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40hz bass filter CIRCUIT diagram

Contextual Info: ordering number : EN 271 BA Monolithic Linear 1C L A 79 53 Audio Controller for TV Use Overview The LA7953 Audio Controller is a single-chip, linear IC featuring a built-in expansion circuit. The device also features a 4-input /1-output audio switch, an acoustic mute, a LINE-OUT output, and audio control functions for volume,