NXP Semiconductors TDA4856
The TDA4856 is a high performance and efficient solution for autosync monitors. The TDA4856 provides synchronization processing, horizontal and vertical synchronization with full autosync capability and very short settling times after mode changes. The IC generates the drive waveforms for DC-coupled vertical boosters such as the TDA486x and TDA835x.FEATURES
Concept features● Full horizontal plus vertical autosync capability
● Extended horizontal frequency range from 15 to 130 kHz
● Comprehensive set of I2C-bus driven geometry adjustments and functions, including standby mode
● Very good vertical linearity
● Moire cancellation
● Start-up and switch-off sequence for safe operation of all power components
● X-ray protection
● Power dip recognition
● Flexible switched mode B+ supply function block for feedback and feed forward converter
● Internally stabilized voltage reference
● Drive signal for focus amplifiers with combined horizontal and vertical parabola waveforms
● DC controllable inputs for Extremely High Tension (EHT) compensation
● SDIP32 package. Synchronization
● Can handle all sync signals (horizontal, vertical, composite and sync-on-video)
● Output for video clamping (leading/trailing edge selectable by the I2C-bus), vertical blanking and protection blanking
● Output for fast unlock status of horizontal synchronization and blanking on grid 1 of picture tube.