TDA4857PS NXP Semiconductors, TDA4857PS Datasheet - Page 2

• Manufacturer Part Number: TDA4857PS
• Manufacturer: NXP Semiconductors

Specifications of TDA4857PS

• Lead Free Status / Rohs Status: Not Compliant

Philips Semiconductors
FEATURES
Concept features
Synchronization
Horizontal section
Vertical section
2001 Apr 11
Full horizontal plus vertical autosync capability
Extended horizontal frequency range from
15 to 130 kHz
Comprehensive set of I
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
Flexible switched mode B+ supply function block for
feedback and feed forward converter
Internally stabilized voltage reference
Drive signal for focus amplifier with vertical parabola
waveforms
DC controllable inputs for Extremely High Tension
(EHT) compensation
SDIP32 package.
Can handle all sync signals (horizontal, vertical,
composite and sync-on-video)
Output for video clamping (leading/trailing edge
selectable by I
blanking
Output for fast unlock status of horizontal
synchronization and blanking on grid 1 of picture tube.
I
pin unbalance and parallelogram correction via
horizontal phase
Frequency-locked loop for smooth catching of horizontal
frequency
Simple frequency preset of f
resistors
Low jitter
Soft start for horizontal and B+ control drive signals.
I
position, linearity (S-correction) and linearity balance
I
PC monitors
2
2
2
C-bus controllable wide range linear picture position,
C-bus controllable vertical picture size, picture
C-bus autosync deflection controller for
2
C-bus), vertical blanking and protection
2
C-bus driven geometry
min
and f
max
by external
2
East-West (EW) section
Focus section
GENERAL DESCRIPTION
The TDA4857PS is a high performance and efficient
solution for autosync monitors. All functions are
controllable by the I
The TDA4857PS provides synchronization processing,
horizontal and vertical 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 the TDA486x
and TDA835x.
The TDA4857PS provides extended functions e.g. as a
flexible B+ control, an extensive set of geometry control
facilities and an output for vertical focus signals.
Together with the I
processor family, a very advanced system solution is
offered.
Output for I
parabola (for pin unbalance and parallelogram)
Vertical picture size independent of frequency
Differential current outputs for DC coupling to vertical
booster
50 to 160 Hz vertical autosync range.
I
horizontal size, corner and trapezium correction
Optional tracking of EW drive waveform with line
frequency selectable by I
I
Vertical parabola is independent of frequency and tracks
with vertical adjustments.
2
2
C-bus controllable output for horizontal pincushion,
C-bus controllable output for vertical parabola
2
C-bus controllable vertical sawtooth and
2
2
C-bus driven Philips TDA488x video
C-bus.
2
C-bus.
Product specification
TDA4857PS