NXP Semiconductors TDA4780
The TDA4780 is a monolithic integrated circuit with a luminance and a colour difference interface for video processing in TV receivers. Its primary function is to process the luminance and colour difference signals from a colour decoder which is equipped e.g. with the multistandard decoder TDA4655 or TDA9160 plus delay line TDA4661 or TDA4665 and the Picture Signal Improvement (PSI) IC TDA467X or from a feature module.| Part No. | TDA4780 |
|---|---|
| Datasheet | TDA4780 Download |
| Manufacturer |  NXP Semiconductors |
| Description | RGB video processor |
| Buy | Stock & Price |
FEATURES
● Gamma adjust● Dynamic black control (adaptive black)
● All input signals clamped on black-levels
● Automatic cut-off control, alternative: output clamping on fixed levels
● Three adjustable reference voltage levels via I2C-bus for automatic cut-off control
● Luminance/colour difference interface
● Two luminance input levels allowed
● Two RGB interfaces controlled by either fast switches or by I2C-bus
● Two peak drive limiters, selection via
● Blue stretch, selection via I2C-bus
● Luminance output for scan velocity modulation (SCAVEM)
● Extra luminance output; same pin can be used as hue control output e.g. for the TDA4650 and TDA4655
● Non standard operations like 50 Hz/32 kHz are also possible
● Either 2 or 3 level sandcastle pulse applicable
● High bandwidth for 32 kHz application
● White point adjusts via I2C-bus
● Average beam current and improved peak drive limiting
● Two switch-on delays to prevent discoloration during start-up
● All functions and features programmable via I2C-bus
● PAL/SECAM or NTSC matrix selection.
