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It is important to note that the card will not continuously color frame lock to the reference. The card
will re-lock to the reference color frame only when one of the following conditions occur:
• Card boot-up — After a power on, or re-boot, with a valid NTSC or PAL reference signal applied
to the selected reference input.
• Change in reference — Either by input selection, or removal and return, of the reference signal.
• Output timing change — Adjusting the output timing will trigger another color frame re-lock
sequence.
Output Notes
This section provides additional information when the configuring outputs of the SPG-8260(-W).
Alarms
The card-edge LEDs and DashBoard alerts the user when the reference and the selected frame rate
do not match.
For More Information on...
• card-edge LEDs, refer to "Status and Selection LEDs on the Card Edge".
• DashBoard status fields, refer to Table 3, Table 6, and Table 7.
Free-run
While free-running, the card operates with an internal reference, and output timing can be adjusted
relative to this internal reference. The timing of each output with respect to each other will be
maintained.
While free-running, the card still conforms to the following:
• All AES interfaces conform to SMPTE 276M, and AES-3id-2001.
• All HD interfaces conform to SMPTE 274M, or SMPTE 296M.
• All SD interfaces conform to SMPTE 170M (NTSC) or ITU-R BT.470 (PAL-B).
Using a Delay
Each pair of outputs can be independently timed relative to the reference. The delay will be in
increments of the output's interface sampling frequency up to one frame of video.
Audio Output Timing (SPG-8260 only)
The SPG-8260 includes an Audio Output Co-Timing option in the card-edge menus
DashBoard. This option enables you to specify which video output the audio will follow. If there is
any change, in timing or format, the audio attempts to re-lock thereby causing a glitch in the audio
timing. If a tone is selected, the card mutes the tone during this period of re-acquiring of timing. The
AES/Word Clock outputs are framed as per AES11-2009.
• Audio Output Timing with an AES/Work Clock Reference — If the reference into the SPG-8260
is AES or Word Clock, the audio outputs will be co-timed to the reference.
• Audio Output Timing with a Video Reference — If the reference into the SPG-8260 is a video
signal, or if the SPG-8260 is set to the internal reference, the audio output (AES or Word Clock) will
be co-timed to one of the video outputs.
1. This function is only available on legacy cards with the 4-character display and the SW1 and SW2 switches.
SPG-8260(-W) User Guide (v5.0)
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Configuration • 27
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