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TDA4850 Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. TDA4850
Description  Horizontal and vertical deflection controller for VGA/XGA and multi-frequency monitors
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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 2 page
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1997 Jun 05
2
Philips Semiconductors
Product specification
Horizontal and vertical deflection controller
for VGA/XGA and multi-frequency monitors
TDA4850
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.
GENERAL DESCRIPTION
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.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
VP
supply voltage (pin 1)
9.2
12
16
V
IP
supply current
40
mA
Vi sync
AC-coupled composite video signal with negative-going sync
(peak-to-peak value; pin 9)
1
V
sync slicing level
120
mV
DC-coupled TTL-compatible horizontal sync signal
(peak value; pin 9)
1.7
−−
V
slicing level
1.2
1.4
1.6
V
DC-coupled TTL-compatible vertical sync signal
(peak value; pin 10)
1.7
−−
V
slicing level
1.2
1.4
1.6
V
IoV
vertical differential output current (peak-to-peak value;
pins 5 and 6)
1
mA
IoH
horizontal sink output current on pin 3
−−
60
mA
Tamb
operating ambient temperature
0
70
°C
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA4850
DIP20
plastic dual in-line package; 20 leads (300 mil)
SOT146-1




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