Ordering number : ENN7027

O1901RM (OT) No. 7027-1/28

Overview

The LC75410E and 75410W are electronic volume

controllers that enable control of volume, balance, fader,

bass/treble/mid, loudness, input switching, and input gain

using only a small number of external components.

Functions

• Volume: 0 dB to –79.5 dB in 0.5-dB steps, and –

∞ (161

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/mid: Each band can be controlled in 1-dB

steps from 0 dB to ±6 dB, and in 2-dB

steps from ±8 dB to ±12 dB.

• Input gain: 0 dB to +18.75 dB (1.25-dB steps)

amplification is possible for the input signal.

• Input switching: five input signals can be selected for

Left and for Right (Four are single-

ended inputs and one is a differential

input.)

• Loudness: A tap is output from the –32 dB position of a

2 dB step volume control resistor ladder.

A loudness function can be implemented by

connecting an external RC circuit.

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)

LC75410E, 75410W

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

Electronic Volume Controller

for Car Audio Systems

CMOS IC

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 damage. Consult with your SANYO representative nearest you before using

any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other

parameters) listed in products specifications of any and all SANYO products described or contained

herein.

• 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.