EL1881CN

The EL1881CN is a low-power video sync separator from EL, manufactured using a high-performance analog CMOS process. This device is designed to extract sync timing information from both standard and non-standard video inputs. It provides essential outputs such as composite sync, vertical sync, burst/back porch timing, and odd/even field detection.

The sync separator features a fixed 70mV sync tip slicing, enabling sync edge detection for video input levels between 0.5VP-P and -2VP-P. A single external resistor allows for timing adjustments to accommodate various video standards. The composite sync output follows video in sync pulses, and a vertical sync pulse is generated on the rising edge of the first vertical serration. For non-standard vertical inputs, a default vertical pulse is output if the vertical signal remains low beyond a specified delay.

With a propagation delay of 30 ns and a low supply current of 1.2 mA, the EL1881CN is suitable for power-sensitive applications. It operates within a temperature range of -40°C to 85°C and is available in an 8-lead PDIP package. The EL1881CN is plug-in compatible with the industry-standard LM1881 and can be substituted in 5V applications requiring lower supply current.