CRT Display Synchronization Deflection Circuit
Overview
The LA7850 is a sync deflection circuit IC dedicated to CRT display use. It can be connected to the LA7832, 7833, 7837, 7838 for vertical output use to form a sync deflection circuit that meets every requirement for CRT display use.
Features
• The horizontal oscillation frequency can be adjusted stably from 15kHz to 100kHz.
• The horizontal display can be shifted right/left.
• The horizontal/vertical sync input can be used intact regardless of the difference in pulse polarity and pulse width.
• The AFC feedback sawtooth wave can be obtained by simply applying a flyback pulse to the IC as a trigger
pulse.
• Any duty of the horizontal pulse can be set.
• Good vertical linearity because DC bias at vertical output stage is subject to sampling control within retrace time.
On-Chip Functions
[Horizontal Block]
• AFC
• Horizontal OSC
• X-ray protector
• Horizontal phase shift
• AFC sawtooth wave generator
• Horizontal pulse duty setting
[Vertical Block]
• Vertical OSC
• Vertical sawtooth wave generator
• Sampling type DC voltage control
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LA7851 Sanyo Semiconductor 三洋 | 当前型号 | 当前型号 |
TDA8215B 意法半导体 | 功能相似 | LA7851和TDA8215B的区别 |
NTE7086 NTE Electronics | 功能相似 | LA7851和NTE7086的区别 |
NTE7062 NTE Electronics | 功能相似 | LA7851和NTE7062的区别 |