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