High Performance 8-Bit Display Interface AD9980 FEATURES FUNCTIONAL BLOCK DIAGRAM 95 MSPS maximum conversion rate 8 AUTO OFFSET AD9980 9% or less p-p PLL clock jitter at 95 MSPS PR/RED 1 8 8 IN 2:1 8-BIT CB/CR/RED CLAMP PGA OUT Automated offset adjustment MUX ADC PR/RED 0 IN 2:1 input mux 8 AUTO OFFSET Power-down via dedicated pin or serial register Y/GREEN 1 8 8 IN 2:1 8-BIT CLAMP PGA Y/GREEN OUT MUX ADC 4:4:4, 4:2:2, and DDR output format modes Y/GREEN 0 IN 8 Variable output drive strength AUTO OFFSET Odd/even field detection PB/BLUE 1 8 8 IN 2:1 8-BIT CLAMP PGA CB/BLUE OUT MUX ADC PB/BLUE 0 External clock input IN Regenerated Hsync output HSYNC1 2:1 Programmable output high impedance control MUX HSYNC2 DTACK Hsyncs per Vsyncs counter SOGOUT SYNC VSYNC1 2:1 Pb-free package PROCESSING MUX O/E FIELD VSYNC2 PLL HSOUT POWER SOGIN1 2:1 APPLICATIONS MANAGEMENT MUX VSOUT/A0 SOGIN2 Advanced TVs EXTCLK/COAST CLAMP Plasma display panels FILT REFHI LCD TV VOLTAGE SDA REFCM REFS SERIAL REGISTER REFLO SCL HDTV RGB graphics processing Figure 1. LCD monitors and projectors Scan converters GENERAL DESCRIPTION The AD9980 is a complete, 8-bit, 95 MSPS, monolithic analog With internal Coast generation, the PLL maintains its output interface optimized for capturing YPbPr video and RGB frequency in the absence of sync input. A 32-step sampling graphics signals. Its 95 MSPS encode rate capability and full- clock phase adjustment is provided. Output data, sync, and power analog bandwidth of 200 MHz supports all HDTV clock phase relationships are maintained. video modes and graphics resolutions up to XGA (1024 768 The auto-offset feature can be enabled to automatically restore at 85 Hz). the signal reference levels and to automatically calibrate out any The AD9980 includes a 95 MHz triple ADC with an internal offset differences between the three channels. The AD9980 also reference, a phase-locked loop (PLL), programmable gain, offers full sync processing for composite sync and sync-on- offset, and clamp controls. The user provides only 3.3 V and green applications. A clamp signal is generated internally or 1.8 V power supplies and an analog input. Three-state CMOS may be provided by the user through the CLAMP input pin. outputs may be powered from 1.8 V to 3.3 V. Fabricated in an advanced CMOS process, the AD9980 is The AD9980s on-chip PLL generates a sample clock from provided in a space-saving, 80-pin, Pb-free, LQFP surface the three-level sync (for YPbPr video) or the horizontal sync mount plastic package. It is specified over the 0C to +70C (for RGB graphics). Sample clock output frequencies range from temperature range. 10 MHz to 95 MHz. PLL clock jitter is 9% or less p-p typical at 95 MSPS. Rev. 0 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. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Specifications subject to change without notice. No license is granted by implication Tel: 781.329.4700 www.analog.com or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Fax: 781.326.8703 2005 Analog Devices, Inc. All rights reserved. OUPUT DATA FORMATTER 04740-013AD9980* PRODUCT PAGE QUICK LINKS Last Content Update: 02/23/2017 COMPARABLE PARTS DESIGN RESOURCES View a parametric search of comparable parts. AD9980 Material Declaration PCN-PDN Information EVALUATION KITS Quality And Reliability AD9980 Evaluation Board Symbols and Footprints DOCUMENTATION DISCUSSIONS Application Notes View all AD9980 EngineerZone Discussions. AN-784: 10-Bit Interface Board for High Performance Display Interface Evaluation Boards SAMPLE AND BUY AN-794: Implementing the Auto-Offset Function on the Visit the product page to see pricing options. AD9980 Data Sheet TECHNICAL SUPPORT AD9980: High Performance 8-Bit Display Interface Data Submit a technical question or find your regional support Sheet number. SOFTWARE AND SYSTEMS REQUIREMENTS DOCUMENT FEEDBACK AD988x Evaluation Tools Software Program Submit feedback for this data sheet. REFERENCE MATERIALS Informational Advantiv Advanced TV Solutions Technical Articles Analysis of Common Failures of HDMI CT This page is dynamically generated by Analog Devices, Inc., and inserted into this data sheet. A dynamic change to the content on this page will not trigger a change to either the revision number or the content of the product data sheet. This dynamic page may be frequently modified.