max5406eumt Maxim Integrated Products, Inc., max5406eumt Datasheet - Page 14

• Manufacturer Part Number: max5406eumt
• Description: Max5406 Audio Processor With Pushbutton Interface
• Manufacturer: Maxim Integrated Products, Inc.

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
Audio Processor with Pushbutton Interface
Figure 1. Block Diagram
14
CMSNS
CBIAS
R1_H
R2_H
R1_L
R2_L
L1_H
L2_H
L1_L
L2_L
BIAS
______________________________________________________________________________________
RF FILTER
RF FILTER
RF FILTER
RF FILTER
GENERATOR
BIAS
MAX5406
Detailed Description
DGND
V
SS
LMR AMBLI
RIGHT AMBIENCE
AMBRI V
LPR
LEFT AMBIENCE
SWITCH
SWITCH
LOGIC
SHDN
MUTE
AMB
DIGITAL INTERFACE
BALL
CONTROLLED
V
CONTROLLED
LOG POT
DD
BY AMB
BY AMB
RIGHT
BALR
LOG POT
VOLDN
LEFT
VOLUP
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.
BASSDN
BASSUP
TREBDN
TREBUP
CBR1
CBL1
BASS/TREBLE OUTPUT STAGE
R
R
BASS/TREBLE OUTPUT STAGE
LS
RS
CBL2
CBR2
SEE FIGURE 7
SEE FIGURE 7
CTL1
CTR1 CTR2
CTL2
R
SUB
CSUB
CLSN
CRSN
CRSP
LOUT
CLSP
ROUT
SUBOUT