Rainbow Electronics MAX5406 User Manual
General Description
The MAX5406 stereo audio processor provides a complete audio solution with volume, balance, bass, and
treble controls. It features dual 32-tap logarithmic
potentiometers 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 SmartWiper™ 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 generated 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 integrated 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 pseudostereo 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
Automotive Rear-Seat Entertainment (RSE)
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, 25µV
RMS
(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
MAX5406
Audio Processor with Pushbutton Interface
________________________________________________________________ Maxim Integrated Products 1
19-3817; Rev 0; 5/06
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Ordering Information
PART
TEMP RANGE
PIN-
PKG
CODE
MAX5406EUM
48 TSSOP U48-1
MAX5406ETM*
48 TQFN T4877-6
SmartWiper is a trademark of Maxim Integrated Products, Inc.
*Future product—contact factory for availability.
Pin Configurations appear at end of data sheet.
PACKAGE
-40°C to +85°C
-40°C to +85°C
MAX5406
Audio Processor with Pushbutton Interface
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
L1_H, L1_L, L2_H, L2_L
to V
SS
.......................-0.3V to the lower of (VDD+ 0.3V) or +6V
R1_H, R1_L, R2_H, R2_L
to V
SS
.......................-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 (V
LOGIC
+ 0.3V) or +6V
CTL_, CTR_, CBL_, CBR_, CLS_, CRS_, CSUB, CBIAS, CMSNS,
AMBLI, AMBRI, BIAS
to V
SS
.......................-0.3V to the lower of (VDD+ 0.3V) or +6V
LOUT, ROUT, SUBOUT, LMR,
LPR to V
SS
................-0.3V to the lower of (VDD+ 0.3V) or +6V
V
DD
to VSS................................................................-0.3V to +6V
V
DD
to V
LOGIC
........................................................................±6V
V
LOGIC
to DGND ......................................................-0.3V to +6V
DGND to V
SS
............................................................-0.3V to +6V
LOUT, ROUT, SUBOUT Short Circuited to V
SS
.........Continuous
Continuous Power Dissipation (T
A
= +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
ELECTRICAL CHARACTERISTICS
(VDD= V
LOGIC
= +5.0V, VSS= 0, V
BIAS
= V
CMSNS
= V
DD
/ 2, DGND = 0, ambience disabled, V
AMBLI
= V
AMBRI
= V
BIAS, VR1_L
=
V
L1_L
= V
R2_L
= V
L2_L
= external V
BIAS
, C
CSUB
= 0.15µF, C
CLS
= C
CRS
= 1µF, C
CBL
= C
CBR
= 3.3nF, C
CTL
= C
CTR
= 4.7nF, C
BIAS
=
0.1µF, C
CBIAS
= 50µF (see the Typical Application Circuit), TA= T
MIN
to T
MAX
unless otherwise specified. Typical values are at TA=
+25°C). (Note1)
PARAMETER
SYMBOL
CONDITIONS
UNITS
R
INH
810
Signal-Inputs Input Resistance R
IN
With respect to
V
BIAS
R
INL
16 20
kΩ
