(China (Mainland))
Product Summary
The la7567nm-trm is a PAL/NTSC multiformat audio VIF/SIF IF IC that adopt a semiadjustment- free system. The la7567nm-trm 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, the la7567nm-trm also includes a buzz canceller to suppress Nyquist buzz and provide high audio quality.
Parametrics
la7567nm-trm absolute maximum ratings: (1)Maximum supply voltage VCC max: 6 V; (2)Circuit voltage V13, V17 VCC V I6: 3 mA; (3)Circuit current I10: 10 mA, I24: 2 mA; (4)TA 2 50°C, Independent IC [LA7567NM]: 420 mW; (5)Allowable power dissipation Pd max : Mounted on a printed circuit board: 720 mW; (6)TA 2 70°C, Independent IC [LA7567N]: 500 mW; (7)Operating temperature Topr: –20 to +70 °C; (8)Storage temperature Tstg: –55 to +150 °C.
Features
la7567nm-trm features: (1)Both AFT and SIF inductors built in, thus making adjustment of external inductance unnecessary; (2)A PAL/NTSC multi-format audio system can be constructed easily; (3)Built-in buzz canceller for excellent audio performance; (4)VCC = 5 V, low power dissipation (250 mW).
Diagrams
