GS2962 Datasheet, PDF (34/82 Pages) Gennum Corporation – Integrated Narrow-Bandwidth PLL

specification. The GS2962 embeds TRS words according to this timing relationship to
maintain compatibility with the corresponding SMPTE standard.
NOTE 2: When CEA 861 standards 6 & 7 [720(1440)x480i] are presented to the GS2962,
the device embeds TRS words corresponding to the timing defined in SMPTE 125M to
maintain SMPTE compatibility.
CEA 861 standards 6 & 7 [720(1440)x480i] define the active area on lines 22 to 261 and
285 to 524 inclusive (240 active lines per field). SMPTE 125M defines the active area on
lines 20 to 263 and 283 to 525 inclusive (244 lines on field 1, 243 lines on field 2).
Therefore, in the first field, the GS2962 adds two active lines above and two active lines
below the original active image. In the second field, it adds two lines above and one line
below the original active image.
The CEA861 Timing Formats are summarized in Table 4-4. and are shown in Figure 4-9
to Figure 4-19.
Table 4-4: CEA861 Timing Formats
Format
4
5
6&7
19
20
21&22
16
31
32
33
34
Parameters
H:V:DE Input Timing 1280 x 720p @ 59.94/60Hz
H:V:DE Input Timing 1920 x 1080i @ 59.94/60Hz
H:V:DE Input Timing 720 (1440) x 480i @ 59.94/60Hz
H:V:DE Input Timing 1280 x 720p @ 50Hz
H:V:DE Input Timing 1920 x 1080i @ 50Hz
H:V:DE Input Timing 720 (1440) x 576 @ 50Hz
H:V:DE Input Timing 1920 x 1080p @ 59.94/60Hz
H:V:DE Input Timing 1920 x 1080p @ 50Hz
H:V:DE Input Timing 1920 x 1080p @ 23.94/24Hz
H:V:DE Input Timing 1920 x 1080p @ 25Hz
H:V:DE Input Timing 1920 x 1080p @ 29.97/30Hz
GS2962 3G/HD/SD-SDI Serializer with Complete
SMPTE Video Support
Data Sheet
48005 - 7
October 2010
34 of 82