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MAX9723BEBE+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P25
MAX9723
Stereo DirectDrive Headphone Amplifier
with BassMax, Volume Control, and I
2
C
4 _______________________________________________________________________________________
TIMING CHARACTERISTICS
(V
DD
= SHDN = 3V, PGND = SGND = 0V, C1 = C2 = 1µF, BB_ = 0V, gain = 0dB, maximum volume, BassMax disabled. Load connect-
ed between OUT_ and SGND where specified. T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C, see
Timing Diagram.) (Notes 1, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Serial Clock Frequency f
SCL
0
400
kHz
Bus Free Time Between a STOP
and a START Condition
t
BUF
1.3 µs
START Condition Hold Time
t
HD:STA
0.6 µs
Low Period of the SCL Clock t
LOW
1.3 µs
High Period of the SCL Clock t
HIGH
0.6 µs
Setup Time for a Repeated
START Condition
t
SU:STA
0.6 µs
Data Hold Time
t
HD:DAT
0 0.9 µs
Data Setup Time
t
SU:DAT
100
ns
Maximum Rise Time of SDA and
SCL Signals
t
r
300
ns
Maximum Fall Time of SDA and
SCL Signals
t
f
300
ns
Setup Time for STOP Condition
t
SU:STO
0.6 µs
Pulse Width of Suppressed Spike
t
SP
100
ns
Maximum Capacitive Load for
Each Bus Line
C
L_BUS
400
pF
Note 1: All specifications are 100% tested at T
A
= +25°C. Temperature limits are guaranteed by design.
Note 2: Inputs AC-coupled to SGND.
Note 3: Guaranteed by design.
Note 4: Headphone mode testing performed with a 32Ω resistive load connected to GND. Mode transitions are controlled by
SHDN. The K
CP
level is calculated as: 20 x log [(level peak voltage during mode transition, no input signal)/(peak voltage
under normal operation at rated power)]. Units are expressed in dB.
Note 5: Output power MIN is specified at T
A
= +25°C.
MAX9723
Stereo DirectDrive Headphone Amplifier
with BassMax, Volume Control, and I
2
C
_______________________________________________________________________________________ 5
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9723 toc01
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.01
0.1
1
0.001
10 100k
V
DD
= 2.4V
R
L
= 16
Ω
P
OUT
= 10mW
P
OUT
= 25mW
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9723 toc02
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.01
0.1
1
0.001
10 100k
V
DD
= 2.4V
R
L
= 32
Ω
P
OUT
= 23mW
P
OUT
= 10mW
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9723 toc03
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.01
0.1
1
0.001
10 100k
V
DD
= 3V
R
L
= 16
Ω
P
OUT
= 37mW
P
OUT
= 20mW
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX9723 toc04
FREQUENCY (Hz)
THD+N (%)
10k1k100
0.01
0.1
1
0.001
10 100k
V
DD
= 3V
R
L
= 32
Ω
P
OUT
= 30mW
P
OUT
= 10mW
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9723 toc05
OUTPUT POWER (mW)
THD+N (%)
4020
0.01
0.1
1
10
100
0.001
060
V
DD
= 2.4V
R
L
= 16
Ω
f
IN
= 1kHz
f
IN
= 20Hz
f
IN
= 10kHz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9723 toc06
OUTPUT POWER (mW)
THD+N (%)
4020
0.01
0.1
1
10
100
0.001
060
V
DD
= 2.4V
R
L
= 32
Ω
f
IN
= 1kHz
f
IN
= 10kHz
f
IN
= 20Hz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9723 toc07
OUTPUT POWER (mW)
THD+N (%)
80604020
0.01
0.1
1
10
100
0.001
0 100
V
DD
= 3V
R
L
= 16
Ω
f
IN
= 10kHz
f
IN
= 1kHz
f
IN
= 20Hz
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. OUTPUT POWER
MAX9723 toc08
OUTPUT POWER (mW)
THD+N (%)
80604020
0.01
0.1
1
10
100
0.001
0100
V
DD
= 3V
R
L
= 32
Ω
f
IN
= 10kHz
f
IN
= 1kHz
f
IN
= 20Hz
0
40
60
80
100
120
140
160
180
0 20406080
POWER DISSIPATION
vs. OUTPUT POWER
MAX9723 toc09
OUTPUT POWER (mW)
POWER DISSIPATION (mW)
20
V
DD
= 2.4V
f
IN
= 1kHz
P
OUT
= P
OUTL
+ P
OUTR
OUTPUTS IN PHASE
R
L
= 32Ω
R
L
= 16Ω
Typical Operating Characteristics
(V
DD
= SHDN = 3V, PGND = SGND = 0V, C1 = C2 = 1µF, BB_ = 0V, gain = 0dB, maximum volume, BassMax disabled. Load con-
nected between OUT_ and SGND where specified. Outputs in phase, both channels loaded. T
A
= +25°C, unless otherwise noted.)
