13
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Integrated chroma band-pass filter with switchable centre frequency
•
Only one reference (12 MHz) crystal required for the microcontroller, Teletext- and the
colour decoder
•
PAL/NTSC or multi-standard colour decoder with automatic search system
•
Internal base-band delay line
•
RGB control circuit with ‘Continuous Cathode Calibration’, white point and black level
offset adjustment so that the colour temperature of the dark and the light parts of the
screen can be chosen independently.
•
Linear RGB or YUV input with fast blanking for external RGB/YUV sources. The
Text/OSD signals are internally supplied from the microcontroller/Teletext decoder
•
Contrast reduction possibility during mixed-mode of OSD and Text signals
•
Horizontal synchronization with two control loops and alignment-free horizontal
oscillator
•
Vertical count-down circuit
•
Vertical driver optimized for DC-coupled vertical output stages
•
Horizontal and vertical geometry processing
•
Horizontal and vertical zoom function for 16 : 9 applications
•
Horizontal parallelogram and bow correction for large screen picture tubes
Special Features of micro Controller
•
80C51 microcontroller core standard instruction set and timing
•
1 microsecond machine cycle
•
32 - 128Kx8-bit late programmed ROM
•
3 - 12Kx8-bit Auxiliary RAM (shared with Display and Acquisition)
•
Auxiliary RAM page pointer
•
16-bit Data pointer
•
IDLE and Power Down (PD) mode
•
14 bits PWM for Voltage Synthesis Tuning
•
8-bit
A/D
converter
•
4 pins which can be programmed as general I/O pin, ADC input or PWM (6-bit) output
•
Text memory for 1 or 10 pages
