M51132FP

M51132L/FP 2ch Electronic VolumeBalance REJ03F0026-0100Z Rev.1.0 Sep.05.2003 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/right independent volume control mode or left/right simultaneous volume + balance control mode.) Pass through switch is included to output the input signal as it is, irrespective of the volume/balance control voltages. Shock noise reduction pin is provided to reduce pass through switch on/off shock noise. Built-in reference supply voltage circuit: output current 10 mA (Typ.) Maximum input: 3.4 Vrms (Typ.) (f = 1 kHz, THD = 1%) Low distortion: 0.005% (Typ.) Good channel separation: 102 dB (Typ.) (f = 1 kHz, Vo = 2 Vrms, IHF-A) Recommended Operating Conditions Supply voltage range: Vcc = 8 to 15 V Rated supply voltage: Vcc = 12 V System Configuration Rev.1.0, Sep.05.2003, page 1 of 11 M51132L/FP Pin Configuration IC Internal Block Diagram (M51132L) Rev.1.0, Sep.05.2003, page 2 of 11 M51132L/FP Pin Description Pin No. 1 2 3 4 5 6 7 8 9 Pin Name Vcc Input 1 Output 1 Reference su...