MAX5406EUM+ ,Audio Processor with Pushbutton InterfaceApplicationsPIN- PKGPART TEMP RANGE● Desktop SpeakersPACKAGE CODE● Portable AudioMAX5406EUM -40°C t ..
MAX5407EKA+T ,32-Tap Audio Logarithmic Taper Digital PotentiometerApplicationsOrdering InformationAudio Volume ControlPIN-PART TEMP. RANGE TOP MARKFading/Balancing ..
MAX5408EEE ,Dual / Audio / Log Taper Digital PotentiometersELECTRICAL CHARACTERISTICS(V = +2.7V to +3.6V (MAX5408/MAX5409), V = +4.5V to +5.5V (MAX5410/MAX541 ..
MAX5408EEE+T ,Dual, Audio, Log Taper Digital PotentiometersFeaturesThe MAX5408–MAX5411 dual, logarithmic taper digital♦ Log Taper with 2dB Steps Between Tapsp ..
MAX5410EEE+ ,Dual, Audio, Log Taper Digital PotentiometersApplicationsCapabilitiesStereo Volume Control Ordering InformationFading and Balancing Stereo Signa ..
MAX5410EEE+ ,Dual, Audio, Log Taper Digital PotentiometersELECTRICAL CHARACTERISTICS(V = +2.7V to +3.6V (MAX5408/MAX5409), V = +4.5V to +5.5V (MAX5410/MAX541 ..
MAX992ESA ,High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O ComparatorsELECTRICAL CHARACTERISTICS (Note 1)(V = +2.7V to +5.5V, V = 0V, V = 0V, T = -40°C to +85°C, unless ..
MAX992ESA ,High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O ComparatorsFeaturesThe MAX987/MAX988/MAX991/MAX992/MAX995/' 120ns Propagation DelayMAX996 single/dual/quad mic ..
MAX992ESA+ ,High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O ComparatorsApplicationsMAX987Portable/Battery- Threshold Detectors/V 2CCMAX988Powered Systems DiscriminatorsMo ..
MAX992EUA ,High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O ComparatorsELECTRICAL CHARACTERISTICS (Note 1)(V = +2.7V to +5.5V, V = 0V, V = 0V, T = -40°C to +85°C, unless ..
MAX992EUA ,High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O ComparatorsMAX987/MAX988/MAX991/MAX992/MAX995/MAX99619-1266; Rev 0b; 7/97High-Speed, Micropower, Low-Voltage,S ..
MAX992EUA+ ,High-Speed, Micropower, Low-Voltage, SOT23, Rail-to-Rail I/O ComparatorsFeaturesThe MAX987/MAX988/MAX991/MAX992/MAX995/♦ 120ns Propagation DelayMAX996 single/dual/quad mic ..
MAX5406EUM+
Audio Processor with Pushbutton Interface
Pin Configurations appear at end of data sheet.
General DescriptionThe 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
*Future product—contact factory for availability.
SmartWiper is a trademark of Maxim Integrated Products, Inc.
