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1、 CEA Standard HIGH DEFINITION TV ANALOG COMPONENT VIDEO INTERFACE CEA-770.3-D February 2008 Copyright Consumer Electronics Association Provided by IHS under license with CEA Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 04:12:08 MDTNo reproduction or networking permitted without license f
2、rom IHS -,-,- NOTICE Consumer Electronics Association (CEA) Standards, Bulletins and other technical publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and ass
3、isting the purchaser in selecting and obtaining with minimum delay the proper product for his particular need. Existence of such Standards, Bulletins and other technical publications shall not in any respect preclude any member or nonmember of CEA from manufacturing or selling products not conformin
4、g to such Standards, Bulletins or other technical publications, nor shall the existence of such Standards, Bulletins and other technical publications preclude their voluntary use by those other than CEA members, whether the standard is to be used either domestically or internationally. Standards, Bu
5、lletins and other technical publications are adopted by CEA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, CEA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard, Bulletin
6、or other technical publication. This CEA Standard is considered to have International Standardization implication, but the International Electrotechnical Commission activity has not progressed to the point where a valid comparison between the CEA Standard and the IEC document can be made. This Stand
7、ard does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its us
8、e. (Formulated under the cognizance of the CEAs R4.8 DTV Interface Subcommittee.) Published by CONSUMER ELECTRONICS ASSOCIATION 2008 Technology Amendment 2 (60169-8-am2-1997-11), Annex A (informative): Information for interface dimensions of 75 ohm characteristic impedance connector with unspecified
9、 reflection factor ITU-R BT.709-2, Parameter Values for the HDTV Standard for Production and International Program Exchange ANSI/SMPTE Standard 274M (1995), Standard for Television - 1920 X 1080 Scanning and Analog and Parallel Digital Interfaces for Multiple-Picture Rates ANSI/SMPTE Standard 296M (
10、1997), Standard for Television - 1280 X 720 Scanning, Analog and Digital Representation and Analog Interface NOTEBy permission from the Society of Motion Picture and Television Engineers, sections of this standard are directly obtained from SMPTE Standard 274M (1995) and SMPTE Standard 296M. 1 This
11、document was formerly designated as IEC 169-8. 1 Copyright Consumer Electronics Association Provided by IHS under license with CEA Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 04:12:08 MDTNo reproduction or networking permitted without license from IHS -,-,- CEA-770.3-D SMPTE RP 177 (199
12、3), Derivation of Basic Television Color Equations 2.1.2 Normative Reference Acquisition CIE Standards: Global Engineering Documents, World Headquarters, 15 Inverness Way East, Englewood, CO USA 80112-5776; Phone 800-854-7179; Fax 303-397-2740; Internet http:/; Email IEC Standards: Global Engineeri
13、ng Documents, World Headquarters, 15 Inverness Way East, Englewood, CO USA 80112-5776; Phone 800-854-7179; Fax 303-397-2740; Internet http:/; Email IEC Central Office, 3, rue de Varembe, PO Box 131, CH-1211 Geneva 20, Switzerland; Phone +41 22 919 02 11; Fax +41 22 919 03 00; Internet http:/www.iec
14、.ch; Email pubinforiec.ch ITU Standards: International Telecommunications Union, Place des Nations, CH-1211 Geneva 20, Switzerland; Phone +41 22 730 5111; Fax +41 22 733 7256; Internet http:/www.itu.ch/publications/bookstore.html; Email itumailitu.int SMPTE Standards: Society of Motion Picture Phone
15、 914-761-1100; Fax 914-761-3115; Internet http:/www.smpte.org; Email engsmpte.org 2.2 Informative References 2.2.1 Informative References discussion The following references contain provisions, which, through reference in this text, constitute informative provisions of this standard. At the time of
16、publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated in 2.1.1 2.2.2 Informative References List BS EN 60933-5:1
17、993 Audio, video and audiovisual systems. Interconnections and matching values. Specification for Y/C connector for video systems. Electrical matching values and description of the connector CEI IEC 933-5: Y/C Connector for video systems electrical matching values and description of the connector. (
