SiS 307DV which is an accompany chip of SiS VGA chip, integrates

a. A NTSC/PAL video encoder for TV display.
b. HDTV video encoder which supports 480i, 480p, 720p and 1080i output modes
c. A single link TMDS transmitter with excellent 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 SiS307DV can display independent resolutions, color depths and frame rates different from the primary VGA chip. SiS307DV receives digital video signals and control signals from the primary VGA chip then transforms them into composite, S or component video output for TV display, TMDS signals for LCD display.

The output display combination can be one of the three:

(1) primary CRT+SiS307DV TV,
(2) primary CRT+SiS307DV LCD,
(3) SiS307DV TV+SiS307DV LCD.

The package type of SiS307DV is 16928-pin BGA.