PARTTEMP RANGEPIN-
PACKAGE
PKG
CODEMAX5406EUM-40°C to +85°C48 TSSOPU48-1
MAX5406ETM*-40°C to +85°C48 TQFNT4877-6
MAX5406Audio Processor with Pushbutton Interface
Ordering Information
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
(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)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSSignal-Inputs Input ResistanceRINWith respect to
VBIAS
RINH810kΩRINL1620
Signal-Inputs Input CapacitanceCINWith respect to VBIAS5pF
RF Rejection2MHz to 2.4GHz two-tone test,
2/2.01MHz input to 10kHz out 20dBc
Differential Input Voltage RangeVIN
VDD = +5V, VSS = 0, VCM = VBIAS, gain error ≤ -0.5dB-4+4
VDD = +2.7V, VSS = -2.7V, VCM = VBIAS, gain error ≤ -0.5dB-4.5+4.5
Common-Mode Input Voltage
RangeVCM
VDD = +5V, VSS = 0, VBIAS = VDD/2,
VDIFF = 100mV
VSS + 0.5V VDD - 0.5VVVDD = +2.7V, VSS = -2.7V, VBIAS = 0,
VDIFF = 100mV
Bias VoltageVBIASInternally generated (VCMSNS = VSS)(VDD + VSS)/2V
Bias-Voltage Input CurrentL_ _H = R_ _H = VBIAS, L_ _L = R_ _L =
open, VCMSNS = VDD1mA
AUDIO PROCESSING FUNCTIONSMaximum Balance Difference(Note 2)101214dB
Minimum Balance Difference(Note 2)0dB
Balance Resolution(Note 2)2dB
Maximum Volume Attenuation(Note 2)-63-62-59dB
Minimum Volume Attenuation(Note 2)-0.50+0.5dB
Volume Resolution(Note 2)2dB
MAX5406Audio Processor with Pushbutton Interface
Absolute Maximum RatingsStresses 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)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSGain Matching of Input 1 to Input
2 of Each Channel Volume = 0dB (Note 2)-0.1+0.1dB
Gain Matching of Left to Right
ChannelVolume = 0dB (Note 2)-0.1+0.1dB
Bass-Boost RangefBASS = 1kHz, treble = 0dB,
CCB_ = open, CCT_ = open (Note 3)1014dB
Bass-Cut RangefBASS = 1kHz, treble = 0dB,
CCB_ = open, CCT_ = open (Note 3)1014dB
Treble-Boost RangefTREBLE = 1kHz, bass = 0dB,
CCB_ = open, CCT_ = short (Note 3)1015dB
Treble-Cut RangefTREBLE = 1kHz, bass = 0dB,
CCB_ = open, CCT_ = short (Note 3)1015dB
Bass-Boost/-Cut StepsMax boost to max cut21steps
Treble-Boost/-Cut StepsMax boost to max cut21steps
Bass End-to-End ResistanceRBPOT116kΩ
Treble End-to-End ResistanceRTPOT17kΩ
Bass Series ResistanceRB40kΩ
Treble Series ResistanceRT3.5kΩ
Mute Attenuation-90dB
AC PERFORMANCE (VIN = 1VP-P, RL = 10kΩ, VDD = +2.7V, VSS = -2.7V, volume = 0dB, treble = bass = 0dB)Total Harmonic Distortion Plus
NoiseTHD+N (Notes 4, 5) 0.020.05%
Interchannel CrosstalkL to R or R to L-70dB
ROUT/LOUT OUTPUTSMaximum Load CapacitanceCLOAD100pF
Output-Voltage SwingVOUTP-PRL = 10kΩ, VDD = +2.7V, VSS = -2.7V-2.3+2.3V
Output Offset VoltageVOOSVDD = +2.7V, VSS = -2.7V, volume = 0dB,
RL = 10kΩ, inputs = VBIAS-300+30mV
Short-Circuit Output CurrentISCShorted to VSS15mA
Output ResistanceR_OUTILOAD = 100µA to 500µA10Ω
MAX5406Audio Processor with Pushbutton Interface
Electrical Characteristics (continued)
(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)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSOutput Noiseen
fBW = 20Hz to 20kHz, VIN = VBIAS,
mute on, noise measured at LOUT and
ROUT (Notes 2, 4, 5)
3.59.5µVRMS
fBW = 20Hz to 20kHz, VIN = VBIAS, mute
off, volume = 0dB, noise measured at
LOUT and ROUT (Notes 2, 4, 5)35
