TDA4821P Description
The TDA4821P performs the ‘autosize’.
TDA4821P Key Features
- Measuring of six horizontal and four vertical timing parameters as follows
- Horizontal: sync width, sync period, video start, video end and horizontal flyback pulse start and end
- Vertical: sync width, sync period, first line of video active and last line of video active
- Detection of H-sync and V-sync polarity
- I2C-bus interface (maximum clock frequency 400 kHz) for read-out of data and write data of the internal clock multiplier
- Flexible digital clock input with built-in and (via I2C-bus) adjustable clock multiplier; internal clock is 48 MHz (typi
- Horizontal measurements are expressed in number of clock pulses; precision is approximately 20 ns at 48 MHz and can be i
- Vertical measurements are expressed in number of lines
- Internal buffer keep I2C-bus registers stable between the V-sync pulses, allowing for asynchronous read-out. GENERAL DES
- A more user friendly adjustment for any undefined video mode by simply pressing a button