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TDA4855

Features: Concept features·Full Horizontal (H) plus Vertical (V) autosync capability·Completely DC controllable for analog and digital oncepts·Excellent geometry control functions (e.g. automatic orrection of East-West (EW) parabola during djustment of ertical size and vertical shift)·Flexible Swi...

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SeekIC No. : 004516388 Detail

TDA4855: Features: Concept features·Full Horizontal (H) plus Vertical (V) autosync capability·Completely DC controllable for analog and digital oncepts·Excellent geometry control functions (e.g. automatic or...

TDA4855 Data Sheet

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Part Number:
TDA4855
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/1/12

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Product Details

Description



Features:

Concept features
·Full Horizontal (H) plus Vertical (V) autosync capability
·Completely DC controllable for analog and digital oncepts
·Excellent geometry control functions (e.g. automatic orrection of East-West (EW) parabola during djustment of  ertical size and vertical shift)
·Flexible Switched Mode Power Supply (SMPS) function lock for feedback and feed forward converters
·Horizontal focus parabola with amplitude control
·X-ray protection
·Start-up and switch-off sequence for safe operation of ll power components
·Very good vertical linearity
·Internal supply voltage stabilization
·SDIP32 package. ynchronization inputs
·Can handle all sync signals (Horizontal, Vertical, omposite and Sync-on-video)
·Combined output for video clamping, vertical blanking nd protection blanking.
Horizontal section
·Extremely low jitter
·Frequency locked loop for smooth catching of line requency
·Simple frequency preset of fmaxand fmin   by external esistors
·DC controllable wide range linear picture position
·Soft start for horizontal driver.
Vertical section
·Vertical amplitude independent of frequency
·Automatic correction of picture height for VGA350 and GA400 modes
·DC controllable picture height, picture position and -correction
·Differential current outputs for DC coupling to vertical ooster. W section
·Output for DC adjustable EW parabola with smoothed op
·DC controllable picture width and trapezium correction
·Optional tracking of EW parabola with line frequency
·Prepared for additional DC controls of vertical linearity, W-corner, EW pin balance, EW parallelogram, vertical ocus by extended application.


Pinout

Connection Diagram


Description

The TDA4855 is a high performance and efficient solution or autosync monitors. The concept is fully DC controllable nd n be used in applications with a microcontroller and tand-alone in rock bottom solutions.

The TDA4855 provides synchronization processing, H+V ynchronization with full autosync capability, and very hort ttling times after mode changes. External power omponents are given a great deal of protection. The IC enerates the drive s for DC-coupled vertical oosters such as TDA486X and TDA8351.

The TDA4855 provides extended functions e.g. as aflexible SMPS block and an extensive set of geometry ontrol acilities, providing excellent picture quality.

Together with the Philips TDA488X video processor family  very advanced system solution is offered.




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