Power-Supply Rejection RatioPSRR100mVP-P at 217Hz on VDD-70dB
100mVP-P at 1kHz on VDD-65
SUBWOOFER OUTPUTGain(VL1_H - VL1_L ) to (VSUBOUT - VBIAS),
volume = 0dB (Note 2)-6dB
Highpass Filter Cutoff FrequencyVolume = 0dB15Hz
Internal Highpass Cutoff
ResistanceR_SFigure 1213.8kΩ
Lowpass Filter Cutoff FrequencyVolume = 0dB100Hz
Internal Lowpass Cutoff
ResistanceRSUBFigure 1210.6kΩ
Maximum Load CapacitanceCSUBLOAD100pF
Output-Voltage SwingVSUBOUTP-PRL = 10kΩ, VDD = +2.7V, VSS = -2.7V -2.3+2.3V
Output Offset VoltageVSUBOOSVDD = +2.7V, VSS = -2.7V, volume = 0dB,
RL = 10kΩ-150+15mV
Short-Circuit Output CurrentISUBSCShorted to VSS12mA
Output ResistanceRSUBOUTILOAD = 100µA to 500µA10Ω
Output Noiseen
fBW = 20Hz to 20kHz, VIN = VBIAS,
mute on, noise measured at SUBOUT
(Notes 2, 4, 5)11
µVRMSfBW = 20Hz to 20kHz, VIN = VBIAS,
volume = 0dB, mute off, noise measured
at SUBOUT (Notes 2, 4, 5)35
Power-Supply Rejection RatioPSRR100mVP-P at 217Hz on VDD-70dB100mVP-P at 1kHz on VDD-65
PUSHBUTTON CONTACT INPUTS (MUTE, AMB, VOLUP, VOLDN, BALL, BALR, BASSUP, BASSDN, TREBUP, TREBDN)Internal Pullup ResistorRPU50kΩ
Single-Pulse Input Low TimetLPWFigures 2a, 11a, 11b30ms
Repetitive Input Pulse
Separation TimetHPWFigure 2b, 11a, 11b40ms
First Autoincrement PointtA1Figure 31s
First Autoincrement RatefA1Figure 34Hz
Second Autoincrement PointtA2Figure 34s
MAX5406Audio Processor with Pushbutton Interface
Electrical Characteristics (continued)
(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)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
DIGITAL INPUTS (VLOGIC > 3.6V) (MUTE, AMB, VOLUP, VOLDN, BALL, BALR, BASSUP, BASSDN, TREBUP, TREBDN)Input-Voltage HighVIH2.4V
Input-Voltage LowVIL0.8V
SHDN Input-Voltage HighVIHSHDN3.4V
SHDN Input-Voltage LowVILSHDN0.8V
Input Leakage Current±5µA
Input Capacitance5pF
DIGITAL INPUTS (VLOGIC ≤ 3.6V) (MUTE, AMB, VOLUP, VOLDN, BALL, BALR, BASSUP, BASSDN, TREBUP, TREBDN)Input-Voltage High VIH2V
Input-Voltage Low VIL0.6V
SHDN Input-Voltage HighVIHSHDN2V
SHDN Input-Voltage LowVILSHDN0.6V
Input Leakage Current±5µA
Input Capacitance5pF
TIMING CHARACTERISTICS Wiper Settling TimetWSClick/pop suppression inactive,
Figures 2a, 11a, 11b45ms
POWER SUPPLIES (VCMSNS = VSS, internal bias enabled)Supply-Voltage Difference VDD - VSS+5.5V
Positive Analog Supply VoltageVDD+2.7+5.5V
Negative Analog Supply VoltageVSS-2.70V
Dual-Supply Positive Supply
VoltageVDDVSS = -2.7V0+2.7V
Active Positive Supply Current IDD
No signal, all logic inputs pulled high to
VLOGIC or unconnected, SHDN = VLOGIC,
RL = 10kΩ (Note 6)13mA
Active Negative Supply Current
(Note 6)ISS
No signal, all logic inputs connected to
DGND or VLOGIC, VDD = +5V, VSS = 0-13-10No signal, all logic inputs connected to
DGND or VLOGIC, VDD = +2.7V,
VSS = -2.7V
Shutdown Supply Current
(Note 6)ISHDN
No signal, VDD = 5V, VSS = 0, all logic
inputs connected to DGND or VLOGIC,
SHDN = DGND
No signal, VDD = +2.7V,
VSS = -2.7V, all logic at DGND
or VLOGIC, SHDN = DGND
IDD0.2
ISS50
MAX5406Audio Processor with Pushbutton Interface
Electrical Characteristics (continued)
Note 1: All devices 100% production tested at TA = +85°C. Limits over the operating temperature range are guaranteed by design.
