LINEAR INTEGRATED CIRCUIT PREAMPLIFIER WITH ALC FOR CASSETTE RECORDERS EXCELLENT VERSATILITY in USE (Vs from 4 to 20V) HIGH OPEN LOOP GAIN LOW DISTORTION LOW NOISE LARGE AUTOMATIC LEVEL CONTROL RANGE GOOD SUPPLY RIPPLE REJECTION STEREO MATCHING BETTER THAN 3 dB The TDA 1054M is a monolithic integrated circuit in a 16-lead dual in-line plastic package. The functiens incorporated are: Low noise preamplifier - Automati.