CD1031CS Vertical Deflection System (CD1031 DIP IC)
The CD1031CS is a monolithic integrated circuit specifically designed for the vertical deflection system in monochrome and small-sized color television receivers. While often referred to in e-commerce as a "DIP IC," it is technically a 10-pin Single In-line Package (SIP) with a specialized layout. It integrates all the essential blocks of a deflection circuit, including a synchronization circuit, oscillator, ramp generator, and a high-power output amplifier.
In India, this IC is a common replacement part for CRT-based monitors and legacy televisions. It is valued for its ability to handle peak output currents up to 2.0A, making it capable of driving the vertical deflection yoke with high precision and thermal stability.
Key Features
- Complete Deflection Solution: Combines the oscillator, ramp generator, and power output stage in a single package.
- High Output Drive: Supports a peak-to-peak output current of 2.0A, suitable for a variety of yoke sizes.
- Flyback Generator: Features an internal flyback generator to reduce the number of external components needed for high-voltage pulses.
- Stable Oscillator: Built-in synchronization circuitry ensures the vertical frequency remains locked to the video signal.
- Voltage Regulation: Operates reliably across a supply voltage range of 9V to 18V, with a typical operating voltage of 12V.
- Protective Circuitry: Includes internal thermal compensation to maintain excellent characteristics across different temperatures.
Specifications
- IC Type: Vertical Deflection System
- Typical Supply Voltage: 12V
- Operational Voltage Range: 9V to 18V
- Peak-to-Peak Output Current: 2.0A
- Power Dissipation: ~1.5W to 2.15W
- Typical Frequency: 50Hz / 60Hz
- Package Type: SIP-10 (Through-Hole)
- Manufacturer: CHMC / Silicore
Pinout Configuration (10-Pin)
- Pin 1: Vertical Output 1
- Pin 2: Supply Voltage (VCC)
- Pin 3: Bootstrap / Flyback
- Pin 4: Ground (GND)
- Pin 5: Pull-in Range Adjustment (via Ground resistor)
- Pin 6: Vertical Oscillator
- Pin 7: Ramp Generator
- Pin 8: Ground (GND)
- Pin 9: Feedback / Error Amp
- Pin 10: Current Limit / Clamp
