October 1994

8

Philips Semiconductors

Preliminary specification

YUV picture improvement processor based

on histogram modification

TDA9170

Window formats

Table 7

Line frequency start stop format.

Notes

1. Start and stop events are relative to the leading edge of the BK/CLP pulse of the sandcastle.

2. fh is defined as the line frequency.

Table 8

Field frequency start stop format.

Note

1. The start event is relative to the trailing edge of the first BK/CLP pulse after a field pulse recognition. The stop event

is relative to the actual start event.

UNIT

Start (LWS)

4.5

µs

Stop (LWP)

26.5

µs

Default

DEC(ST3, ST2, ST1, ST0) = 2

DEC(SP3, SP2, SP1, SP0) = 14

TIMING

UNIT

Start (FWS)

10 + 6

× DEC(ST3, ST2, ST1, ST0)

lines

Stop (FWP)

121 + 10

× DEC(SP3, SP2, SP1, SP0)

lines

Default

DEC(ST3, ST2, ST1, ST0) = 9

DEC(SP3, SP2, SP1, SP0) = 4