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參數資料
| 型號： | 935269580557 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封裝： | PLASTIC, HTQFP-100 |
| 文件頁數： | 2/84頁 |
| 文件大小： | 1054K |
| 代理商： | 935269580557 |
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Koninklijke Philips Electronics N.V. Copyright 2001. All rights reserved.
9397 750 08865
10 of 84
Rev. 02 — 8 October 2001
Product data
PNX8510/11
Philips Semiconductors
Analog Companion Chip
The third DAC of the primary video channel (VOUT3) carries the luminance channel if the
VBSEN bit is set in standard definition mode (SD_HD=1’b1). This DAC streams out the Green/Y
channel if the VBSEN bit is reset (RGB/Component mode operation). If the high definition data
path is operational (SD_HD=1’b0) this DAC carries the Green or U channel depending on
whether the HD path is operated in YUV or RGB mode.
The configuration of the fourth DAC in the primary video data path (VOUT4) can not be changed
with a programming register. This DAC carries the Blue or U channel in standard definition mode
and the Blue or V channel if the high definition data path is active.
The configuration of the DACs for the secondary video data path is limited to the CVBS/Y DAC
(VOUT5). If the CVBSEN bit in the DAC control register is set this DAC carries the CVBS signal.
Resetting the bit results in the Y signal being assigned to this DAC.
The second DAC of the secondary video pipeline (VDAC6) always carries the chrominance
signal.
2.5 VBI Data
VBI data extraction from a D1 data stream is only supported for standard definition formats. The
extraction follows the concept of Philips video decoders, such as the SAA7114. Both video
interfaces can carry VBI data information. The content of the VBI data is entirely determined by
the source decoder chip software driver.
The PNX8510/11 supports two VBI data streams. The limitation to two VBI data streams implies
certain limitations when using multiple PNX8510/11 chips in a system. In this case one
PNX8510/11 gets either one or two (all) VBI data streams. The other PNX8510/11 IC would get
one or none.
Only the ANC/SAV-EAV header style VBI data encoding mode is supported in the PNX8510/11.
According to these standards VBI data is always inserted in the horizontal blanking interval of a
line. The data is preceded by an ANC header which is programmable. An internal header
following the ANC contains a programmable sliced data identifier with the number of data bytes
transmitted and two internal identification tokens containing data type, field type and line
number. Figure 11 illustrates how the data is encoded in the horizontal blanking interval.
Note: In standard definition mode, only 8 of the 10 available signal lines of the D1 interface are
used. The two LSB lines are fixed to zero.
Figure 11: ANC VBI Data Insertion in D1
FF
00
SAV
EAV
FF
00 DID SDID BC IDI1 IDI2
D1
D2
Ddc-1 Ddc
FF
00
Timing Reference
Code
End Active Video
ANC Header
Internal Header
Sliced Data
Timing Reference
Code
Start Active Video
Horizontal Line Blanking Interval
*See the following tables for code descriptions.
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