TDA4858

Economy Autosync Deflection Controller (EASDC); Concept features\n• Full Horizontal (H) plus Vertical (V) autosync capability\n• Completely DC controllable for analog and digital concepts\n• Excellent geometry control functions [e.g. automatic correction of East-West (EW) parabola during adjustment of vertical size and vertical shift]\n• Flexible Switched Mode Power Supply (SMPS) function block for feedback and feed forward converters\n• X-ray protection\n• Start-up and switch-off sequence for safe operation of all power components\n• Very good vertical linearity\n• Internal supply voltage stabilization\n• SDIP32 package.Synchronization inputs\n• Can handle all sync signals (horizontal, vertical, composite and sync-on-video)\n• Combined output for video clamping, vertical blanking and protection blanking\n• Start of video clamping pulses externally selectable.Horizontal section\n• Extremely low jitter\n• Frequency locked loop for smooth catching of line frequency\n• Simple frequency preset of fmin and fmax by external resistors\n• DC controllable wide range linear picture position\n• Soft start for horizontal driver.Vertical section\n• Vertical amplitude independent of frequency\n• DC controllable picture height, picture position and S-correction\n• Differential current outputs for DC coupling to vertical booster.EW section\n• Output for DC adjustable EW parabola\n• DC controllable picture width and trapezium correction\n• Optional tracking of EW parabola with line frequency\n• Prepared for additional DC controls of vertical linearity, EW-corner, EW pin balance, EW parallelogram, vertical focus by extended application.;

GENERAL DESCRIPTION\nThe TDA4858 is a high performance and efficient solution for autosync monitors. The concept is fully DC controllable and can be used in applications with a microcontroller and stand-alone in rock bottom solutions.\nThe TDA4858 provides synchronization processing, H + V synchronization with full autosync capability, and very short settling times after mode changes. External power components are given a great deal of protection. The IC generates the drive waveforms for DC-coupled vertical boosters such as TDA486x and TDA8351.\nThe TDA4858 provides extended functions e.g. as a flexible SMPS block and an extensive set of geometry control facilities, providing excellent picture quality.\nTogether with the Philips TDA488x video processor family a very advanced system solution is offered.FEATURES\nConcept features\n• Full Horizontal (H) plus Vertical (V) autosync capability\n• Completely DC controllable for analog and digital concepts\n• Excellent geometry control functions [e.g. automatic correction of East-West (EW) parabola during adjustment of vertical size and vertical shift]\n• Flexible Switched Mode Power Supply (SMPS) function block for feedback and feed forward converters\n• X-ray protection\n• Start-up and switch-off sequence for safe operation of all power components\n• Very good vertical linearity\n• Internal supply voltage stabilization\n• SDIP32 package.Synchronization inputs\n• Can handle all sync signals (horizontal, vertical, composite and sync-on-video)\n• Combined output for video clamping, vertical blanking and protection blanking\n• Start of video clamping pulses externally selectable.Horizontal section\n• Extremely low jitter\n• Frequency locked loop for smooth catching of line frequency\n• Simple frequency preset of fmin and fmax by external resistors\n• DC controllable wide range linear picture position\n• Soft start for horizontal driver.Vertical section\n• Vertical amplitude independent of frequency\n• DC controllable picture height, picture position and S-correction\n• Differential current outputs for DC coupling to vertical booster.EW section\n• Output for DC adjustable EW parabola\n• DC controllable picture width and trapezium correction\n• Optional tracking of EW parabola with line frequency\n• Prepared for additional DC controls of vertical linearity, EW-corner, EW pin balance, EW parallelogram, vertical focus by extended application.

恩XP

TDA4858

Economy Autosync Deflection Controller (EASDC)

PHI

4858

SWAGE/FORCEFITSTANDOFFS

[KEYSTONE] SWAGE/FORCEFITSTANDOFFS

4858

SWAGE/FORCEFITSTANDOFFS

4858NG

N-Channel20-V(D-S)175CMOSFET

XF4858-VO

TORODIALINDUCTOR