Ordering number : EN5330

41596HA (OT) No. 5330-1/18

Overview

The LC75372E is an electronic volume control that can

implement volume, balance, fader, bass/treble, loudness,

input switching, and input level control functions with a

minimal number of external components.

Features

• Volume: Provides 81 positions, from 0 dB to –79 dB (in

1-dB steps) and –

∞. A balance function can be

implemented by controlling the left and right channels

independently.

• Fader: This function can attenuate either the rear or the

front outputs over 16 positions. (From 0 to –20 dB in

2-dB steps, from –20 to –25 dB in one 5-dB step, from

–25 to –45 dB in 10-dB steps, –60 dB, and –

∞.)

• Bass/treble: Forms an NF-type tone control circuit (LUX

type) with the addition of external capacitors. The base

and treble controls each have 15 positions.

• Loudness: The volume resistor ladders are tapped

starting at the –20-dB position. A loudness function can

be implemented by adding external RC circuits at these

taps.

• The signal can be selected from one of three inputs for

each of the left and right channels. The input signals can

be amplified from 0 to +18 dB in 6-dB steps.

• On-chip buffer amplifiers for a minimum of external

components.

• Minimal switching noise due to fabrication in a silicon-

gate CMOS process.

• Built-in reference voltage generation circuit

• Serial data input: Supports CCB format communication

with the system controller.

Package Dimensions

unit: mm

3148-QFP44MA

SANYO: QIP44MA

[LC75372E]

LC75372E

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN

Electronic Volume Control

for Car Stereo Systems

CMOS LSI

• 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.

Specifications

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

11

V

Maximum input voltage

CL, DI, CE, LIN, RIN, LFIN, RFIN, L1 to L3, R1 to R3

V

Allowable power dissipation

Pd max

Ta

≤ 85°C

260

mW

Operating temperature

Topr

–40 to +85

°C

Storage temperature

Tstg

–50 to +125

°C