1 Scope
This standard defines a bit-serial digital coaxial and
fiber-optic interface for HDTV component signals
operating at data rates in the range of 1.3 Gb/s to 1.5
Gb/s. Bit-parallel data derived from a specified source
format are multiplexed and serialized to form the serial
data stream. A common data format and channel
coding are used based on modifications, if necessary,
to the source format parallel data for a given high-
definition television system. Coaxial cable interfaces
are suitable for application where the signal loss does
not exceed an amount specified by the receiver manu-
facturer. Typical loss amounts would be in the range
of up to 20 dB at one-half the clock frequency. Fiber
optic interfaces are suitable for application at up to 2
km of distance using single-mode fiber.
Several source formats are referenced and others
operating within the covered data rate range may be
serialized based on the techniques defined by this
standard. Revisions to this standard may add other
source formats when approved documents are avail-
able.
2 Normative references
The following standards contain provisions which,
through reference in this text, constitute provisions of
this standard. At the time of publication, the editions
indicated were 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 standards
indicated below.
SMPTE 260M-1992, Television ---- Digital Repre-
sentation and Bit-Parallel Interface ----1125/60 High-
Definition Production System
ANSI/SMPTE 274M-1995, Television ---- 1920 × 1080
Scanning and Interface
ANSI/SMPTE 291M-1996, Television ---- Ancillary
Data Packet and Space Formatting
SMPTE RP 184-1995, Measurement of Jitter in Bit-
Serial Digital Interfaces
IEC 169-8 (1978), Part 8: R.F. Coaxial Connectors with
Inner Diameter of Outer Conductor 6.5 mm (0.256 in)
with Bayonet Lock ---- Characteristic Impedance 50
Ohms (Type BNC), and Appendix A (1993)
IEC 793-2 (1992), Optical Fibres, Part 2: Product
Specifications
IEC 874-7 (1990), Part 7: Fibre Optic Connector
Type FC
3 Definition of terms
3.1 source format: Data structure and documen-
tation which defines the bit-parallel input to the
serialization process for a given high-definition
television system. Source formats are referenced
in SMPTE 260M and ANSI/SMPTE 274M.
3.2 interim specifications: Values given in
brackets are interim and subject to revision
following further investigation by the SMPTE
Committee on Television Signal Technology
(see 8.1.2, 8.1.9, 8.2.1, and 9.1).
4 Source format data
4.1 Source data shall be 10-bit words repre-
senting an E
Y
′,
E
Cb
′, E
Cr
′ signal, where E
Y
′ is
one formatted parallel data stream and E
Cb
′
,
E
Cr
′
for Television ----
Bit-Serial Digital Interface for
High-Definition Television Systems
CAUTION NOTICE: This Standard may be revised or withdrawn at any time. The procedures of the Standard Developer require that action be taken to reaffirm, revise,
or withdraw this standard no later than five years from the date of publication. Purchasers of standards may receive current information on all standards by calling or
writing the Standard Developer. Printed in USA.
ANSI/SMPTE 292M-1996
SMPTE STANDARD
Page 1 of 9 pages
Approved
May 7, 1996
Copyright © 1996 by THE SOCIETY OF
MOTION PICTURE AND TELEVISION ENGINEERS
595 W. Hartsdale Ave., White Plains, NY 10607
(914) 761-1100