The NJM2570A is a video amplifier with LPF in Y and C systems, adjustable LPF characteristics using external resistors, and optimization of the TV monitor system with the output of a 75Ω driver. In addition, the internal DC interface of the S terminal makes it possible to distinguish the screen aspect ratio of the TV. NJM2570A includes a power-saving circuit, making it suitable for portable video testing equipment.
basic characteristics of the circuit;
1 The operating voltage range is; 4.5-5,5V;
2 Input Y and C (0.5pp)
3 Internal LPF (0dB at 4MHz (IREF=33KΩ), -35dB (IREF=33kΩ) at 10MHz, 0dBZ (IREF=22kΩ) at 6MHz, -40dB at 16MHz (IREF=22kΩ:
4 Internal DG interface for identifying screen aspect ratio;
516-pin SSOP
6 bipolar technology