Publicidad
Idiomas disponibles
Idiomas disponibles
13-4 Video Input
13-4-1 Video Input Outline
This Model is the two Line Video input. Line 1 Video input is CVBS1 & S-Video1 at the Rear Panel. Line 2 Video
input is CVBS2 at the Front Panel.
The analog Video signal select Line 1 or Line 2 by the IC601 (Front Micom).
VU1 (Video Decoder) diverges from the 27MHz crystal, then generates ITU-R656 (10bits) and 27MHz clock.
VU1 (Video Decoder) does closed caption, copy guard detect processing and A/D conversion of analog Video sig-
nal converted into 11bit Digital Video signal (ITU-R656 Format) is outputted via U1 (MPEG2 Decoder & Encoder
with video Encoder) of digital part.
RF
CVBS
CVBS 1
Line 1
(Rear)
Y1
Video
Input
C1
Line 2
CVBS2
(Front)
Video
Input
13-4-2 Analog Mux (BU4052)
IC201 is Analog Mux.
As Pin 9, 10 of the IC201 are controlled by the Front Micom, IC201 select RF OF CVBS(Pin12) Line1 of
CVBS[Pin14] and Line2 of CVBS[Pin 15].
The analog Video Signal of IC201 output is selected by the ic601 via VU1(Video Decoder : TW9906) of analog Video
input parts.
Samsung Electronics
CVBS
BU4052
Analog
Mux
IC201
Y
C
Fig. 13-7
ITU-R656 10bit
27MHz
Video
V_SYNC
Decoder
VU1
/RSTAV
SCL
SDA
Circuit Operating Descriptions
A/V CODEC
U1
13-9
Publicidad
