51914HK 20120417-S00003/21004TN(OT) No.7332-1/13

http://onsemi.com

Semiconductor Components Industries, LLC, 2014

May, 2014

ORDERING INFORMATION

See detailed ordering and shipping information on page 13 of this data sheet.

LC75344MD

Overview

The LC75344MD is a two-channel electronic volume control IC that is controlled by data input over a serial interface.

Functions

 Volume control: 0 dB to –50 dB in 1 dB steps, –52 dB to –78 dB in 2 dB steps, and –, for a total of 66 positions.

A balance function can be implemented by controlling the left and right channels independently.

Features

 Built-in buffer amplifiers minimize the number of external components required.

 Fabricated in a silicon gate CMOS process to minimize the switching noise generated by internal switches.

 Built-in reference voltage generation circuit for the analog ground level.

 All settings are controlled by data input over a serial interface that conforms to the CCB specifications.

Specifications

Absolute Maximum Ratings at Ta = 25

C, VSS = 0V

Parameter

Symbol

Conditions

Ratings

unit

Maximum supply voltage

VDD max

VDD

11

V

Input voltage

VIN max

CE, CL, DI

–0.3 to +11.0

V

LIN, RIN

VSS –0.3 to VDD +0.3

Output voltage

VOUT1

OSC

–0.3 to VDD +0.3

V

VOUT2

S1 to S87, COM1 to COM4, P1 to P8

–0.3 to VLCD +0.3

Allowable power dissipation

Pd max

Ta ≤ 75°C *1: When mounted on a PCB.

300

mW

Operating temperature

Topr

–30 to +75

C

Storage temperature

Tstg

–40 to +125

C

CMOS LSI

Two-Channel Electronic

Volume Control System

Ordering number : EN7332A

by ON Semiconductor® for this format.

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed,

damage may occur and reliability may be affected.

SOIC-10 NB