Note 2: Treble = bass = 0dB. CCB_ = open, CCT_ = short, left input signal = right input signal = +2V.
Note 3: See Tables 3 and 4 and Figure 7. VDD = +2.7V, VSS = -2.7V.
Note 4: Guaranteed by design.
Note 5: Measured with A-weighted filter.
Note 6: Supply current measured while attenuator position is fixed.
Note 7: Set _OUT = 0dB and shutdown device SHDN = 0. tWU is the time required for _OUT to reach 0dB after SHDN goes high.
(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)
(TA = +25°C, unless otherwise noted.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSPower-Up TimetPUPower irst applied, _OUT = -20dB1ms
Wake-Up TimetWUFrom shutdown (Note 7)1ms
Logic Supply Voltage VLOGICDGND = 0, VLOGIC ≤ VDD+2.7VDDV
Logic Active Supply Current ILOGIC
No signal, one button pressed, remaining
logic inputs connected to VLOGIC or
unconnected
150µA
Logic Shutdown Supply Current
No signal, all logic inputs connected to
VLOGIC or unconnected, SHDN = DGND
(Note 6)2µA
ATTENUATION vs. TAP POSITIONTAP POSITION
ATTENUATION (dB)
MAX5406 toc01b48121620242832
VDD = VLOGIC = 2.7V, VSS = -2.7V
BAXANDALL CURVEFREQUENCY (Hz)
GAIN (dB)
MAX5406 toc02a
-10100100010,000100,000
VDD = VLOGIC = 5V, VSS = 0
TREBLE = BASS
CCB_ = 10nF
CCT_ = 2.2nF
ATTENUATION vs. TAP POSITIONTAP POSITION
ATTENUATION (dB)
MAX5406 toc01a48121620242832
VDD = VLOGIC = 5V, VSS = 0
VOLUP = 0dB
MAX5406Audio Processor with Pushbutton Interface
Electrical Characteristics (continued)
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
BAXANDALL CURVEFREQUENCY (Hz)
GAIN (dB)
MAX5406 toc02c
-10100100010,000100,000
CCB_ = 10nF
CCT_ = 2.2nF
VDD = VLOGIC = 5V, VSS = 0
BASS = 0dB
BAXANDALL CURVEFREQUENCY (Hz)
GAIN (dB)
MAX5406 toc02d
-10100100010,000100,000
CCB_ = 10nF
CCT_ = 2.2nF
VDD = VLOGIC =2.7V, VSS = -2.7V
VIN = 0.5VP-P
BASS = 0dB
BAXANDALL CURVEFREQUENCY (Hz)
GAIN (dB)
MAX5406 toc02b
-10100100010,000100,000
VDD = VLOGIC = 2.7V, VSS = -2.7V
VIN = 0.5VP-P
BASS = TREBLE
CCB_ = 10nF
CCT_ = 2.2nF
BAXANDALL CURVEFREQUENCY (Hz)
GAIN (dB)
MAX5406 toc02e
-10100100010,000100,000
CCB_ = 10nF
CCT_ = 2.2nF
VDD = VLOGIC = 5V, VSS = 0
TREBLE = 0dB
BAXANDALL CURVEFREQUENCY (Hz)
GAIN (dB)
MAX5406 toc02f
-10100100010,000100,000
CCB_ = 10nF
CCT_ = 2.2nF
VDD = VLOGIC = 2.7V,
VSS = -2.7V, VIN = 0.5VP-P
TREBLE = 0dB
SINGLE-SUPPLY SUBOUT
FREQUENCY RESPONSEFREQUENCY (Hz)
GAIN (dB)
MAX5406 toc03a
-10100100010,000100,000
DUAL INPUTS
DUAL-SUPPLIES SUBOUT
FREQUENCY RESPONSEGAIN (dB)
MAX5406 toc03b
-10100100010,000100,000
DUAL INPUTS
VDD = VLOGIC = 2.7V, VSS = -2.7V
VOLUP = 0dB
LOUT FREQUENCY RESPONSEGAIN (dB)
MAX5406 toc03c
-101001k10k100k1M10M
VDD = VLOGIC = 5V, VSS = 0
VOLUP = 0dB
DUAL-SUPPLIES LOUT