Signal-Inputs Input Capacitance C
IN
With respect to V
BIAS
5pF
RF Rejection
2MHz to 2.4GHz two-tone test, 2/2.01MHz
input to 10kHz out
20 dBc
VDD = +5V, VSS = 0, VCM = V
BIAS
, gain
error ≤ -0.5dB
-4 +4
Differential Input Voltage Range V
IN
VDD = +2.7V, VSS = -2.7V, VCM = V
BIAS
,
gain error ≤ -0.5dB
V
VDD = +5V, VSS = 0, V
BIAS
= VDD / 2,
V
DIFF
= 100mV
Common-Mode Input Voltage Range
V
CM
VDD = +2.7V, VSS = -2.7V, V
BIAS
= 0,
V
DIFF
= 100mV
V
Bias Voltage V
BIAS
Internally generated (V
CMSNS
= VSS)(V
DD
+ VSS) / 2 V
Bias-Voltage Input Current
L_ _H
=
R_ _H
=
V
BIAS,
L_ _L = R_ _L =
open, V
CMSNS = VDD
1mA
AUDIO PROCESSING FUNCTIONS
Maximum Balance Difference (Note 2) 10 12 14 dB
Minimum Balance Difference (Note 2) 0 dB
Balance Resolution (Note 2) 2 dB
Maximum Volume Attenuation (Note 2) -63 -62 -59 dB
Minimum Volume Attenuation (Note 2)
0
dB
Volume Resolution (Note 2) 2 dB
Volume-Control Steps (Note 2) 32
steps
MIN TYP MAX
-4.5 +4.5
VSS + 0.5V VDD - 0.5V
-0.5
+0.5
MAX5406
Audio Processor with Pushbutton Interface
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(VDD= V
LOGIC
= +5.0V, VSS= 0, V
BIAS
= V
CMSNS
= V
DD
/ 2, DGND = 0, ambience disabled, V
AMBLI
= V
AMBRI
= V
BIAS, VR1_L
=
V
L1_L
= V
R2_L
= V
L2_L
= external V
BIAS
, C
CSUB
= 0.15µF, C
CLS
= C
CRS
= 1µF, C
CBL
= C
CBR
= 3.3nF, C
CTL
= C
CTR
= 4.7nF, C
BIAS
=
0.1µF, C
CBIAS
= 50µF (see the Typical Application Circuit), TA= T
MIN
to T
MAX
unless otherwise specified. Typical values are at TA=
+25°C). (Note1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Gain Matching of Input 1 to Input
2 of Each Channel
Volume = 0dB (Note 2)
dB
Gai n M atchi ng of Left to Ri g ht
C hannel
Volume = 0dB (Note 2)
dB
Bass-Boost Range
f
BASS
= 1kHz, treble = 0dB,
C
CB_
= open, C
CT_
= open (Note 3)
10 14 dB
Bass-Cut Range
f
BASS
= 1kHz, treble = 0dB,
C
CB_
= open, C
CT_
= open (Note 3)
10 14 dB
Treble-Boost Range
f
TREBLE
= 1kHz, bass = 0dB,
C
CB_
= open, C
CT_
= short (Note 3)
10 15 dB
Treble-Cut Range
f
TREBLE
= 1kHz, bass = 0dB,
C
CB_
= open, C
CT_
= short (Note 3)
10 15 dB
Bass-Boost/-Cut Steps Max boost to max cut 21
steps
Treble-Boost/-Cut Steps Max boost to max cut 21
steps
Bass End-to-End Resistance R
BPOT
kΩ
Treble End-to-End Resistance R
TPOT
17 kΩ
Bass Series Resistance R
B
40 kΩ
Treble Series Resistance R
T
3.5 kΩ
Mute Attenuation -90 dB
AC PERFORMANCE (VIN = 1V
P-P
, RL = 10kΩ, VDD = +2.7V, VSS = -2.7V, volume = 0dB, treble = bass = 0dB)
Total H ar m oni c D i stor ti on P l us
N oi se
THD+N (Notes 4, 5)
%
Interchannel Crosstalk L to R or R to L -70 dB
ROUT/LOUT OUTPUTS
Maximum Load Capacitance C
LOAD
pF
Output-Voltage Swing
RL = 10kΩ, VDD = +2.7V, VSS = -2.7V
V
Output Offset Voltage V
OOS
VDD = +2.7V, VSS = -2.7V, volume = 0dB,
R
L
= 10kΩ, inputs = V
BIAS
-30 0
mV
Short-Circuit Output Current I
SC
Shorted to V
SS
15 mA
Output Resistance R
_OUTILOAD
