NTE1539 Datasheet, PDF (1/3 Pages) NTE Electronics – Integrated Circuit Color TV Sync Deflection Circuit

NTE1539
Integrated Circuit
Color TV Sync Deflection Circuit
Description:
The NTE1539 is a multifunctional integrated circuit which is based on the internal circuit of the
NTE1538. It incorporates various functions required for synchronization and deflection circuits of col-
or television sets and especially aims at increasing the detections accuracy of the X–ray protection
circuit. The ground pins for horizontal and vertical are provided separately to enable the easy layout
of the printed circuit board.
The NTE1539 differs from the NTE1538 in the following points:
D The output circuit of synchronizing separation is emitter follower type
D The X–ray protection circuit is differential dual inouts thyristor system
D The ground pins for horizontal and vertical are provided separately.
Functions:
D Synchro Separator
D Horizontal AFC
D Vertical Driver
D Vertical Blanking Pulse Making
D Horizontal Oscillator
D Vertical Oscillator
D X–Ray Protector
Features:
D Multifunctional and Small–Size
D Minimum Number of Parts Required
D Horizontal and Vertical Oscillators being Stable to Variation of Ambient Temperature and Supply
Voltage Owing to Small Warming–Up Drift.
D Small Variation of Horizontal Oscillation Frequency
D Good Linearity and Interface Owing to DC Bias at Vertical Output Stage being Sampling
Controlled within Retrace Time.
D Vertical Blanking Pulse Width being Freely Set Up According to Peripheral Parts.
D High Detection Accuracy of X–Ray Protection Circuit.