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Sync Separator Threshold

H-PLL Pre-Coast

H-PLL Post-Coast

TVP7002

SLES206 – MAY 2007

Subaddress

11h

Default (20h)

7

6

5

4

3

2

1

0

Sync Separator Threshold [7:0]

Sync Separator Threshold [7:0]: Sets how many internal clock reference periods the sync separator counts to before toggling high or low.

Sync Separator Threshold [7:0]

× (minimum clock period) must be greater than the width of the negative sync pulse. This setting can also

affect the position of the VSOUT. See register 22h.

Note: The internal clock reference is typically 6.3 MHz, but a minimum clock period of 133 ns is recommended to allow for clock variation.

Subaddress

12h

Default (00h)

7

6

5

4

3

2

1

0

Pre-Coast [7:0]

Pre-Coast [7:0]: Sets the number of HSYNC periods that coast becomes active prior to VSYNC leading edge.

Subaddress

13h

Default (00h)

7

6

5

4

3

2

1

0

Post-Coast [7:0]

Post-Coast [7:0]: Sets the number of HSYNC periods that coast stays active following VSYNC trailing edge. Post-Coast settings must be

extended to include Macrovision pseudo syncs when Macrovision is present.

Table 11. Recommended H-PLL Pre-Coast and H-PLL Post-Coast Settings

STANDARD

H-PLL PRE_COAST

H-PLL POST-COAST

480i/p with Macrovision

3

0Ch

576i/p with Macrovision

3

0Ch

1080i

0

0

1080p

0

0

720p

0

0

31

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