21
8575
8575
A N/B Maintenance
A N/B Maintenance
SiS301LV, which is an accompany chip of SiS VGA chip, integrates :
A NTSC/PAL video encoder with Macrovision Ver.7.1.L1 option for TV display.
A LVDS transmitter with bi-linear scaling capability for TFT LCD panel display.
All the above functions can support dual-display features. It means that the second display device driven by
SiS301LV can display independent resolutions, color depths and frame rates different from the traditional CRT
monitor driven by primary VGA chip. SiS301LV receives digital video signals and control signals from the
primary VGA chip then transforms them into composite, S-Video or component video output for TV display,
LVDS signals for LCD display. The output display combination can be one of the three :
(1) Primary CRT+SiS301LV TV
(2) Primary CRT+SiS301LV LCD
(3) SiS301LV TV + SiS301LV LCD.
The package type of SiS301LV is 128-pin LQFP.
1.2.4 SiS301LV TV Encoder / LVDS Transmitter
General Description
P rim a ry
V G A
(S iS 6 5 0 /
S iS 3 3 0
)
V id e o
D e co d e r
S iS 3 0 1 LV
C R T
M o n ito r
L C D
M o n ito r
N TS C /P A L
TV
Fra m e
B u ffe r
F e a tu re
C o n n e c to r
1st cha nne l
2
nd
c han nel