MOSA

MS6274

Volume Controller with soft step IC

V1.5

1/19

www.mosanalog.com

Stereo Audio Volume Controller With Soft Steps,

4 Stereo(1 quasi-differential) Inputs,

Low voltage, Gain/Loss, Low power consumption.

FEATURES

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Operation range: 2.5V~6.5V.

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One quasi-differential input.

‧

Input Gain: 0dB ~ +15dB.

‧

Soft step volume control：-79dB ~ +15dB.

‧

Low power consumption.

‧

Good PSRR and low pop noise.

‧

‧

Housed in 16 pin SSOP packages.

APPLICATIONS

‧

Multimedia system

‧

Hi-Fi audio system.

‧

Bluetooth.

‧

DAB

DESCRIPTION

The MS6274 is a stereo audio volume controller IC with 4 sets of stereo inputs(1 quasi-differential Input). It has

Input gain(0 ~ +15dB), Soft step volume control(-79dB ~ +15dB) with programmable blend times. It uses CMOS

technology specially for the low voltage application with low noise, rail-to-rail output.

BLOCK DIAGRAM

SDA

SCL

R-OUT

L-OUT

Supply

INPUT

Mux

Gain 0dB ~ 15dB

R-IN3

R-IN2

L-IN1

L-IN2

L-IN3

R-IN4/DiffR

R-IN1

L-IN4/DiffL

MS6274

NC/DiffG

GND

Input Gain

-79dB ~ +15dB

Volume/Mute

(With Soft step)

Gain 0dB ~ 15dB

Input Gain

-79dB ~ +15dB

Volume/Mute

(With Soft step)