Table of Contents
Advertisement
2. NTSC/PAL digital encoder(STV0119)
A/V decoder receives 8 bit digital video signal(VDATA[7..0]) of ITU-R656 format, HSYMC and VSYNC from
VIC1(CL6120P). When CR/CB/Y signal muxed ITU-R656 format is inputted, first demuxing is performed to
release the format. The demuxed signal obtains each RGB/Y/C signal via RGB encoding, uminance processing
and chroma processing. At that time, a signal transformation and addition are made by copy guard processing
and obstruct the normal signal copy.
The composite signal is formed by addition of luminance and chrominance signal among them. The above
signals select RGB or Y/C/CVBS by means of switch and are outputted out of chip through DAC.
VDATA
[7:0]
2~9
VSYNC
28
HSYNC
1
MRST
25
27M
24
3. Amplifier
VQ2, VQ8, VQ14 and VQ18 peripheral circuits are amplifer parts to set the video signal outputted from
STV0119 to rated output level. VR57 is load resistance demanded by STV0119 and the gain is determined by
resistance ratio interfaced with collector and emitted of each transistor.
Video input
Samsung Electronics
CR-CB
RGB Encoding
Y
Luminance
Processing
MACROVISION
7.0.1/6.1
Chrominance
Processing
CSI2C
Fig. 2-51 VIC3(STVO119) internal block diagram
+5A
VR51
VR57
Trap
Cloed Captions
CGMS
CTRL+CFG
register
+5A
VR50
Fig. 2-52
20
19
18
17
16
11
17
16
Video output
VQ18
C1623
VR56/VR61
Reference Information
R/Y
G/C
B/CVBS
VR_RGB
IREF(RGB)
CVBS
VR_CVBS
IREF(CVBS)
2-31
Advertisement
Table of Contents