= 100µA to 500µA 10 Ω
V
OUTP-P
-0.1 +0.1
-0.1 +0.1
-2.3 +2.3
116
0.02 0.05
100
+30
MAX5406
Audio Processor with Pushbutton Interface
4 _______________________________________________________________________________________
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
fBW = 20Hz to 20kHz, VIN = V
BIAS
,
mute on, noise measured at LOUT and
ROUT (Notes 2, 4, 5)
3.5 9.5
Output Noise e
n
fBW = 20Hz to 20kHz, VIN = V
BIAS
, mute
off, volume = 0dB, noise measured at
LOUT and ROUT (Notes 2, 4, 5)
25 35
µV
RMS
100mV
P-P
at 217Hz on V
DD
-70
Power-Supply Rejection Ratio PSRR
100mV
P-P
at 1kHz on V
DD
-65
dB
SUBWOOFER OUTPUT
Gain
(V
L1_H
- V
L1_L
) to (V
SUBOUT
- V
BIAS
),
volume = 0dB (Note 2)
-6 dB
Highpass Filter Cutoff Frequency
Volume = 0dB 15 Hz
Internal Highpass Cutoff
Resistance
R
_S
Figure 12
kΩ
Lowpass Filter Cutoff Frequency
Volume = 0dB
Hz
Internal Lowpass Cutoff
Resistance
R
SUB
Figure 12
kΩ
Maximum Load Capacitance
pF
Output-Voltage Swing
RL = 10kΩ, VDD = +2.7V, VSS = -2.7V
V
Output Offset Voltage
VDD = +2.7V, VSS = -2.7V, volume = 0dB,
R
L
= 10kΩ
-15 0
mV
Short-Circuit Output Current I
SUBSC
Shorted to V
SS
12 mA
Output Resistance
I
LOAD
= 100µA to 500µA 10 Ω
fBW = 20Hz to 20kHz, VIN = V
BIAS
,
mute on, noise measured at SUBOUT
(Notes 2, 4, 5)
911
Output Noise e
n
fBW = 20Hz to 20kHz, VIN = V
BIAS
,
volume = 0dB, mute off, noise measured at
SUBOUT (Notes 2, 4, 5)
25 35
µV
RMS
100mV
P-P
at 217Hz on V
DD
-70
Power-Supply Rejection Ratio PSRR
100mV
P-P
at 1kHz on V
DD
-65
dB
PUSHBUTTON CONTACT INPUTS (MUTE, AMB, VOLUP, VOLDN, BALL, BALR, BASSUP, BASSDN, TREBUP, TREBDN)
Internal Pullup Resistor R
PU
50 kΩ
Single-Pulse Input Low Time t
LPW
Figures 2a, 11a, 11b 30 ms
Repetitive Input Pulse Separation
Time
t
HPW
Figure 2b, 11a, 11b 40 ms
First Autoincrement Point t
A1
Figure 3 1 s
First Autoincrement Rate f
A1
Figure 3 4 Hz
Second Autoincrement Point t
A2
Figure 3 4 s
Second Autoincrement Rate f
A2
Figure 3 16 Hz
ELECTRICAL CHARACTERISTICS (continued)
(VDD= V
LOGIC
= +5.0V, VSS= 0, V
BIAS
= V
CMSNS
= V
DD
/ 2, DGND = 0, ambience disabled, V
AMBLI
= V
AMBRI
= V
BIAS, VR1_L
=
V
L1_L
= V
R2_L
= V
L2_L
= external V
BIAS
, C
CSUB
= 0.15µF, C
CLS
= C
CRS
= 1µF, C
CBL
= C
CBR
= 3.3nF, C
CTL
= C
CTR
= 4.7nF, C
BIAS
=
0.1µF, C
CBIAS
= 50µF (see the Typical Application Circuit), TA= T
MIN
to T
MAX
unless otherwise specified. Typical values are at TA=
+25°C). (Note1)
13.8
100
10.6
CSUBLOAD 100
V
SUBOUTP-P
V
SUBOOS
-2.3 +2.3
R
SUBOUT
+15
MAX5406
Audio Processor with Pushbutton Interface
_______________________________________________________________________________________ 5
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DIGITAL INPUTS (V
LOGIC
> 3.6V) (MUTE, AMB, VOLUP, VOLDN, BALL, BALR, BASSUP, BASSDN, TREBUP, TREBDN)
Input-Voltage High V
IH
2.4 V
Input-Voltage Low V
IL
0.8 V
SHDN Input-Voltage High
3.4 V
