Description: The NTE71115 is a monolithic integrated Circuit in a 18–Lead DIP type package designed for use in color television receivers.
Features: ● Positive Video Input: Capacitively Coupled (Source Impedance < 200Ω) ● Adaptive Sync Separator: Slicing Level at 50% of Sync Amplitude ● Internal Vertical Pulse Separator w/Double Slope Integrator ● Output Stage for Vertical Sync Pulse or Composite Sync Depending on the Load; Both are Switched OFF at Muting ● φ1 Phase Control Between Horizontal Sync and Oscillator ● Coincidence Detector φ3 for Automatic Time Constant Switching; Overruled by the VCR Switch ● Time Constant Switch Between Two External Time Constants for Loop Gain; Both Controlled by the Coincidence Detector φ3 ● φ1 Gating Pulse Controlled by Coincidence Detector φ3 ● Mute Circuit Depending on TV Transmitter Identification ● φ2 Phase Control Between Line Flyback and Oscillator; the Slicing Levels for φ2 Control and Horizontal Blanking can be set Separately ● Burst Keying and Horizontal Blanking Pulse Generation, in Combination with Clamping of the Vertical Blanking Pulse (Three–Level Sandcastle) ● Horizontal Drive Output with Constant Duty Cycle Inhibited by the Protection Circuit or the Supply Voltage Sensor ● Detector for Too Low Supply Voltage ● Protection Circuit for Switching Off the Horizontal Drive Output Continuously if the Input Voltage is Below 4V or Higher than 8V ● Line Flyback Control Causing the Horizontal Blanking Level at the Sandcastle Output Continuously in Case of a Missing Flyback Pulse ● Spot Suppressor Controlled by the Line Flyback Control
Applications: ● Television Receivers ● Video Receivers
Description: The NTE849 is an integrated Circuit in a 14–Lead DIP type package designed for use in TV Horizontal/ vetical countdown digital sync systems. In some video playback units, there are incorrect frequency relationships between Horizontal and field frequencies. Automatic forced asynchronous mode eliminates jitter when equalizer pulses are correct, but these incorrect frequency relationships exist.
Features: ● Automatic Forced Asynchronous Mode to Remove Jitter ● Improved Low Voltage Start–Up Operation ● Lower Zero–State Horizontal–Drive Pulse Output ● Improved Symmetry for Horizontal–Drive Output ● Improved Automatic Standard Operation ● Noise Detector ● Handles Standard NTSC and Non–Standard Signals ● Automatic Mode Recognition ● Clock Input ● Vertical Ramp (Sawtooth) Generator ● Vertical Amplifier ● Vertical Blanking Generator ● Horizontal Drive Pulse Output ● Ratio–Voltage Regulator ● Inherent Interlace for NTSC Signals ● Vertical–Hold Control Eliminated ● Supply Voltage Range: 10.8V to 13.2V ● Rapid Pull–In ● Co–Channel Sync Lockout for NTSC Signals ● I2L Logic