LV3311PNM

LV3311PNM Electronic Volume IC for Car Audio System Overview The LV3311PNM is an electronic volume IC implements a rich set of audio control functions with a minimal number of external components. Functions include input selection switching function, an input gain, volume, loudness, balance, fader, bass/mid/treble and subwoofer control. Features  It is possible to eliminate from the external components of equalizer control block by SCF technology.  Zero-cross switching circuits (Volume control block and Fader control block), soft step (3 band equalizer control and Suboofer control) and soft mute circuits used for low noise even when input signals are present.  Low power consumption due to the use of BiCMOS process.  All functions are controlled using serial data (CCB*). Features  Input selector : Four of the input systems are single-end inputs, one uses differential inputs.  Input gain control : The input single can be amplified by 0 to +18 dB (1 dB steps.)  Loudness control : Taps are output starting at the 32 dB position of the ladder resistor and a loudness function implemented with external capacitor and resistor components.  Volume control : +10 dB to 79 dB /  (1 dB steps) L/R independent control.  Bass control : The bass control gain can be maximum boost +12 dB position and maximum cut 12 dB position. ( +12 dB to 12 dB in 2 dB steps.) The bass control center frequency 70 Hz / 100 Hz / 120 Hz can be selected. The bass control quality factor 1.0/2.0 can be ...