4-HEAD PLAYBACK AND RECORD AMPLIFIER FOR VCR

■ ONE 5V POWER SUPPLY

■ PLAYBACK/RECORD MODE SELECTION

THROUGH A LOGIC INPUT

■ SO20 PACKAGE

■ NO ADJUSTMENT FOR LUMINANCE RECORDING

PLAYBACK MODE

■ LOW NOISE AND WIDE BAND AMPLIFIERS

FOR 4 HEADS

■ AUTOMATIC OFFSET CANCELLATION BETWEEN THE 2 SELECTED HEADS

■ ONE PLAYBACK OUTPUT

■ ONE OUTPUT FOR AUTOMATIC VIDEO

TRACKING

■ SP/LP ENVELOPE COMPARATOR

■ SHORT-CIRCUIT SWITCHES ON UNUSED

HEADS

RECORD MODE

■ RECORD AGC AMPLIFIER SAMPLED BY

SYNCHRO SIGNAL

■ RECORDING SIGNAL LEVEL ADJUSTABLE

BY EXTERNAL RESISTOR

■ SHORT-CIRCUIT SWITCHES ON UNUSED

HEADS