18、Also known as: IEC 60933-5) 2.2.3 Informative Reference Acquisition CIE Standards: Global Engineering Documents, World Headquarters, 15 Inverness Way East, Englewood, CO USA 80112-5776; Phone 800-854-7179; Fax 303-397-2740; Internet http:/; Email BS EN Standards: 2 Copyright Consumer Electronics As
19、sociation Provided by IHS under license with CEA Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 04:12:08 MDTNo reproduction or networking permitted without license from IHS -,-,- CEA-770.3-D BSI British Standards, 389 Chiswick High Road, London, W4 4AL, United Kingdom; Phone +44 (0)20 8996
20、 9001; Fax +44 (0)20 8996 7001; Internet http:/www.bsi-; Email: 3 General Scanning systems allowed in this standard shall conform to the parameters in Table 1. Scanning Nomenclatur e Samples per active line (S/AL) Active lines per frame Frame Rate (Hz) Scanning format Pixel Freq. (MHz) Samples per
21、total line (S/TL) Total lines per frame 1 1280 x 720 1280 720 60 Progressive 74.25 1650 750 2 1280 x 720 1280 720 60/1.001 Progressive 74.176 1650 750 3 1920 x 1080 1920 1080 30 2:1 Interlace 74.25 2200 1125 4 1920 x 1080 1920 1080 30/1.001 2:1 Interlace 74.176 2200 1125 Note-Scanning systems 1 syst
22、ems 3 lines in a frame shall be uniformly scanned from top to bottom. Lines are numbered in time sequence according to the raster structure described in Section 6. 4.3 Timing Instants Timing instants in each line shall be defined with respect to a horizontal datum denoted by 0H that is established b
23、y horizontal synchronizing (sync) information in Section 7. Each line shall be represented by a number of samples, equally spaced, as indicated by the column S/TL in Table 1. The time between any two adjacent sample instants is called the reference clock interval T. In each scanning system of Table
24、1, T shall be equal to the inverse of pixel frequency. 4.4 Progressive Systems A progressive system shall convey all the active picture lines per frame in order from top to bottom. 4.5 Interlaced Systems An interlaced system shall scan a frame as a first field then as a second field, in which the sc
25、an lines of each field have twice the vertical spatial sampling pitch of the frame. Scanning lines in the second field shall be displaced vertically by the vertical sampling pitch, and scanning timing shall be delayed temporally by half the frame time, from scanning lines in the first field. For the
26、 1080i system, the first field shall convey 540 active picture lines, starting with the top picture line of the frame. The second field shall convey 540 active picture lines, ending with the bottom picture line of the frame. 5 System Colorimetry 5.1 Colorimetric Analysis and Optoelectronic Transfer
27、Equipment should be designed in accordance with the colorimetric analysis and optoelectronic transfer function defined in this section. This corresponds to ITU-R BT.709. 3 Copyright Consumer Electronics Association Provided by IHS under license with CEA Licensee=Boeing Co/5910770001 Not for Resale,
28、07/25/2008 04:12:08 MDTNo reproduction or networking permitted without license from IHS -,-,- CEA-770.3-D Throughout this standard, references to signals, represented by a single primed letter such as R, G, B, refer to signals to which the following transfer characteristics have been applied. Such s
29、ignals are commonly described as being gamma corrected. 5.2 Wide-Gamut Color Signals Digital representation and treatment of wide-gamut color signals are not specified in the current edition of the international standard for HDTV colorimetry, ITU-R BT.709-2. In particular, coding ranges for digital
30、primary components R, G, and B are not specified. Designers of new equipment are urged to take into account the approach and current status of international agreement. 5.3 Linear Representation Picture information shall be linearly represented by red, green, and blue tristimulus values (RGB), lying
31、in the range 0 (reference black) to 1 (reference white), whose colorimetric attributes are based upon reference primaries with the chromaticity coordinates in Table 2, in conformance with ITU-R BT.709-2, and whose reference white conforms to CIE D65 as defined by CIE 15.2. CIE x CIE y Red primary 0.