FREQUENCY RESPONSEGAIN (dB)
MAX5406 toc03d
-101001k10k100k1M10M
VDD = VLOGIC = 2.7V, VSS = -2.7V
VOLUP = 0dB
MAX5406Audio Processor with Pushbutton Interface
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
DUAL-SUPPLIES ROUT
FREQUENCY RESPONSEFREQUENCY (Hz)
GAIN (dB)
MAX5406 toc03f
-101001k10k100k1M10M
VDD = VLOGIC = 2.7V, VSS = -2.7V
VOLUP = 0dB
FREQUENCY (kHz)
PSRR (dB)
PSRR vs. FREQUENCY0.11101001,000
MAX5406 toc4a
VDD = VLOGIC = 5V, VSS = 0
100mVP-P ON VDD
ROUT FREQUENCY RESPONSEFREQUENCY (Hz)
GAIN (dB)
MAX5406 toco3e
-101001k10k100k1M10M
VDD = VLOGIC = 5V, VSS = 0
VOLUP = 0dB
FREQUENCY (kHz)
PSRR (dB)
PSRR vs. FREQUENCY0.11101001,000
MAX5406 toc4b
VDD = VLOGIC = 2.7V, VSS = -2.7V
100mVP-P ON POSITIVE SUPPLY
FREQUENCY (kHz)
PSRR (dB)
PSRR vs. FREQUENCY0.11101001,000
MAX5406 toc4c
VDD = VLOGIC = 2.7V, VSS = -2.7V
100mVP-P ON NEGATIVE SUPPLY
OUTPUT SWING
vs. SUPPLY VOLTAGE
MAX5406 toc5a
VDD (V)
OUTPUT SWING (V)
SINGLE-SUPPLY OPERATION
VDD = VLOGIC, THD = 0.02% AT 1kHz
OUTPUT SWING
vs. SUPPLY VOLTAGE
MAX5406 toc5b
OUTPUT SWING (V)
DUAL-SUPPLY OPERATION
VLOGIC = VDD, THD = 0.02% AT 1kHz
TOTAL SUPPLY CURRENT
vs. TEMPERATURE (IDD + ILOGIC)SUPPLY CURRENT (mA)
MAX5406 toc06a
VDD = VLOGIC = 5V, VSS = 0
INACTIVE MODE, NO BUTTON PUSHED
ACTIVE MODE, ONE BUTTON PUSHED
TOTAL SUPPLY CURRENT
vs. TEMPERATURE (IDD + ILOGIC)SUPPLY CURRENT (mA)
MAX5406 toc06b
VDD = VLOGIC = 2.7V, VSS = -2.7V
TOTAL SUPPLY CURRENT: IDD + ILOGIC
ACTIVE MODE (ONE BUTTON PUSHED)
INACTIVE MODE (NO BUTTON PUSHED)
MAX5406Audio Processor with Pushbutton Interface
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
4ms/div
WIPER SWITCHING TRANSIENT
(SUPPRESSION CIRCUIT ACTIVE)MAX5406 toc07b
5VP-P SINE WAVE
BETWEEN L1_H
AND L1_L
VOLUP
OUTPUT
ILOGIC vs. VLOGICVLOGIC (V)
ILOGIC
(A)
MAX5406 toc08a
VDD = 5.5V, VSS = 0
ACTIVE MODE (ONE BUTTON PUSHED)
TA = +25°C
TA = -40°C
TA = +85°C
10µs/div
WIPER SWITCHING TRANSIENTMAX5406 toc07a
DC LEVEL AT
THE INPUT
OUTPUT
ILOGIC vs. VLOGICVLOGIC (V)
ILOGIC
(nA)
MAX5406 toc08b
240VDD = 5.5V, VSS = 0
INACTIVE MODE (NO BUTTON PUSHED)
TA = -40°C
TA = +85°C
TA = +25°C
THD PLUS NOISE vs. FREQUENCYMAX5406 toc09a
FREQUENCY (kHz)
THD+N (%)10.1
VDD = VLOGIC = 5V, VSS = GND
VIN = 4.6VP-P
RL = 10kΩ
NO LOAD
THD PLUS NOISE vs. FREQUENCYMAX5406 toc09b
FREQUENCY (Hz)
THD+N (%)10.10.01100
VDD = VLOGIC = 2.7V, VSS = -2.7
VIN = 4.6VP-P
RL = 10kΩ
NO LOAD
CROSSTALK (dB)
CROSSTALK vs. FREQUENCY-901k10k100k1001M
MAX5406 toc10a
VDD = VLOGIC = 5V, VSS = 0,
VIN = 1VP-P, RL = 10kΩ
CROSSTALK (dB)
CROSSTALK vs. FREQUENCY-801k10k100k1001M
MAX5406 toc10b
VDD = 2.7V, VSS = -2.7V, VLOGIC = 2.5V,
VIN = 1VP-P, RL = 10kΩ
TOTAL SUPPLY CURRENT
vs. SUPPLY VOLTAGE (IDD + ILOGIC)SUPPLY CURRENT (mA)