SHDN Input-Voltage Low
0.8 V
Input Leakage Current ±5 µA
Input Capacitance 5pF
D IG IT A L IN PU T S ( V
L OG IC
≤ 3. 6 V) ( M UT E, A M B , VO L UP, VO L DN , B AL L , B AL R, B ASSU P, B ASSD N, T REBU P, T REBD N)
Input-Voltage High V
IH
2V
Input-Voltage Low V
IL
0.6 V
SHDN Input-Voltage High
2V
SHDN Input-Voltage Low
0.6 V
Input Leakage Current ±5 µA
Input Capacitance 5pF
TIMING CHARACTERISTICS
Wiper Settling Time t
WS
Click/pop suppression inactive, Figures 2a,
11a, 11b
45 ms
POWER SUPPLIES (V
CMSNS
= VSS, internal bias enabled)
Supply-Voltage Difference
V
Positive Analog Supply Voltage V
DD
V
Negative Analog Supply Voltage
V
SS
0V
Dual-Supply Positive Supply
Voltage
V
DD
VSS = -2.7V 0
V
Active Positive Supply Current I
DD
No signal, all logic inputs pulled high to
RL = 10kΩ (Note 6)
10 13 mA
No signal, all logic inputs connected to
DGND or V
LOGIC
, VDD = +5V, VSS = 0
-13 -10
Active Negative Supply Current
(Note 6)
I
SS
No signal, all logic inputs connected to
DGND or V
LOGIC
, VDD = +2.7V,
V
SS
= -2.7V
-13 -10
mA
No signal, VDD = 5V, VSS = 0, all logic
inputs connected to DGND or V
LOGIC
,
SHDN = DGND
0.2
0.2
S hutd ow n S up p l y C ur r ent ( N ote 6)
I
SHDN
No signal, VDD = +2.7V, VSS = -2.7V,
all logic at DGND or V
LOGIC
, SHDN
= DGND
50
µA
ELECTRICAL CHARACTERISTICS (continued)
(VDD= V
LOGIC
= +5.0V, VSS= 0, V
BIAS
= V
CMSNS
= V
DD
/ 2, DGND = 0, ambience disabled, V
AMBLI
= V
AMBRI
= V
BIAS, VR1_L
=
V
L1_L
= V
R2_L
= V
L2_L
= external V
BIAS
, C
CSUB
= 0.15µF, C
CLS
= C
CRS
= 1µF, C
CBL
= C
CBR
= 3.3nF, C
CTL
= C
CTR
= 4.7nF, C
BIAS
=
0.1µF, C
CBIAS
= 50µF (see the Typical Application Circuit), TA= T
MIN
to T
MAX
unless otherwise specified. Typical values are at TA=
+25°C). (Note1)
V
IHSHDN
V
ILSHDN
V
IHSHDN
V
ILSHDN
VDD - V
SS
V
or unconnected, SHDN = V
LOGIC
+2.7 +5.5
+5.5
-2.7
+2.7
,
LOGIC
I
DD
I
SS
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
ATTENUATION vs. TAP POSITION
TAP POSITION
ATTENUATION (dB)
MAX5406 toc01a
0 4 8 12 16 20 24 28 32
-70
-60
-50
-40
-30
-20
-10
0
VDD = V
LOGIC
= 5V, VSS = 0
VOLUP = 0dB
ATTENUATION vs. TAP POSITION
TAP POSITION
ATTENUATION (dB)
MAX5406 toc01b
0 4 8 12 16 20 24 28 32
-70
-60
-50
-40
-30
-20
-10
0
VDD = V
LOGIC
= 2.7V, VSS = -2.7V
BAXANDALL CURVE
FREQUENCY (Hz)
GAIN (dB)
MAX5406 toc02a
-15
-10
-5
0
5
10
15
10 100 1000 10,000 100,000
VDD = V
LOGIC
= 5V, VSS = 0
TREBLE = BASS
C
CB_
= 10nF
C
CT_
= 2.2nF
MAX5406
Audio Processor with Pushbutton Interface
6 _______________________________________________________________________________________
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. C
CB_
= open, CCT_ = short, left input signal = right input signal = +2V.
Note 3: See Tables 3 and 4 and Figure 7. V
DD
= +2.7V, V
SS
= -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. t
WU
is the time required for _OUT to reach 0dB after SHDN goes high.
