Smpte372 dual link support, Hd-sdi dual link to 3g-sdi (level b) conversion, Smpte372 dual link support -2 – Altera SDI II MegaCore User Manual
Page 7
• Triple standard support for SD-SDI, HD-SDI, and 3G-SDI
• Multi standard support for SD-SDI, HD-SDI, 3G-SDI, 6G-SDI, and 12G-SDI
• SMPTE425M level A support (direct source image formatting)
• SMPTE425M level B support (dual link mapping)
• SMPTE RP168 switching support
Table 2-1: SDI Standard Support
Table below lists the SDI standard support for various FPGA devices.
Device Family
SDI Standard
Single Standard
Multiple Standards
SD-SDI
HD-SDI
3G-SDI
Dual Link
HD-SDI
Dual
Standard
(up to HD)
Triple
Standard
(up to 3G)
Multi Standard
(up to 12G)
Arria V
GX
Yes
Yes
Yes
Yes
Yes
Yes
No
Arria V
GZ
Yes
Yes
Yes
Yes
Yes
Yes
No
Stratix V
Yes
Yes
Yes
Yes
Yes
Yes
No
Cyclone V
Yes
Yes
Yes
Yes
Yes
Yes
No
Arria 10
No
Yes
Yes
Yes
No
Yes
Yes
SMPTE372 Dual Link Support
Recording studios support HD 1080p format by using a dual-link connection (SMPTE372) from cameras
to the mixing and recording equipment. The SMPTE 372 specification defines a way of interconnecting
digital video equipment with a dual link HD-SDI, based upon the SMPTE292 specification data structure.
The total data rate of the dual link connection is 2.97 Gbps or 2.97/1.001 Gbps.
HD-SDI Dual Link to 3G-SDI (Level B) Conversion
To interface between a HD-SDI dual link receiver and 3G-SDI single link transmitter equipment, perform
a HD-SDI dual link to 3G-SDI (level B) conversion. Level B is defined as 2× SMPTE292 HD-SDI
mapping, including SMPTE372 dual link mapping.
This conversion takes either two 1.485 Gbps dual link signals or two separate co-timed HD signals and
combines them into a single 3G-SDI stream.
2-2
SMPTE372 Dual Link Support
UG-01125
2015.05.04
Altera Corporation
SDI II IP Core Overview