MAX5406 toc1
VDD = VLOGIC = 5V, VSS = 0
ACTIVE MODE, ONE BUTTON PUSHED
TA = +25°C
TA = +85°C
TA = -40°C
MAX5406Audio Processor with Pushbutton Interface
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
LOUT NOISE vs. FREQUENCY
MAX5406 toc12a
FREQUENCY (kHz)
NOISE (V
RMS
/Hz)
VDD = VLOGIC = 2.7V, VSS = -2.7V
MUTE OFFMUTE ON
TOTAL SUPPLY CURRENT
vs. SUPPLY VOLTAGE (IDD + ILOGIC)SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
MAX5406 toc1
VDD = VLOGIC = 5V, VSS = 0
INACTIVE MODE, NO BUTTON PUSHED
TA = +25°C
TA = +85°C
TA = -40°C
ROUT NOISE vs. FREQUENCY
MAX5406 toc12b
FREQUENCY (kHz)
NOISE (V
RMS
/Hz)
VDD = VLOGIC = 2.7V, VSS = -2.7V
MUTE OFFMUTE ON
SUBOUT NOISE vs. FREQUENCY
MAX5406 toc12c
FREQUENCY (kHz)
NOISE (V
RMS
/Hz)
VDD = VLOGIC = 2.7V, VSS = -2.7V
-1010010100010,000
INPUT RF REJECTIONMAX5406 toc13
10kHz OUTPUT AMPLITUDE (f
2-f
1) = 10kHz(dBm)
VOLUME = 0dB
VDD = 2.7V, VSS = -2.7V
INPUT = 200mVP-P AT L1_H
MAX5406Audio Processor with Pushbutton Interface
Typical Operating Characteristics (continued)
PINNAMEFUNCTION
TSSOPTQFN43CBIASBypass Capacitor Connection Point to Internally Generated Bias. Bypass CBIAS with a 50µF
capacitor to system analog ground.44VSSNegative Power-Supply Input. Bypass with a 0.1µF capacitor to system analog ground.45L1_HLeft-Channel 1 High Terminal Input. Connect the source between L1_H and L1_L for differential
signals. Connect the source to L1_H and tie L1_L to BIAS for single-ended signals.46L1_LLeft-Channel 1 Low Terminal Input. Connect the source between L1_H and L1_L for differential
signals. Connect L1_L to BIAS for single-ended signals.47L2_LLeft-Channel 2 Low Terminal Input. Connect the source between L2_H and L2_L for differential
signals. Connect L2_L to BIAS for single-ended signals.48L2_HLeft-Channel 2 High Terminal Input. Connect the source between L2_H and L2_L for differential
signals. Connect the source to L2_H and tie L2_L to BIAS for single-ended signals.1LMRLeft Minus Right Output Signal. LMR output provides a signal that is the difference of left and
right input signals. See the Ambience Control section for more details.2AMBLI
Ambience Left-Channel Input. AMBLI provides the proper ambient effect at LOUT based on the
transfer function implemented between LMR and AMBLI. See the Ambience Control section for
more details.3CTL1Left-Channel Treble Tone Control Capacitor Terminal 1. Connect a capacitor between CTL1 and
CTL2 to set the treble cutoff frequency. See the Tone Control section for more details.4CTL2Left-Channel Treble Tone Control Capacitor Terminal 2. Connect a capacitor between CTL2 and