PARAMETER
CONDITIONS
UNITS
Power-Up Time t
PU
Power first applied, _OUT = -20dB 1 s
Wake-Up Time t
WU
From shutdown (Note 7) 1 s
Logic Supply Voltage V
LOGIC
DGND = 0, V
LOGIC
≤ V
DD
V
Logic Active Supply Current I
LOGIC
No signal, one button pressed, remaining
logic inputs connected to V
LOGIC
or
unconnected
µA
Logic Shutdown Supply Current
No signal, all logic inputs connected to
V
LOGIC
or unconnected, SHDN = DGND
(Note 6)
0.2 2 µA
ELECTRICAL CHARACTERISTICS (continued)
(VDD= V
LOGIC
= +5.0V, VSS= 0, V
BIAS
= V
CMSNS
= V
DD
/ 2, DGND = 0, ambience disabled, V
AMBLI
= V
AMBRI
= V
BIAS, VR1_L
=
V
L1_L
= V
R2_L
= V
L2_L
= external V
BIAS
, C
CSUB
= 0.15µF, C
CLS
= C
CRS
= 1µF, C
CBL
= C
CBR
= 3.3nF, C
CTL
= C
CTR
= 4.7nF, C
BIAS
=
0.1µF, C
CBIAS
= 50µF (see the Typical Application Circuit), TA= T
MIN
to T
MAX
unless otherwise specified. Typical values are at TA=
+25°C). (Note1)
SYMBOL
MIN TYP MAX
+2.7 V
DD
150
MAX5406
Audio Processor with Pushbutton Interface
_______________________________________________________________________________________ 7
BAXANDALL CURVE
FREQUENCY (Hz)
GAIN (dB)
MAX5406 toc02b
-20
-15
-10
-5
0
5
10
15
20
10 100 1000 10,000 100,000
VDD = V
LOGIC
= 2.7V, VSS = -2.7V
V
IN
= 0.5V
P-P
BASS = TREBLE
C
CB_
= 10nF
C
CT_
= 2.2nF
BAXANDALL CURVE
FREQUENCY (Hz)
GAIN (dB)
MAX5406 toc02c
-20
-15
-10
-5
0
5
10
15
10 100 1000 10,000 100,000
C
CB_
= 10nF
C
CT_
= 2.2nF
V
DD
= V
LOGIC
= 5V, VSS = 0
BASS = 0dB
BAXANDALL CURVE
FREQUENCY (Hz)
GAIN (dB)
MAX5406 toc02d
-20
-15
-10
-5
0
5
10
15
10 100 1000 10,000 100,000
C
CB_
= 10nF
C
CT_
= 2.2nF
V
DD
= V
LOGIC
=2.7V, VSS = -2.7V
V
IN
= 0.5V
P-P
BASS = 0dB
BAXANDALL CURVE
FREQUENCY (Hz)
GAIN (dB)
MAX5406 toc02e
-15
-10
-5
0
5
10
15
10 100 1000 10,000 100,000
C
CB_
= 10nF
C
CT_
= 2.2nF
V
DD
= V
LOGIC
= 5V, VSS = 0
TREBLE = 0dB
BAXANDALL CURVE
FREQUENCY (Hz)
GAIN (dB)
MAX5406 toc02f
-20
-15
-10
-5
0
5
10
15
20
10 100 1000 10,000 100,000
C
CB_
= 10nF
C
CT_
= 2.2nF
V
DD
= V
LOGIC
= 2.7V, VSS = -2.7V
V
IN
= 0.5V
P-P
TREBLE = 0dB
SINGLE-SUPPLY SUBOUT
FREQUENCY RESPONSE
FREQUENCY (Hz)
GAIN (dB)
MAX5406 toc03a
-70
-60
-50
-40
-30
-20
-10
0
10
10 100 1000 10,000 100,000
DUAL INPUTS
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
DUAL-SUPPLIES SUBOUT
FREQUENCY RESPONSE
FREQUENCY (Hz)
GAIN (dB)
MAX5406 toc03b
-60
-50
-40
-30
-20
-10
0
10
10 100 1000 10,000 100,000
DUAL INPUTS
VDD = V
LOGIC
= 2.7V, VSS = -2.7V
VOLUP = 0dB
LOUT FREQUENCY RESPONSE
