Datasheet

1
2
8
10
3
4
9
6
5 7 11
STATE DURATION
1/12 Fixed at 2T
2/13 dtg1_spec_c-4
3/14 Fixed at 4T
4/15 dtg1_spec_d dtg1_spec_c-4
5/16 Fixed at 4T
6/17 dtg1_total_pixels/2 dtg1_spec_k dtg1_spec_d-4
7/18 Fixed at 4T
8/19 dtg1_spec_k dtg1_spec_a-12
9/20 Fixed at 4T
10/21 dtg1_spec_a-4
11/22 Fixed at 2T
THS8200
www.ti.com SLES032D –JUNE 2002–REVISED JUNE 2013
4.7.3.8 Full BTSP (Full Broad Pulse and Tri-Level Sync Pulse)
Figure 4-24. HDTV Line Type FULL_BTSP
Example: 1080I/P
THS8200 is put into 1080I mode by programming dtg1_mode = 0001. Figure 4-25 shows the required
output format of both fields for 1080I and 1080P.
When in 1080I preset mode, the (line type, breakpoint) table and frame and field size registers are filled
out as follows internally:
Breakpoints Line Type
6 BTSP_BTSP
7 NTSP_NTSP
21 FULL_NTSP
561 ACTIVE_VIDEO
563 FULL_NTSP
564 NTSP_BTSP
568 BTSP_BTSP
569 BTSP_NTSP
584 FULL_NTSP
1124 ACTIVE_VIDEO
1126 FULL_NTSP
frame_size = 10001100101; 1125d
field_size = 01000110011; 563d
From line 1 to 5, line type BTSP_BTSP is generated. When the line counter reaches line 6, the DTG
switches to line type NTSP_NTSP, etc. Note that the dtg1_spec_<x> registers need to be filled out with
the correct values to set the horizontal line timings.
Copyright © 2002–2013, Texas Instruments Incorporated Detailed Functional Description 41
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