CTL1 to set the treble cutoff frequency. See the Tone Control section for more details.5CBL1Left-Channel Bass Tone Control Capacitor Terminal 1. Connect a capacitor between CBL1 and
CBL2 to set the bass cutoff frequency. See the Tone Control section for more details.6CBL2Left-Channel Bass Tone Control Capacitor Terminal 2. Connect a capacitor between CBL2 and
CBL1 to set the bass cutoff frequency. See the Tone Control section for more details.7LOUTLeft-Channel Output8CLSN
Subwoofer Left-Channel Highpass Filter Capacitor Negative Terminal. Connect a capacitor
between CLSN and CLSP to set the highpass cutoff frequency at SUBOUT. See the Subwoofer
Ouput section for more details.9CLSP
Subwoofer Left-Channel Highpass Filter Capacitor Positive Terminal. Connect a capacitor between CLSP and CLSN to set the highpass ilter cutoff frequency at SUBOUT. See the
Subwoofer Ouput section for more details.10SUBOUTSubwoofer Output. Connect a capacitor from SUBOUT to CSUB to set the lowpass ilter cutoff
frequency at SUBOUT. See the Subwoofer Ouput section for more details.11CSUBSubwoofer Lowpass Filter Capacitor Terminal. Connect a ilter capacitor between CSUB and SUBOUT to set the lowpass ilter cutoff frequency. See the Subwoofer Ouput section for more
details.
18, 3212, 26I.C.Internally Connected. Connect to DGND.
MAX5406Audio Processor with Pushbutton Interface
Pin Description
PINNAMEFUNCTION
TSSOPTQFN13MUTE
Active-Low Mute Control Input. Toggles state between muted and not muted. When in the mute
state, all wipers are moved to the low end of the volume potentiometers. The last state is restored
when MUTE is toggled again. The power-on state is not muted. MUTE is internally pulled up with50kΩ to VLOGIC.14VOLDN
Active-Low Downward Volume Control Input. Press VOLDN to decrease the volume. This
simultaneously moves left and right volume wipers towards higher attenuation. VOLDN is internally pulled up with 50kΩ to VLOGIC.15VOLUP
Active-Low Upward Volume Control Input. Press VOLUP to increase the volume. This
simultaneously moves the left and right volume wipers towards the the lower attenuation.
VOLUP is internally pulled up with 50kΩ to VLOGIC.16BALLActive-Low Left Balance Control Input. Press BALL to move the balance towards the left channel.
BALL is internally pulled up with 50kΩ to VLOGIC.17BALRActive-Low Right Balance Control Input. Press BALR to move the balance towards the right
channel. BALR is internally pulled up with 50kΩ to VLOGIC.18DGNDDigital Ground19VLOGICDigital Power-Supply Input. Bypass with 0.1µF to DGND.20SHDN
Active-Low Shutdown Control Input. In shutdown mode, the MAX5406 stores every wiper’s last
position. Each wiper moves to the highest attenuation level of its corresponding potentiometer.
