PNX8510 Просмотр технического описания (PDF) - Philips Electronics
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PNX8510 Datasheet PDF : 92 Pages
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Philips Semiconductors
PNX8510/11
Analog companion chip
Table 2: Pin description …continued
Symbol
Pin Type Description
VREF2(AUD)
VDD02(ADAC)
AOUT_L2
93 -
Audio DAC reference
94 -
Audio DAC output buffer supply
95 O Audio output for left secondary audio channel
AOUT_R1
96 O Audio output for right primary audio channel
VREF1(AUD)
VDDO1(ADAC)
VSS1(ADAC)
AOUT_L1
97 -
98 -
99 -
100 O
Audio DAC reference
Audio DAC output buffer supply
Audio DAC ground
Audio output for left primary audio channel
7. Functional description
7.1 Video pipeline
The video pipeline contains two independent video channels. The primary channel is
used to display graphic or video content on a standard television, CRT monitor or an
HDTV system. The secondary video channel may connect to a VCR or a second
standard TV for recording or secondary display purposes. No high definition or RGB
output is available through the second video channel.
CCIR656-DEMUX
VBI-EXTRACT
DE-INTERLEAVE
PRIMARY
DENC
RGB
BYPASS
R/V/C-DAC
G/Y-DAC
B/U-DAC
Y/CVBS-DAC
VOUT2
VOUT3
VOUT4
VOUT1
SECONDARY
DENC
Fig 3. Video path block diagram
Y/CVBS-DAC
C-DAC
MDB637
VOUT5
VOUT6
The two video pipelines are driven by two standard D1 interfaces, which can operate
in various modes in 8 or 10-bit precision. The video modes are described below.
7.1.1 Video modes
The video interfaces and sync raster engines are designed in a generic way. The only
limiting factor is the data rate of the received video streams. All formats with a total
interface speed requirement below 81 MHz can be displayed by the PNX8510/11.
Table 3: Primary video channel standard interface modes
Interface modes
Mode
4:4:4 RGB or YUV or YCrCb or YPrPb
4:4:4 Muxed Components 10/8-bit
4:2:2 YUV or YCrCb or YPrPb
4:2:2 Muxed components 10/8-bit
Interface speed
up to 81 MHz
up to 81 MHz
9397 750 12612
Product data
Rev. 04 – 12 January 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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