NTE7115
Integrated Circuit
Color TV Horizontal Combination Circuit
Description:
The NTE71115 is a monolithic integrated circuit in a 18鈥揕ead DIP type package designed for use in
color television receivers.
Features:
D
Positive Video Input: Capacitively Coupled (Source Impedance < 200鈩?
D
Adaptive Sync Separator: Slicing Level at 50% of Sync Amplitude
D
Internal Vertical Pulse Separator
w
/Double Slope Integrator
D
Output Stage for Vertical Sync Pulse or Composite Sync Depending on the Load; Both are
Switched OFF at Muting
D
枚
1
Phase Control Between Horizontal Sync and Oscillator
D
Coincidence Detector
枚
3
for Automatic Time Constant Switching; Overruled by the VCR Switch
D
Time Constant Switch Between Two External Time Constants for Loop Gain; Both Controlled
by the Coincidence Detector
枚
3
D
枚
1
Gating Pulse Controlled by Coincidence Detector
枚
3
D
Mute Circuit Depending on TV Transmitter Identification
D
枚
2
Phase Control Between Line Flyback and Oscillator; the Slicing Levels for
枚
2
Control and
Horizontal Blanking can be set Separately
D
Burst Keying and Horizontal Blanking Pulse Generation, in Combination with Clamping of the
Vertical Blanking Pulse (Three鈥揕evel Sandcastle)
D
Horizontal Drive Output with Constant Duty Cycle Inhibited by the Protection Circuit or the
Supply Voltage Sensor
D
Detector for Too Low Supply Voltage
D
Protection Circuit for Switching Off the Horizontal Drive Output Continuously if the Input Voltage
is Below 4V or Higher than 8V
D
Line Flyback Control Causing the Horizontal Blanking Level at the Sandcastle Output Continuously
in Case of a Missing Flyback Pulse
D
Spot Suppressor Controlled by the Line Flyback Control
Applications:
D
Television Receivers
D
Video Receivers