LA7567N

Ordering number : EN5765 Monolithic Linear IC LA7567N, 7567NM TV and VCR VIF/SIF IF Signal-Processing Circuit with PAL/NTSC Multi-Format Audio Support Overview The LA7567N and LA7567NM are PAL/NTSC multiformat audio VIF/SIF IF ICs that adopt a semiadjustment-free system. The VIF block adopts a technique that makes AFT adjustment unnecessary by adjusting the VCO, thus simplifying the adjustment steps in the manufacturing process. PLL detection is adopted in the FM detector to support multi-format audio detection. A built-in SIF converter is included to simplify multi-format system designs. A 5-V power-supply voltage is used to match that used in most multimedia systems. In addition, these ICs also include a buzz canceller to suppress Nyquist buzz and provide high audio quality. Package Dimensions unit: mm 3067-DIP24S [LA7567N] Functions [VIF] VIF amplifier PLL detector BNC RF AGC EQ amplifier AFT IF AGC Buzz canceller [First SIF] First SIF First SIF detector AGC [SIF] Multi-format SIF converter Limiter amplifier PLL FM detector SANYO: DIP24S unit: mm 3112-MFP24S [LA7567NM] Features Both AFT and SIF inductors built in, thus making adjustment of external inductance unnecessary. A PAL/NTSC multi-format audio system can be constructed easily. Built-in buzz canceller for excellent audio performance. VCC = 5 V, low power dissipation (250 mW) Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Circuit voltage Symbol...