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參數(shù)資料
| 型號： | 935269576557 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 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)： | 5/84頁 |
| 文件大?。?/td> | 1054K |
| 代理商： | 935269576557 |
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Philips Semiconductors
PNX8510/11
Analog Companion Chip
9397 750 08865
Koninklijke Philips Electronics N.V. Copyright 2001. All rights reserved.
Product data
Rev. 02 — 8 October 2001
13 of 84
The secondary display consists of the Y and UV processing data path of a video encoder only.
The synchronization information will be extracted from the incoming D1 data stream. The
structure of the secondary display pipe is shown in the figure below.
2.6 PAL/NTSC/SECAM Encoder
2.6.1 General
The PAL/NTSC/SECAM encoder accepts the YUV data and encodes it into an NTSC, PAL or
SECAM video signal. From Y, U and V data, the encoder generates luminance, chrominance
and subcarrier output signals, suitable for use as CVBS or separate Y and C signals.
Luminance is modified in gain and in offset (offset is programmable to enable different black
level setups). In order to enable easy analog post filtering, luminance is interpolated from a
13.5 MHz data rate to a 27 MHz data rate, providing luminance in 10-bit resolution. This filter is
also used to define smoothed transients for synchronization pulses and the blanking period.
* Macrovision is not available in the PNX8511.
Figure 13: Secondary Display Pipe (Standard Definition Operation Mode)
10/8
D1
Input
Inter-
Y-Processing
UV-Processing
Mixer
Macrovision*
Sync
CVBS/Y-DAC
C-DAC
10
Video Encoder
face
Figure 14: Primary Display Pipe (HD Operation Mode)
D1-Interface
Sync
Extract
D1-Interface
Sync
Extract
DeMUX
Bypass
up-sample
Bypass
Sync-shaper
Y/R-DAC
U/Cb/Pb/G-DAC
V/Cr/Pr/B-DAC
Sync-raster
generator
H
V
V/O_E
H
CBlank
Primary
secondary D1 optional for special mode: combined D1
D1
Secondary
V/O_E
Sync-insert
Level-shift
Gain control
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