Analog Devices Advantiv ADV7611 Hardware User's Manual page 121

Hardware User Guide
STDI Readback Values
Table 45. STDI Readback Values for SD, PR, and HD
Standard CHx_BL[13:0] 28.63636 MHz XTAL
720p SMPTE 296M 5091
1125i SMPTE 274M 6788
525p BT 1358 7270
625p BT 1358 7331
1250i BT 709/SMPTE 295 7331
1125i SMPTE 274M 6 8145
1125p SMPTE 274M 10 848
525i 14560
625i 14662
Note: To obtain the expected values of BL or FL at any other XTAL frequency, use the formula in Equation 9, computation of expected BL
and FCL for XTAL in use.
BL = BL
XTAL_F1_MHz 28.63636MHz_XTAL
where XTAL_FREQ is the clock frequency of the XTAL used.
Example: For SD525i at 24.576 MHz XTAL:
BL = 14585 × 24.576/28.6363 ≈ 12,517
FL = 1868 × 24.576/28.6363 ≈ 1603
The values of LCF and LCVS do not change with the XTAL frequency.
STDI Readback Values for GR
Table 46. STDI Results for Graphics Standards
Standard CHx_BL[13:0] 28.63636 MHz XTAL
XGA 85 3327
SXGA 60 3571
XGA 75 3808
XGA 70 4048
SVGA 85 4259
XGA 60 4726
SVGA 72 4756
SVGA 75 4878
VGA 85 5286
VGA 72 6042
SVGA 60 6039
VGA 75 6098
SVGA 56 6508
VGA 60 7272
Note: To obtain the expected values of BL or FCL at any other XTAL frequency, use the formula shown in Equation 9.
Example: For XGA75 at 24.576 MHz XTAL:
BL = 3824 × 24.576/28.63636 ≈ 3282
FCL = 1493 × 24.576/28.63636 ≈ 1281
Figure 46 shows the parameters from Table 46 plotted against each other at the recommended 28.63636 MHz XTAL operation.
× XTAL_FREQ/28.6363 (8)
Rev. A | Page 121 of 184
CHx_LCF[10:0] CHx_LCVS[4:0]
750 4 to 5
562 to 563 4 to 5
525 5 to 6
625 4 to 5
625 1
562 to 563 4 to 5
1125 4 to 5
262 to 263 3
312 to 313 2 to 3
CHx_LCF[10:0] CHx_LCVS[4:0]
805 to 808 0 to 3
1063 to 1066 0 to 3
797 to 800 0 to 3
800 to 806 0 to 6
628 to 631 0 to 3
800 to 806 0 to 6
660 to 666 0 to 6
622 to 625 0 to 3
506 to 509 0 to 3
517 to 520 0 to 3
624 to 628 0 to 4
497 to 500 0 to 3
623 to 625 0 to 2
523 to 525 0 to 2
UG-180
FCL[12:0] 28.63636 MHz XTAL
1868
1868
1868
2237
4474
1868
1868
1868
2237
FCL[12:0] 28.63636 MHz XTAL
1316
1868
1493
1598
1316
1868
1554
1493
1316
1554
1868
1493
1997
1868