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TDA9170 Datasheet(PDF) 7 Page - NXP Semiconductors |
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TDA9170 Datasheet(HTML) 7 Page - NXP Semiconductors |
7 / 22 page 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. LINE WINDOW(1) TIMING(2) UNIT Start (LWS) 4.5 ⁄64fh + 1⁄64fh × DEC(ST3, ST2, ST1, ST0) µs Stop (LWP) 26.5 ⁄64fh + 2⁄64fh × DEC(SP3, SP2, SP1, SP0) µs Default DEC(ST3, ST2, ST1, ST0) = 2 DEC(SP3, SP2, SP1, SP0) = 14 FIELD WINDOW(1) 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 |
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