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LC75412W

Sanyo Semicon Device
Part Number LC75412W
Manufacturer Sanyo Semicon Device
Description Electronic Volume Controller
Published Mar 22, 2005
Detailed Description Ordering number : ENN7053 CMOS IC LC75412E, 75412W Electronic Volume Controller for Car Audio Systems Overview The LC...
Datasheet PDF File LC75412W PDF File

LC75412W
LC75412W

Overview
Ordering number : ENN7053 CMOS IC LC75412E, 75412W Electronic Volume Controller for Car Audio Systems Overview The LC75412E and 75412W are electronic volume controllers that enable control of volume, balance, fader, bass/treble, loudness, input switching, and input gain using only a small number of external components.
Features • On-chip buffer amplifier cuts down number of external components • Low switching noise generated by on-chip switch through use of silicon gate CMOS process, for low switching noise when there is no signal • Low switching noise when there is a signal due to use of on-chip zero-cross switching circuit • On-chip 1/2 VDD reference voltage circuit • Controls performed with serial input (CCB) Functions • Volume: 0 dB to –79 dB in 1-dB steps, and – ∞ (81 positions) Balance function with separate L/R control • Fader: rear output or front output can be attenuated across 16 positions (in 1-dB steps from 0 dB to –2 dB, 2-dB steps from –2 dB to –20 dB, 10-dB steps from –20 dB to –30 dB, and –45 dB, –60 dB, –∞) • Bass/treble: Each band can be controlled in 2-dB steps from ±0 dB to ±18 dB.
• Input gain: 0 dB to +18.
75 dB (1.
25-dB steps) amplification is possible for the input signal.
• Input switching: Six input signals can be selected for Left and for Right (five are singleended inputs and one is a differential input.
) • Loudness: A tap is output from the –32 dB position of a volume control resistor ladder.
A loudness function can be implemented by connecting an external RC circuit.
• CCB is a trademark of SANYO ELECTRIC CO.
, LTD.
• CCB is SANYO’s original bus format and all the bus addresses are controlled by SANYO.
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material dama...


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