MC1391P, TV Horizontal Processor, 16-Pin PDIP

The MC1391P is a TV Horizontal Processor IC designed for use in television receivers. It integrates the essential oscillator, phase detector, and pre-driver sections needed for horizontal automatic phase control (APC) loops in TV circuits. With a low static phase error, adjustable DC loop gain, and positive flyback input, this IC ensures efficient synchronization and processing of horizontal signals. Its low thermal drift and stable operation make it an excellent choice for TV designs requiring precise frequency control.

• Integrated Horizontal Processing Functions – Combines oscillator, phase detector, and pre-driver for television applications.
• Internal Shunt Regulator – Provides stable voltage regulation within the circuit.
• Preset Hold Control Capability – Maintains specific operational states for improved stability.
• ±300 Hz Typical Pull-In Range – Ensures precise frequency synchronization.
• Low Thermal Frequency Drift – Reduces frequency variations due to temperature changes.
• Variable Output Duty Cycle – Supports both tube and transistor-driven circuits.