Monolithic Linear IC For TV · VTR PAL / NTSC Multi-sound correspondence VIF / SIF IF signal processing circuit
LA7567B, 7567BM is a VIF / SIF IC of PAL / NTSC multi-sound correspondence that employs a semi-free adjustment method. The VIF part, VCO tone Adopts a method of AFT adjustment is not required by an integer, thus simplifying the adjustment can be achieved. To FM detection, the voice adopted a PLL detection method It aimed at the correspondence of a multi-detection. Also it has a built-in SIF converter, multi-system compatible design becomes easy. Power supply voltage, MaRuchi is a media-5V. In addition to these, a built-in buzz canceller to suppress Nyquist buzz, have also realized a higher sound quality.
From LA7567N / NM, video S / N, audio S / N, have improved the video amplitude.
• AFT, is a non-adjusted without the coil of the SIF.
• The PAL / NTSC multi-sound system can be easily configured.
• Since the buzz canceller has a built-in voice of the performance is good.
· VCC = 5V low power consumption 250mW