FREQUENCY (Hz)
GAIN (dB)
MAX5406 toc03c
-35
-30
-25
-20
-15
-10
-5
0
5
10
10 100 1k 10k 100k 1M 10M
VDD = V
LOGIC
= 5V, VSS = 0
VOLUP = 0dB
DUAL-SUPPLIES LOUT
FREQUENCY RESPONSE
FREQUENCY (Hz)
GAIN (dB)
MAX5406 toc03d
-35
-30
-25
-20
-15
-10
-5
0
5
10
10 100 1k 10k 100k 1M 10M
VDD = V
LOGIC
= 2.7V, VSS = -2.7V
VOLUP = 0dB
MAX5406
Audio Processor with Pushbutton Interface
8 _______________________________________________________________________________________
TOTAL SUPPLY CURRENT
vs. TEMPERATURE (I
DD
+ I
LOGIC
)
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
MAX5406 toc06a
-40 -15 10 35 60 85
8.0
8.5
9.0
9.5
10.0
10.5
11.0
11.5
12.0
VDD = V
LOGIC
= 5V, VSS = 0
INACTIVE MODE, NO BUTTON PUSHED
ACTIVE MODE, ONE BUTTON PUSHED
TOTAL SUPPLY CURRENT
vs. TEMPERATURE (I
DD
+ I
LOGIC
)
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
MAX5406 toc06b
-40 -15 10 35 60 85
5
7
9
11
13
15
VDD = V
LOGIC
= 2.7V, VSS = -2.7V
TOTAL SUPPLY CURRENT: I
DD
+ I
LOGIC
ACTIVE MODE (ONE BUTTON PUSHED)
INACTIVE MODE (NO BUTTON PUSHED)
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
ROUT FREQUENCY RESPONSE
FREQUENCY (Hz)
GAIN (dB)
MAX5406 toco3e
-35
-30
-25
-20
-15
-10
-5
0
5
10 100 1k 10k 100k 1M 10M
VDD = V
LOGIC
= 5V, VSS = 0
VOLUP = 0dB
DUAL-SUPPLIES ROUT
FREQUENCY RESPONSE
FREQUENCY (Hz)
GAIN (dB)
MAX5406 toc03f
-35
-30
-25
-20
-15
-10
-5
0
5
10
10 100 1k 10k 100k 1M 10M
VDD = V
LOGIC
= 2.7V, VSS = -2.7V
VOLUP = 0dB
FREQUENCY (kHz)
PSRR (dB)
PSRR vs. FREQUENCY
10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
0.1
1 10 100 1,000
MAX5406 toc4b
VDD = V
LOGIC
= 2.7V, VSS = -2.7V
100mV
P-P
ON POSITIVE SUPPLY
FREQUENCY (kHz)
PSRR (dB)
PSRR vs. FREQUENCY
10
0
-10
-20
-30
-40
-50
-60
-70
-80
0.1
1 10 100 1,000
MAX5406 toc4c
VDD = V
LOGIC
= 2.7V, VSS = -2.7V
100mV
P-P
ON NEGATIVE SUPPLY
FREQUENCY (kHz)
PSRR (dB)
PSRR vs. FREQUENCY
0
-10
-20
-30
-40
-50
-60
-70
-80
0.1
1 10 100 1,000
MAX5406 toc4a
VDD = V
LOGIC
= 5V, VSS = 0
100mV
P-P
ON V
DD
0
1.5
1.0
0.5
2.5
2.0
4.5
4.0
3.5
3.0
5.0
2.7 3.1 3.5 3.9 4.3 4.7 5.1 5.5
OUTPUT SWING
vs. SUPPLY VOLTAGE
MAX5406 toc5a
VDD (V)
OUTPUT SWING (V)
SINGLE-SUPPLY OPERATION
V
DD
= V
LOGIC,
THD = 0.02% AT 1kHz
0
1.5
1.0
0.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
3.0 4.03.5 4.5 5.0 5.5
OUTPUT SWING
vs. SUPPLY VOLTAGE
MAX5406 toc5b
(VDD - VSS) (V)
OUTPUT SWING (V)
DUAL-SUPPLY OPERATION
V
LOGIC = VDD,
THD = 0.02% AT 1kHz
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