The LM1880 is a no‑holds vertical and horizontal processing IC that eliminates traditional hold controls in TV receivers. It uses a precision 32× horizontal frequency VCO with a ceramic resonator and provides vertical sync, chroma burst gate and internal voltage regulation.
The document includes absolute maximum ratings, electrical characteristics, typical application schematics, external component values and layout recommendations to ensure stable operation and low phase jitter.
| Regulated Voltage (Pin 9) | 8.2 V – 9.2 V |
|---|---|
| VCO Reference Voltage (Pin 3) | 5 V |
| Horizontal Output Duty Cycle | 50 % |
| Horizontal Pull‑in Range | +600 Hz |
| Vertical Output Retrace Time | 600 µs |
| Burst Gate Width | 12 µs |
The absolute maximum input voltage for pins 10 and 14 is 5 Vp‑p.