ADE3050SXT View Datasheet(PDF) - STMicroelectronics
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ADE3050SXT Datasheet PDF : 88 Pages
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ADE3XXX
1 General Description
Figure 1: ADE3XXX Block Diagram
YUV Port
DMEAS
Analog Port
DVI Port
SMEAS
DATA
CTRL
LLKPLL INCLK
Scaler with
Vertical Keystone
Color
Management
OSD
SCLK
F. Synth
SCLK
P. Gen
DOTCLK
FM
F. Synth
Gamma
LUT
The ADE3XXX family of devices is capable of implementing all of the advanced features of today’s
LCD monitor products. For maximum flexibility, an external microcontroller (MCU) is used for
controlling the ADE3XXX and other monitor functions.
The ADE3XXX architecture unburdens the MCU from all data-intensive pixel manipulations,
providing an optimal blend of feature and code customization without incurring the cost of a 16-bit
processor or memory. The key interactions between the monitor MCU and the ADE3XXX can be
broken down into the features shown in the table below.
Table 1: ADE3xxx Features (Sheet 1 of 2)
Feature
Description of ADE3XXX Operation
Blocks Used Pages
Power Up / Initialize When power is first applied, the ADE3XXX is asynchronously reset from a pin. GLBL
13
The MCU typically programs the ADE3XXX with a number of default values and SMEAS
32
sets up the ADE3XXX to identify activity on any of the input pins. All
DVI
22
preconfigured values and RAMs, such as DVI settings, line-lock PLL settings, LLK
19
video input modes (YUV), OSD characters, LCD timing values (output
ADC
18
sequencer), scale kernels, gamma curves, sRGB color warp, APC dithering, YUV
29
output pin configuration (OMUX), etc. can be preloaded into the ADE3XXX. The OSD
66
typical end state is that the ADE3XXX is initialized into a low power mode, ready SCALER
49
to turn active once the power button is pressed.
GAMMA
74
SRGB
64
OUTSEQ
52
TCON
55
APC
74
OMUX
75
Activity Detect
When the monitor has been powered on, the inputs can be monitored for active SMEAS
32
video sources. Based on the activity monitors, the MCU chooses an input or
power down state.
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