ADE3800XT View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ADE3800XT
STMicroelectronics
ADE3800XT Datasheet PDF : 138 Pages
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General Description
ADE3800
Table 1: ADE3800 Features (Sheet 2 of 2)
Feature
Description of ADE3800 Operation
Blocks Used Pages
Sync / Timing
Once an input source is selected, all available information on frequencies and SMEAS
36
Measurement
line/pixel counts is measured for the selected source and made available to the
MCU.
Mode Set
Once the MCU has determined the matching video mode or calculated a video GLBL
18
mode using a GTF algorithm, the datapath is programmed to drive the flat
LLK
30
panel. Clock frequencies for the internal memory and datapath are also set at SRT
33
this time.
SMUX
43
SCALER
53
Autotune
When the MCU calls for an autotune, the MCU sets up an iterative loop to
DMEAS
47
search for the best phase, gain, offset, etc. At each step of the loop, the MCU LLK
30
kicks off a test in which the ADE3800 performs extensive statistical analysis of ADC
21
the incoming data stream. The results of the analysis are made available to the SMUX
43
MCU which is responsible for the optimization algorithm.
SRT
33
Digital Contrast / In response to user OSD control, the MCU can program single 8-bit registers SRGB
68
Brightness
that set brightness and contrast for each color channel independently.
White Point Control In response to user OSD control, the MCU can program three 8-bit registers SRGB
68
that set the white point for the output.
GAMMA
Adjustment
The MCU can program the gamma RAMs to implement 10-bit accurate color GAMMA
71
transformations to match the panel color characteristics.
sRGB Control
Allows simple, intuitive color control for parametric gamma correction and 3D SRGB
68
color cube warping.
Pattern Generation For production testing, the ADE3800 can be programmed by the MCU to output PGEN
59
a wide set of test patterns.
Flicker Reduction For Smart Panel applications, the MCU can set up the flicker detection block to FLICKER
88
report any correlation with the polarity inversion signal. The MCU can then
TCON
102
change the polarity inversion to a non-correlating pattern to eliminate flicker.
Backlight Control The ADE3800 provides two PWM outputs for direct control of the power
PWM
119
components in a typical backlight. The MCU sets up the registers and enables
the function.
Low Power State To enter a low power state, the MCU can gate off most of the clocks and put the GLBL
18
analog blocks into a low power standby state.
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