Terminating shutdown mode restores every wiper to its previous setting. In shutdown, the
MAX5406 does not acknowledge any pushbutton command.21BASSDN
Active-Low Downward Bass Control Input. Press BASSDN to decrease bass boost. Bass boost
emphasizes the signal’s low-frequency components. BASSDN is internally pulled up with 50kΩ to
VLOGIC. To implement a bass-boost button, connect BASSDN to BASSUP. Presses then toggle the state between lat and full bass boost on each button press.22BASSUP
Active-Low Upward Bass Control Input. Press BASSUP to increase bass boost. Bass boost
emphasizes the signal’s low frequency components. BASSUP is internally pulled up with 50kΩ to
VLOGIC. To implement a bass-boost button, connect BASSUP to BASSDN. Presses then toggle the state between lat and full bass boost on each button press.23TREBDN
Active-Low Downward Treble Control Input. Press TREBDN to decrease the treble boost. Treble
boost emphasizes the signal’s high-frequency components. TREBDN is internally pulled up with50kΩ to VLOGIC.24TREBUP
Active-Low Upward Treble Control Input. Press TREBUP to increase the treble boost. Treble
boost emphasizes the signal’s high-frequency components. TREBUP is internally pulled up with 50kΩ to VLOGIC.25AMBActive-Low Ambience Switch Control Input. Drive AMB low to toggle on/off the ambience
function. AMB is internally pulled up with 50kΩ to VLOGIC.27CRSN
Subwoofer Right-Channel Highpass Filter Capacitor Negative Terminal. Connect a capacitor
between CRSN and CRSP to set the highpass cutoff frequency at SUBOUT. See the Subwoofer
Ouput section for more details.28CRSP
Subwoofer Right-Channel Highpass Filter Capacitor Positive Terminal. Connect a capacitor
between CRSP and CRSN to set the highpass cutoff frequency at SUBOUT. See the Subwoofer
Ouput section for more details.29ROUTRight-Channel Output
MAX5406Audio Processor with Pushbutton Interface
Pin Description (continued)
PINNAMEFUNCTION
TSSOPTQFN30CBR2
Right-Channel Bass Tone Control Capacitor Terminal 2. Connect a nonpolorized capacitor
between CBR2 and CBR1 to set the bass cutoff frequency. See the Tone Control section for
more details.31CBR1Right-Channel Bass Tone Control Capacitor Terminal 1. Connect a capacitor between CBR1 and
CBR2 to set the bass cutoff frequency. See the Tone Control section for more detail.32CTR2Right-Channel Treble Tone Control Capacitor Terminal 2. Connect a capacitor between CTR2
and CTR1 to set the treble cutoff frequency. See the Tone Control section for more details.33CTR1Right-Channel Treble Tone Control Capacitor Terminal 1. Connect a capacitor between CTR1
and CTR2 to set the treble cutoff frequency. See the Tone Control section for more details.34AMBRIAmbience Right-Channel Input. AMBRI provides the proper ambient effect at ROUT based on the
gain between LPR and AMBRI. See the Ambience Control section for more details.35LPRLeft Plus Right Output Signal. LPR output provides a signal that is a combination of the left and
right input signals. See the Ambience Control section for more details.36VDDPositive Analog Supply Voltage. Bypass with a 0.1µF capacitor to system analog ground.37R2_HRight-Channel High Terminal 2. Connect the source between R2_H and R2_L for differential
signal. Connect the source to R2_H and tie R2_L to BIAS for single-ended signals.38R2_LRight-Channel Low Terminal 2. Connect the source between R2_H and R2_L for differential
signal. Connect R2_L to BIAS for single-ended signals.39R1_LRight-Channel Low Terminal 1. Connect the source between R1_H and R1_L for differential
signal. Connect R1_L to BIAS for single-ended signals.40R1_HRight-Channel High Terminal 1. Connect the source between R1_H and R1_L for differential
signal. Connect the source to R1_H and tie R1_L to BIAS for single-ended signals.41CMSNSCommon-Mode Voltage Sense. Connect to VDD to disable the internal bias generator and drive
BIAS with external source to set output DC level.42BIAS
Internally Generated Bias Voltage. Connect CMSNS to VSS to enable the internally generated
VBIAS. VBIAS = (VDD + VSS)/2. Connect a 0.1µF capacitor between BIAS and system analog
ground as close to the device as possible. Do not use BIAS to drive external circuitry.
MAX5406Audio Processor with Pushbutton Interface
Pin Description (continued)
