DESCRIPTION
The M51132 is a VCA (Voltage Controlled Amplifier) IC developed as an electronic volume control for audio-visual equipment. The IC is used to process small analog signals at the stage before power amplifier. Right/left independent volume control or right/left simultaneous volume control can be selected by DC voltages. Its built-in pass through function, in combination with an ALC amplifier, offers the capability of automatic level control.
FEATURES
■Two control modes can be selected.
（Left/rieht independent volume control mode or left/right simultaneous volume +balance control mode）.
■Pass throueh switch is included to output the input signal as it is，irrespective of the volume/balance control voltages.
■Shock noise reduction oin is orovided to reduce pass through switch on/off shock noise.
■Builtin reference supoly voltage circuit…… output current 10mA(typ)
■Maximum input…3.4Vrms(typ) (f=1kHz, THD=1%)
■Low distortion……0.005%(typ)
■Good channel separation……102dB(typ) (f=1kHz, Vo=2Vms, IHF-A)
(Picture: Pinout)
