Rainbow-electronics MAX5406 User Manual download pdf (Page 14)

MAX5406

Audio Processor with Pushbutton Interface

14 ______________________________________________________________________________________

Detailed Description

The MAX5406 implements dual logarithmic potentiome-

ters to control volume, dual potentiometers to control

balance, and dual linear digital potentiometers to set

the tone (Figure 1). A debounced pushbutton interface

is provided to control the audio-processor settings. The

MAX5406 provides differential buffered inputs with RF

filters to maximize noise reduction and a mixer to pro-

duce an equal amount of left and right input channels.

In addition to a differential output, the MAX5406 pro-

vides a monophonic output at SUBOUT for systems

with a subwoofer.

CMSNS

BIAS

GENERATOR

RIGHT

LOG POT

LEFT

LOG POT

CONTROLLED

BY AMB

LEFT AMBIENCE

SWITCH

CONTROLLED

BY AMB

RIGHT AMBIENCE

SWITCH

RF FILTER

L1_H

L1_L

L2_H

L2_L

BIAS

R1_H

R1_L

R2_H

R2_L

DIGITAL INTERFACE

DGND

LPR

AMBRI

LOGIC

SHDN

MUTE

AMB

BALL

BALR

VOLDN

VOLUP

BASSDN

BASSUP

TREBDN

TREBUP

CBR1 CBR2 CTR1 CTR2

CRSN

CRSP

SUBOUT

CSUB

CLSN

CLSP

LOUT

ROUT

CBL1 CBL2 CTL1 CTL2

LMR

AMBLI

MAX5406

SUB

CBIAS

BASS/TREBLE OUTPUT STAGE

SEE FIGURE 7

BASS/TREBLE OUTPUT STAGE

SEE FIGURE 7

Figure 1. Block Diagram

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 25 26

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Rainbow-electronics MAX5406 User Manual Page 14

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