123 (ADV) is a triple high speed, digital-to-analog The ADV7123 is fabricated in a 5 V CMOS process. Its converter on a single monolithic chip. It consists of three high monolithic CMOS construction ensures greater functionality speed, 10-bit, video DACs with complementary outputs, a with lower power dissipation. The ADV7123 is available in a standard TTL input interface, and a high impedance, analog 48-lead LQFP package. output current source. PRODUCT HIGHLIGHTS The ADV7123 has three separate 10-bit-wide input ports. A 1. 330 MSPS throughput. single 5 V/3.3 V power supply and clock are all that are required 2. Guaranteed monotonic to 10 bits. to make the part functional. The ADV7123 has additional video 3. Compatible with a wide variety of high resolution color control signals, composite SYNC and BLANK. graphics systems, including RS-343A and RS-170. The ADV7123 also has a power save mode. ADV is a registered trademark of Analog Devices, Inc. Rev. D 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 00215-001ADV7123 TABLE OF CONTENTS Features .............................................................................................. 1 3 V Typical Performance Characteristics ................................ 14 Applications ....................................................................................... 1 Terminology .................................................................................... 16 Functional Block Diagram .............................................................. 1 Circuit Description and Operation .............................................. 17 General Description ......................................................................... 1 Digital Inputs .............................................................................. 17 Product Highlights ........................................................................... 1 Clock Input .................................................................................. 17 Revision History ............................................................................... 2 Video Synchronization and Control ........................................ 18 Specif icat ions ..................................................................................... 3 Reference Input ........................................................................... 18 5 V Specifications ......................................................................... 3 DACs ............................................................................................ 18 3.3 V Specifications ...................................................................... 4 Analog Outputs .......................................................................... 18 5 V Dynamic Specifications ........................................................ 5 Gray Scale Operation ................................................................. 19 3.3 V Dynamic Specifications ..................................................... 6 Video Output Buffers ................................................................. 19 5 V Timing Specifications ........................................................... 7 PCB Layout Considerations ...................................................... 19 3.3 V Timing Specifications ........................................................ 8 Digital Signal Interconnect ....................................................... 19 Absolute Maximum Ratings ............................................................ 9 Analog Signal Interconnect....................................................... 20 ESD Caution .................................................................................. 9 Outline Dimensions ....................................................................... 21 Pin Configuration and Function Descriptions ........................... 10 Ordering Guide .......................................................................... 21 Typical Performance Characteristics ........................................... 12 5 V Typical Performance Characteristics ................................ 12 REVISION HISTORY 7/10Rev. C to Rev. D 10/02Rev. A to Rev. B Changes to Figure 2 .......................................................................... 9 Change in Title ................................................................................... 1 Changes to Figure 22 and Figure 23 ............................................. 17 Change to Feature .............................................................................. 1 Changes to Table 9 .......................................................................... 18 Change to Product Highlights ......................................................... 1 3/09Rev. B to Rev. C Change Specifications ....................................................................... 3 Updated Format .................................................................. Universal Change to Pin Function Descriptions ......................................... 10 Changes to Features Section............................................................ 1 Change to Reference Input section .............................................. 18 Changes to Table 5 ............................................................................ 7 Change to Figure 28 ....................................................................... 22 Changes to Table 6 ............................................................................ 8 Updated Outline Dimensions ....................................................... 23 Changes to Table 8 .......................................................................... 10 Change to Ordering Guide ............................................................ 23 Changed fCLOCK to fCLK ..................................................................... 12 Changes to Figure 6, Figure 7, and Figure 8................................ 12 Changes to Figure 13 and Figure 17 ............................................. 14 Deleted Ground Planes Section, Power Planes Section, and Supply Decoupling Section ........................................................... 15 Changes to Figure 23 ...................................................................... 17 Changes to Table 9, Analog Outputs Section, Figure 24, and Figure 25 .......................................................................................... 18 Changes to Video Output Buffers Section and PCB Layout Considerations Section .................................................................. 19 Changes to Analog Signal Interconnect Section and Figure 28 .......................................................................................... 20 Updated Outline Dimensions ....................................................... 21 Changes to Ordering Guide .......................................................... 21 Rev. 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