Horizontal and vertical deflection controller
Description
INTEGRATED CIRCUITS
DATA SHEET
TDA4850 Horizontal and vertical deflection controller for VGA/XGA and multi-frequency monitors
Product specification Supersedes data of September 1991 File under Integrated Circuits, IC02 1997 Jun 05
Philips Semiconductors
Product specification
Horizontal and vertical deflection controller for VGA/XGA and multi-frequency monitors
FEATURES • VGA operation fully implemented including alignment-free vertical and E/W amplitude pre-settings • 4th VGA mode easy applicable (XGA, Super VGA) • Multi-frequency operation externally selectable • All adjustments DC-controllable • Alignment-free oscillators • Sync separators for video or horizontal and vertical TTL sync levels regardless of polarity • Horizontal oscillator with PLL1 for sync and PLL2 for flyback • Constant vertical and E/W amplitude in multi-frequency operation • DC-coupling to vertical power amplifier (TDA486X or TDA8351) • Internal supply voltage stabilization with excellent ripple rejection to ensure stable geometrical adjustments.
QUICK REFERENCE DATA SYMBOL VP IP Vi sync supply voltage (pin 1) supply current PARAMETER − MIN.
9.
2 TYP.
12 40 1 120 − 1.
4 − 1.
4 1 − − − − − − 1.
6 − 1.
6 − 60 70 GENERAL DESCRIPTION
TDA4850
The TDA4850 provides economical solutions in VGA/XGA and multi-frequency monitors.
The IC incorporates the complete horizontal and vertical small signal processing.
VGA-dependent mode detection and settings are performed on chip.
In conjunction with TDA486X or TDA8351 (vertical output circuits) both ICs offer an extremely advanced system solution.
MAX.
16 V
UNIT mA V mV V V V V mA mA °C
AC-coupled composite video signal with negative-going sync − (peak-to-peak value; pin 9) sync slicing level DC-coupled TTL-compatible horizontal sync signal (peak value; pin 9) slicing level DC-coupled TTL-compatible vertical sync signal (peak value; pin 10) slicing level − 1.
7 1.
2 1.
7 1.
2 − − 0
Io V Io H Tamb
vertical differential output current (peak-to-peak value; pins 5 ...
Similar Datasheet
