TDA2593

SYNCHRO AND HORIZONTAL DEFLECTION

CONTROL FOR COLOR TV SET

September 1993

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SUPPLY VOLTAGE

OUTPUT STAGE SUPPLY VOLTAGE

OUTPUT PULSE

SELECTION OF OUTPUT PULSE DURATION

DECOUPLING

REFERENCE PULSE (flyback) FOR

THE 2nd PHASE COMPARATOR

SAND CASTLE PULSE

VERTICAL SYNCHRO OUTPUT

GROUND

ADJUSTMENT OF THE CHARGE CURRENT

RAMP OSCILLATOR CAPACITANCE

FIRST PHASE COMPARATOR OUTPUT

TIME CONSTANT SWITCHING

V.C.R. SWITCHING

NOISE SEPARATOR INPUT

SYNCHRO SEPARATOR INPUT

PIN CONNECTIONS

DIP16

(Plastic Package)

ORDER CODE : TDA2593

.

LINE OSCILLATOR (two levels switching)

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PHASE

COMPARISON

BETWEEN

SYN-

CHRO-PULSE AND OSCILLATOR VOLTAGE

Ø 1, ENABLED BY AN INTERNAL PULSE,

(better parasitic immunity)

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PHASE COMPARISON BETWEEN THE FLY-

BACK PULSES AND THE OSCILLATOR VOL-

TAGE Ø 2

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COINCIDENCE DETECTOR PROVIDING A

LARGE HOLD-IN-RANGE

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FILTER

CHARACTERISTICS

AND

GATE

SWITCHING FOR VIDEO RECORDER AP-

PLICATION

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NOISE GATED SYNCHRO SEPARATOR

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FRAME PULSE SEPARATOR

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BLANKING AND SAND CASTLE OUTPUT

PULSES

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HORIZONTAL POWER STAGE PHASE LAG-

GING CIRCUIT

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SWITCHING OF CONTROL OUTPUT PULSE

WIDTH

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SEPARATED SUPPLY VOLTAGE OUTPUT

STAGE

ALLOWING

DIRECT

DRIVE

OF

SCR’S CIRCUIT

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SECURITY CIRCUIT MAKES THE OUTPUT

PULSE SUPPRESSED WHEN LOW SUPPLY

VOLTAGE

DESCRIPTION

The TDA2593 is a circuit intended for the horizontal

deflection of color TV sets, suppliedwith transistors

or SCR’S.

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