10-Bit, SDTV Video Decoder with Differential Inputs Data Sheet ADV7182A FEATURES GENERAL DESCRIPTION 1 Worldwide NTSC/PAL/SECAM color demodulation support The ADV7182A has the same pinout and is software One 10-bit ADC, 4 oversampling per channel for CVBS, S-Video compatible with the ADV7182. mode, and YPrPb The ADV7182A is a versatile, one chip, multiformat video 4 analog video input channels with on-chip antialiasing filter decoder that automatically detects standard analog baseband Video input support for CVBS (composite), S-Video (Y/C), and video signals and converts them into YCbCr 4:2:2 component YPrPb (component) video data streams. Fully differential, pseudo differential, and single-ended CVBS The analog input of the ADV7182A features a single, 10-bit video input support analog-to-digital converter (ADC) and an on-chip differential to NTSC/PAL/SECAM autodetection single-ended converter to accommodate direct connection of Up to 4 V common-mode input range solution differential, pseudo differential, or single-ended CVBS without Excellent common-mode rejection capability the need for external amplifier circuitry. 5-line adaptive comb filters and CTI/DNR video enhancement Integrated AGC with adaptive peak white mode The standard definition processor (SDP) on the ADV7182A Fast switch capability automatically detects NTSC, PAL, and SECAM standards in ACE the form of CVBS (composite), S-Video (Y/C), and YPrPb Downdither (8 bits to 6 bits) (component). The analog video is converted into a 4:2:2 Rovi copy protection detection component video data stream that is compatible with the 8-bit 8-bit ITU-R BT.656 YCrCb 4:2:2 output and HS, VS, or field ITU-R BT.656 interface standard. External synchronization synchronization timing signals are also available. Full-featured VBI data slicer with teletext support (WST) The ADV7182A is provided in a space-saving, LFCSP, surface- Power-down mode available mount, RoHS compliant package. It is offered in an automotive 2 2-wire serial MPU interface (I C compatible) grade rated over the 40C to +105C temperature range, as Single 1.8 V supply possible well as a 40C to +85C industrial temperature range, making 40C to +105C automotive temperature grade the device ideal for automotive, industrial, and consumer 40C to +85C industrial qualified temperature grade applications. 32-lead, 5 mm 5 mm, RoHS compliant LFCSP 2 The ADV7182A must be configured in accordance with the I C Qualified for automotive applications writes provided in the evaluation board script files available at APPLICATIONS www.analog.com/ADV7182A. Advanced driver assistance Automotive infotainment DVRs for video security Media players 1 Protected by U.S. Patent 5,784,120. Rev. 0 Document Feedback 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 2017 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. ADV7182A Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Video Processor .............................................................................. 22 Applications ....................................................................................... 1 Standard Definition (SD) Luma Path ...................................... 22 General Description ......................................................................... 1 SD Chroma Path ......................................................................... 22 Revision History ............................................................................... 3 ACE and Dither Processing Blocks .......................................... 23 Functional Block Diagram .............................................................. 4 Sync Processing .......................................................................... 23 Specif icat ions ..................................................................................... 5 Vertical Blank Interval (VBI) Data Recovery ............................. 23 Electrical Characteristics ............................................................. 5 General Setup .............................................................................. 23 Video Specifications ..................................................................... 6 Color Control Registers ............................................................. 25 Timing Specifications .................................................................. 7 Freerun Operation ..................................................................... 27 Analog Specifications ................................................................... 8 Clamp Operation ........................................................................ 28 Absolute Maximum Ratings ............................................................ 9 Luma Filter .................................................................................. 29 Thermal Resistance ...................................................................... 9 Chroma Filter .............................................................................. 32 ESD Caution .................................................................................. 9 Gain Operation ........................................................................... 33 Pin Configuration and Function Descriptions ........................... 10 Chroma Transient Improvement (CTI) .................................. 36 Theory of Operation ...................................................................... 11 Digital Noise Reduction (DNR) and Luma Peaking Filter ... 37 Analog Front End (AFE) ........................................................... 11 Comb Filters ................................................................................ 37 Standard Definition Processor ................................................. 11 IF Filter Compensation ............................................................. 39 Power Supply Sequencing .............................................................. 13 Adaptive Contrast Enhancement (ACE) ................................. 40 Optimal Power-Up Sequence ................................................... 13 Dither Function .......................................................................... 41 Simplified Power-Up Sequence ................................................ 13 AV Code Insertion and Controls ............................................. 41 Universal Power Supply ............................................................. 13 Synchronization Output Signals ............................................... 42 Crystal Oscillator Design............................................................... 14 Sync Processing .......................................................................... 50 Input Networks ............................................................................... 15 VBI Data Decode ....................................................................... 50 2 Single-Ended Input Network .................................................... 15 I C Readback Registers .............................................................. 58 Differential Input Network ....................................................... 15 ITU-R BT.656 Tx Configuration .................................................. 63 2 Short to Battery (STB) Protection ............................................ 15 I C Interface .................................................................................... 64 Analog Front End ........................................................................... 16 Register Access ............................................................................ 65 Input Configuration ................................................................... 16 Register Programming ............................................................... 65 2 Analog Input Muxing ................................................................ 16 I C Sequencer .............................................................................. 65 2 Antialiasing Filters ..................................................................... 17 I C Register Maps ........................................................................... 66 Global Control Registers ............................................................... 18 PCB Layout Recommendations .................................................. 100 Power Saving Modes .................................................................. 18 Analog Interface Inputs ........................................................... 100 Reset Control .............................................................................. 18 Power Supply Decoupling ....................................................... 100 Global Pin Control ..................................................................... 18 VREFN and VREFP ................................................................. 100 Global Status Registers ................................................................... 20 Digital Outputs (Both Data and Clocks) .............................. 100 Identification Register ................................................................ 20 Digital Inputs ............................................................................ 100 Status 1 Register .......................................................................... 20 Typical Circuit Connection ......................................................... 101 Status 2 Register .......................................................................... 20 Outline Dimensions ..................................................................... 102 Status 3 Register .......................................................................... 20 Ordering Guide ........................................................................ 102 Autodetection Result .................................................................. 21 Automotive Products ............................................................... 102 Rev. 0 Page 2 of 102