Details, datasheet, quote on part number: MC1391
PartMC1391
Category
Description
CompanyN.A.
DatasheetDownload MC1391 datasheet
Cross ref.Similar parts: UA1391PC
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Features, Applications

The MC1391 provides low­level horizontal sections including phase detector, oscillator and pre­driver. This device was designed for use in all types of television receivers. Internal Shunt Regulator

Preset Hold Control Capability ±300 Hz Typical Pull­In Linear Balanced Phase Detector Variable Output Duty Cycle for Driving Tube or Transistor Low Thermal Frequency Drift Small Static Phase Error Adjustable DC Loop Gain Positive Flyback Inputs

Device MC1391P Operating Temperature Range to +70°C Package Plastic DIP

This circuit has an oscillator pull­in range of ±300 Hz, a noise bandwidth of 320 Hz, and a damping factor of 0.8.

Rating Supply Current Output Voltage Output Current Sync Input Voltage (Pin 3) Flyback Input Voltage (Pin 4) Power Dissipation (Package Limitation) Plastic Package Derate above = +25°C Operating Temperature Range (Ambient) Storage Temperature Range Value to +150 Unit mAdc Vdc mAdc Vpp mW mW/°C °C

ELECTRICAL CHARACTERISTICS (TA = +25°C, unless otherwise noted. See Test Circuit of Figure 2, all switches in position 1.)

Characteristics Regulated Voltage (Pin 6) Supply Current (Pin 6) Collector­Emitter Saturation Voltage (Output Transistor Q1 in Figure 6) (IC = 20 mA, Pin 1 ) Vdc Voltage (Pin 4) Oscillator Pull­in Range (Adjust RH in Figure 2) Oscillator Hold­in Range (Adjust RH in Figure 2) Static Phase Error = 300 Hz) Free­running Frequency Supply Dependance (S1 in position 2) Phase Detector Leakage (Pin 5) (All switches in position 2) Sync Input Voltage (Pin 3) Sawtooth Input Voltage (Pin 4) Min Typ Max Hz/Vdc 5.0 3.0 Vpp Vdc Hz µs Unit Vdc mAdc Vdc

1.0k VM VCC +30V (See Figure 2.0k 7 Output Pulse S3 S2 Pulse Generator Sync Pulse V, 5.0 µs, 15.750 Hz

Figure 4. Frequency Drift versus Warm­Up Time

Pre­Driver Oscillator Timing 7 Oscillator VCC Regulator 2.6k Q6 Mark­Space Ratio 8 Output 240 2 Ground Q12 R20


 

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