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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX5406 Datasheet

Audio Processor

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MAX5406
Audio Processor with Pushbutton Interface
General Description
The MAX5406 stereo audio processor provides a com-
plete audio solution with volume, balance, bass, and tre-
ble controls. It features dual 32-tap logarithmic potentiom-
eters for volume control, dual potentiometers for balance
control, and linear digital potentiometers for tone control.
A simple debounced pushbutton interface controls all
functions. The MAX5406 advances the wiper setting
once per button push. Maxim’s proprietary SmartWiperTM
control eliminates the need for a microcontroller (µC) to
increase the wiper transition rate. Holding the control
input low for more than 1s advances the wiper at a rate
of 4Hz for 4s and 16Hz thereafter. An integrated click/pop
suppression feature eliminates the audible noise gener-
ated by the wiper’s movements.
The MAX5406 provides a subwoofer output that internally
combines the left and right channels. An external filter
capacitor allows for a customized cut-off frequency for the
subwoofer output. A bass-boost mode enhances the low-
frequency response of the left and right channels. An inte-
grated bias amplifier generates the required (VDD + VSS)/2
bias voltage, eliminating the need for external op amps for
unipolar operation.
The MAX5406 also features ambience control to enhance
the separation of the left- and right-channel outputs for
headphones and desktop speakers systems, and a pseu-
dostereo feature that approximates stereo sound from a
monophonic signal.
The MAX5406 is available in a 7mm x 7mm, 48-pin TQFN
package and in a 48-pin TSSOP package and is specified
over the extended (-40°C to +85°C) temperature range.
Applications
● Desktop Speakers
● Portable Audio
● PDAs or MP3 Player Docking Stations
● Karaoke Machines
● Flat-Screen TVs
Features
● Audio Processor Including All Op Amps and Pots
for Volume, Balance, Mute, Bass, Treble, Ambience,
Pseudostereo, and Subwoofer
● 32-Tap Volume Control (2dB Steps)
● Small, 7mm x 7mm, 48-Pin TQFN and 48-Pin
TSSOP Packages
● Single +2.7V to +5.5V or Dual ±2.7V Supply
Operation
● Clickless Switching and Control
● Mute Function to < -90dB (typ)
● Channel Isolation > -70dB (typ)
● Two Sets of Single-Ended or Differential Stereo
Inputs Can Be Used for Summing/Mixing
● Debounced Pushbutton Interface Works with
Momentary Contact Switches or Microprocessors
(µPs)
● Low 0.2µA (typ) Shutdown Supply Current
● Shutdown Stores All Control Settings
0.02% (typ) THD into 10kΩ Load, 25µVRMS (typ)
Output Noise
● Internally Generated 1/2 Full-Scale Bias Voltage for
Single-Ended Applications
● Power-On Volume Setting to -20dB
● Internal Passive RF Filters for Analog Inputs Prevent
High Frequencies from Reaching the Speakers
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
MAX5406EUM -40°C to +85°C 48 TSSOP
MAX5406ETM* -40°C to +85°C 48 TQFN
*Future product—contact factory for availability.
PKG
CODE
U48-1
T4877-6
Pin Configurations appear at end of data sheet.
SmartWiper is a trademark of Maxim Integrated Products, Inc.
19-3817; Rev 1; 4/14


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX5406 Datasheet

Audio Processor

No Preview Available !

MAX5406
Audio Processor with Pushbutton Interface
Absolute Maximum Ratings
L1_H, L1_L, L2_H, L2_L
to VSS.................... -0.3V to the lower of (VDD + 0.3V) or +6V
R1_H, R1_L, R2_H, R2_L
to VSS.................... -0.3V to the lower of (VDD + 0.3V) or +6V
AMB, BALL, BALR, VOLUP, VOLDN, MUTE, SHDN, BASSDN,
BASSUP, TREBDN, TREBUP
to DGND........... -0.3V to the lower of (VLOGIC + 0.3V) or +6V
CTL_, CTR_, CBL_, CBR_, CLS_, CRS_, CSUB, CBIAS,
CMSNS, AMBLI, AMBRI, BIAS
to VSS.................... -0.3V to the lower of (VDD + 0.3V) or +6V
LOUT, ROUT, SUBOUT, LMR,
LPR to VSS............ -0.3V to the lower of (VDD + 0.3V) or +6V
VDD to VSS...............................................................-0.3V to +6V
VDD to VLOGIC.......................................................................±6V
VLOGIC to DGND.....................................................-0.3V to +6V
DGND to VSS...........................................................-0.3V to +6V
LOUT, ROUT, SUBOUT Short Circuited to VSS .......Continuous
Continuous Power Dissipation (TA = +70°C)
48-Pin TQFN (derate 27.8mW/°C above +70°C).......2222mW
48-Pin TSSOP (derate 16mW/°C above +70°C)........1282mW
Operating Temperature Range............................ -40°C to +85°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -60°C to +150°C
Lead Temperature (soldering, 10s).................................. +300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics
(VDD = VLOGIC = +5.0V, VSS = 0, VBIAS = VCMSNS = VDD/2, DGND = 0, ambience disabled, VAMBLI = VAMBRI = VBIAS, VR1_L =
VL1_L = VR2_L = VL2_L = external VBIAS, CCSUB = 0.15µF, CCLS = CCRS = 1µF, CCBL = CCBR = 3.3nF, CCTL = CCTR = 4.7nF, CBIAS
= 0.1µF, CCBIAS = 50µF (see the Typical Application Circuit), TA = TMIN to TMAX unless otherwise specified. Typical values are at TA
= +25°C). (Note1)
PARAMETER
Signal-Inputs Input Resistance
Signal-Inputs Input Capacitance
RF Rejection
SYMBOL
RIN
CIN
Differential Input Voltage Range
VIN
Common-Mode Input Voltage
Range
VCM
Bias Voltage
Bias-Voltage Input Current
VBIAS
AUDIO PROCESSING FUNCTIONS
Maximum Balance Difference
Minimum Balance Difference
Balance Resolution
Maximum Volume Attenuation
Minimum Volume Attenuation
Volume Resolution
Volume-Control Steps
CONDITIONS
With respect to
VBIAS
RINH
RINL
With respect to VBIAS
2MHz to 2.4GHz two-tone test,
2/2.01MHz input to 10kHz out
VDD = +5V, VSS = 0, VCM = VBIAS, gain
error ≤ -0.5dB
VDD = +2.7V, VSS = -2.7V, VCM = VBIAS,
gain error ≤ -0.5dB
VDD = +5V, VSS = 0, VBIAS = VDD/2,
VDIFF = 100mV
VDD = +2.7V, VSS = -2.7V, VBIAS = 0,
VDIFF = 100mV
Internally generated (VCMSNS = VSS)
L_ _H = R_ _H = VBIAS, L_ _L = R_ _L =
open, VCMSNS = VDD
MIN TYP MAX
8 10
16 20
5
20
-4 +4
-4.5 +4.5
VSS + 0.5V VDD - 0.5V
(VDD + VSS)/2
1
UNITS
kΩ
pF
dBc
V
V
V
mA
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
10 12 14
dB
0 dB
2 dB
-63 -62 -59
dB
-0.5 0 +0.5 dB
2 dB
32 steps
www.maximintegrated.com
Maxim Integrated 2


Part Number MAX5406
Description Audio Processor
Maker Maxim Integrated Products
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MAX5406 Datasheet PDF






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