32、640 0.330 Green primary 0.300 0.600 Blue primary 0.150 0.060 White reference 0.3127 0.3290 Table 2 Chromaticity Coordinates NOTE-Under some circumstances the colorimetry of the source video may not be ITU-R-BT 709-2 compliant. 5.4 Computing Nonlinear Primary Components From the red, green, and blue
33、tristimulus values, three nonlinear primary components R, G, and B shall be computed according to the optoelectronic transfer function of ITU-R BT.709, where L denotes a tristimulus value and V denotes a nonlinear primary signal: V = 4.5, 0 L 0.018 1.099L -0.099, 0.018 L 1 0.45 5.5 Signal Level Rang
34、e To ensure the proper interchange of picture information between analog and digital representations, signal levels shall be completely contained in the range specified between reference black and reference white specified in Section 8, except for overshoots and under-shoots due to processing. 5.6 Y
35、 Computation The Y component shall be computed as a weighted sum of nonlinear R G B primary components, using coefficients calculated from the reference primaries according to the method given in SMPTE RP 177: Y = 0.2126 R + 0.7152 G + 0.0722 B 4 Copyright Consumer Electronics Association Provided b
36、y IHS under license with CEA Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 04:12:08 MDTNo reproduction or networking permitted without license from IHS -,-,- CEA-770.3-D 5.7 Color-Difference Component Signals Color-difference component signals PB and PR having the same excursion as the Y
37、component shall be computed as follows: PB = 0.5 (B-Y) 1 - 0.0722 PR = 0.5 (R-Y) 1- 0.2126 6 Raster Structures 6.1 Vertical Timing Details for the vertical timing for each scanning system of Table 1 are presented in Figure 1 and Figure 2. 6.2 Frame Lines In progressive systems of 720p, each frame sh
38、all comprise 750 lines including: a) vertical blanking, lines 1 though 25 inclusive (including vertical sync, lines 1 through 5 inclusive) and lines 746 through 750 lines inclusive; and b) picture, 720 lines, 26 through 745 inclusive. 6.3 Field Lines In interlaced systems of 1080i, the first field s
39、hall comprise 563 lines including: a) vertical blanking, lines 1 though 20 inclusive and lines 561 through 563; and b) picture, 540 lines, 21 through 560 inclusive. The second field shall comprise 562 lines, including: c) vertical blanking: lines 564 through 583 inclusive and lines 1124 and 1125; an
40、d d) picture, 540 lines, 584 through 1123 inclusive. Interlaced analog vertical sync shall be located on lines 1 through 5 for the first field and from halfway through line 563 to halfway through line 568 for the second field. 6.4 Blanking Level During time intervals not otherwise used, the Y, PB, P
41、R, shall have a blanking level corresponding to zero volts (reference black). 6.5 Clean Aperture The aspect ratio of the image for each system is represented by the production aperture, and the clean aperture shall be 16:9. The sample aspect ratio is 1:1, which defines square pixels. 6.6 Sample Encr
42、oachment An encroachment of six samples maximum on each of the left and right edges of the production aperture is allowed for horizontal blanking errors generated by analog processing. 7 Analog Synchronization 7.1 Analog Sync for the 720p Systems 7.1.1 Analog Sync Timing Details of analog sync timin
43、g are shown in Figure 4, Figure 5, and Figure 6, and are summarized in Table 3. 7.1.2 0H Datum A positive zero-crossing of a tri-level sync pulse shall define the 0H datum for each line. A negative-going transition precedes this instant by 40 reference clock intervals, and another negative-going tra
44、nsition follows this instant by 40 reference clock intervals. 5 Copyright Consumer Electronics Association Provided by IHS under license with CEA Licensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 04:12:08 MDTNo reproduction or networking permitted without license from IHS -,-,- CEA-770.3-D 7.
45、1.3 Tri-level Sync Positive Transition Positive transition of a tri-level sync pulse shall be skew symmetric with a rise time from 10% to 90% of 4 1.5 reference clock periods. The 50% point of each negative transition shall be coincident with its ideal time within a tolerance of 3 reference clock pe
46、riods. 7.1.4 Tri-Level Sync Pulse Structure and Timing The tri-level sync pulse shall have structure and timing according to Figure 4 and Figure 6. The positive peak of the sync shall have a level of +300 mV 6 mV; its negative peak shall have a level of -300 mV 6 mV. The amplitude difference between
47、 positive and negative sync pulses shall be less than 6 mV. Duration (T) Tolerance (T) a See Figure 6 40 3 b See Figure 6 1540 - 6, +0 c See Figure 6 40 3 d See Figure 6 260 -0, +6 e See Figure 6 260 -0, +6 Sync rise time 4 1.5 Total lines 1650 Active lines 1280 - 12, +0 Table 3 Sync Timing for 720p
48、 System 7.1.5 Line Blanking Level Each line that includes a vertical sync pulse shall maintain blanking level, here denoted zero, except for the interval(s) occupied by sync pulses. During the horizontal blanking interval, areas not occupied by sync shall be maintained at blanking level, here denoted zero. 7.1.6 Frame Initiatio