Datasheet

Table Of Contents
ADV7188
Rev. A | Page 63 of 112
SYSTEM HAS
LOST LOCK
STDI VALID?
RECONFIGURE
SYSTEM
APPROPRIATELY
SYSTEM FLAGS
UNSUPPORTED
INPUT?
READ
STDI VALID
MONITORS
IN-LOCK STATUS
ENABLE STDI FUNCTION
STDI_LINE_COUNT_MODE = 1
READ AND INTERPRET BL[3:0],
LCF[10:0], LCVS[4:0], AND
FCL[12:0]
TO DETERMINE
INPUT STANDARD
NO
YES
SYSTEM SUPPORTS
INPUT STANDARD?
YES
NO
05478-055
STDI Readback Values for SD, PR, and HD
The readback values provided are only valid when using a
crystal with the recommended 28.63636 MHz frequency.
Table 76. STDI Results for Video Standards (SD, PR, and HD)
Video Standard BL [13:0] LCF [10:0] LCVS [4:0]
525i 60 14552 ± 80 261 ± 50 3 ± 3
240p 60 14552 ± 80 261 ± 50 2 ± 2
625i 50 14653 ± 80 311 ± 50 2 ± 2
288p 50 14654 ± 80 313 ± 50 2 ± 2
480p 60 7271 ± 40 524 ± 50 5 ± 2
720p 50 6101 ± 40 749 ± 50 4 ± 2
720p 60 5083 ± 40 749 ± 50 4 ± 2
1035i 30 6780 ± 40 562 ± 50 5 ± 2
1080i 25 7322 ± 40 1249 ± 50 0 ± 2
1080i 30 6780 ± 40 561 ± 50 4 ± 2
1080p 25 8137 ± 40 1124 ± 50 4 ± 2
1080p 50 4064 ± 40 1124 ± 50 4 ± 2
1080p 60 3385 ± 40 1124 ± 50 4 ± 2
1152i 50 Wide 7321 ± 40 623 ± 50 0 ± 2
1152i 50 Full 7321 ± 40 623 ± 50 4 ± 2
AIN4
AIN5
AIN6
SOY
ADV7188
Y
Pr
Pb
100nF
100nF
100nF
100nF
05478-056
Figure 37. Example Connection of SOY pin
Figure 38. Example Use of STDI Block