參數(shù)資料
型號: 935269576557
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝: 14 X 14 MM, 1 MM HEIGHT, HEAT SINK, PLASTIC, SOT-638-1, TQFP-100
文件頁數(shù): 8/84頁
文件大?。?/td> 1054K
代理商: 935269576557
Koninklijke Philips Electronics N.V. Copyright 2001. All rights reserved.
9397 750 08865
16 of 84
Rev. 02 — 8 October 2001
Product data
PNX8510/11
Philips Semiconductors
Analog Companion Chip
capable of providing a combination of event-value pairs which can be used to insert certain
values at specified times in the outgoing data stream. It can also be used to generate digital
signals associated with time events. They can be used as digital H- and V-synchronization
signals.
The sync raster generation is fully programmable to accommodate different requirements. The
raster generation can be either progressive or interlaced. Digital sync signal generation (H, V,
Blank) as well as analog embedded sync generation are supported. The picture position is
adjustable through the programmable relation between the sync pulses and the video contents.
The generation of embedded analog sync pulses is bound to a number of events which can be
defined for a line. Several of these line-timing definitions can exist in parallel. For the final sync
raster composition a certain sequence of lines with different sync event properties has to be
defined. The sequence specifies a series of line types and the number of occurrences of this
specific line type.
After the sequence has completed, it restarts from the beginning. In this way, the sync raster
generation is generic and can be adopted to different standards (different sync shapes, various
H-timing, interlaced, progressive...). However, to generate a stable picture, it is important that
the sequence fits precisely to the incoming data stream in terms of the total number of pixels per
frame.
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