(See Functional Diagram/Typical Operating Circuit)
MAX9723
Stereo DirectDrive Headphone Amplifier
with BassMax, Volume Control, and I
2
C
6 _______________________________________________________________________________________
0
100
50
200
150
250
300
0406020 80 100 120
POWER DISSIPATION
vs. OUTPUT POWER
MAX9723 toc10
OUTPUT POWER (mW)
POWER DISSIPATION (mW)
R
L
= 16Ω
V
DD
= 3V
f
IN
= 1kHz
P
OUT
= P
OUTL
+ P
OUTR
OUTPUTS IN PHASE
R
L
= 32Ω
OUTPUT POWER
vs. LOAD RESISTANCE
MAX9723 toc11
LOAD RESISTANCE (
Ω
)
OUTPUT POWER (mW)
100
10
20
30
40
50
60
70
80
0
10 1k
V
DD
= 2.4V
f
IN
= 1kHz
THD+N = 10%
THD+N = 1%
OUTPUT POWER
vs. LOAD RESISTANCE
MAX9723 toc12
LOAD RESISTANCE (
Ω
)
OUTPUT POWER (mW)
100
10
20
30
40
50
60
70
80
90
100
0
10 1k
V
DD
= 3V
f
IN
= 1kHz
THD+N = 10%
THD+N = 1%
OUTPUT POWER
vs. SUPPLY VOLTAGE
MAX9723 toc13
SUPPLY VOLTAGE (V)
OUTPUT POWER (mW)
3.43.22.8 3.02.2 2.4 2.62.0
10
20
30
40
50
60
70
80
90
100
0
1.8 3.6
THD+N = 10%
THD+N = 1%
f
IN
= 1kHz
R
L
= 16
Ω
20
40
60
80
100
120
140
0
OUTPUT POWER
vs. SUPPLY VOLTAGE
MAX9723 toc14
SUPPLY VOLTAGE (V)
OUTPUT POWER (mW)
3.43.22.8 3.02.2 2.4 2.62.01.8 3.6
THD+N = 10%
THD+N = 1%
f
IN
= 1kHz
R
L
= 32Ω
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9723 toc15
FREQUENCY (Hz)
PSRR (dB)
10k1k100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
10 100k
R
L
= 32
Ω
Typical Operating Characteristics (continued)
(V
DD
= SHDN = 3V, PGND = SGND = 0V, C1 = C2 = 1µF, BB_ = 0V, gain = 0dB, maximum volume, BassMax disabled. Load con-
nected between OUT_ and SGND where specified. Outputs in phase, both channels loaded. T
A
= +25°C, unless otherwise noted.)
(See Functional Diagram/Typical Operating Circuit)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P25

MAX9723BEBE+T

Mfr. #:
Buy MAX9723BEBE+T
Manufacturer:
Maxim Integrated
Description:
Audio Amplifiers Stereo DirectDrive Headphone Amplifier
Lifecycle:
New from this manufacturer.
Delivery:
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