The TDA3571B is a monolithic integrated circuit for use in color television receivers with switched mode-driven or self-regulating horizontal time-base circuits. It is designed in combination with the TDA2581 to operate as a matched pair. When supplied with a composite video signal the TDA3571B delivers drive pulses for the TDA2581 and sync pulses for the vertical deflection. The circuit is optimized for a horizontal and vertical frequency ratio of 625.
