Compaq MP1400 Service Manual page 15

SERVICE MANUAL
2-3.1.1 Description
Analog Input
Digital Input
DMD
Martin 2-8
The AD9884 is a complete 8-bit Msps monolithic analog interface
optimized for capturing RGB graphics signals from personal
computers and workstations. Its 140 Msps encode rate capability
and full-power analog bandwidth of 500 MHz supports display
resolutions of up to 1280*1024 (SXGA) at 75Hz with sufficient
input bandwidth to accurately acquire and digitize each pixel.
To minimize system cost and power dissipation the AD9884
includes an internal +1.25V reference, PLL to generate a pixel
clock from HSYNC, and programmable gain, offset, and clamp
circuits.
The SiI 141 uses PanelLink Digital technology to support displays
ranging from VGA to High Refresh XGA (25-86 MHz), with a
flexible single or dual pixel out interface and selectable output
drive, the SiI 141 receiver supports up to true color panels (24
bit/pixel, 16.7M colors) in 1 pixel/clock mode (18 bit/pixel in a
pixel/clock mode). PanelLink also features an inter-pair skew
tolerance up to 1 full input clock cycle and a highly jitter tolerant
PLL design.
PanelLink Digital technology simplifies PC design by resolving
many of the system level issues associated with high-speed digital
design, providing the system designer with a digital interface
solution that is quicker to market and lower in cost.
The DMD 8460_A is a spatial light modulator that consists of an
848(H)*600(V) array of aluminum micro-mechanical mirrors on a
17-micrometer(um) pitch. Each mirror can be individually
deflected at an angle of +/- 10 degrees about a hinged diagonal
axis. The deflection angle (positive or negative) of the mirrors
can be individually controlled by means of underlying CMOS and
addressing circuitry and mirror reset signals. Effectively, the DMD
is an electrical input, optical output memory device.