MOSA

MS6258

Gain And Attenuation Volume Controller IC

REV 6

1

www.mosanalog.com

Gain and Attenuation Volume Controller IC

4 Sets of Stereo Input, Low voltage

Gain and Attenuation 15~-79dB

FEATURES

‧ Operation range: 2.7V~6.5V.

‧ Low power consumption.

‧ Gain/Attenuation: 15dB to –79dB.

‧ +1dB/step, -1dB/step and -10dB/step are controlled

independently.

‧ Good PSRR and low pop noise.

‧ I

‧ Housed in 16 pin SOP, SSOP package.

APPLICATIONS

‧ Multimedia system.

‧ Hi-Fi audio system.

‧ MP3，PDA.

DESCRIPTION

The MS6258 is a stereo audio volume controller IC with 4 sets of stereo input. It uses CMOS technology specially

for the low voltage application with low noise, rail-to-rail output. The MS6258 provide an I

gain / attenuation range of 15dB to -79dB. The gain and attenuation, +1dB/step, -1dB/step and -10dB/step are

controlled independently. The initial condition is set to be maximum attenuation –79dB (-70dB + -9dB), gain 0dB and

mute on mode when the power is up.

BLOCK DIAGRAM

REF

SDA

SCL

R-OUT

L-OUT

-10dB/Step

-1dB/Step

1dB/Step

Serial Bus Decoder and Latches

Reference

Circuit

1dB/Step

-1dB/Step

-10dB/Step

Mute

Control

Attenuation 0~-79dB

Gain 0~15dB

Gain 0~15dB

Attenuation 0~-79dB

R-IN2

R-IN3

L-IN1

L-IN2

L-IN3

R-IN1

R-IN4

L-IN4

V

REF