Junction Temperature .................................................+150NC
Operating Temperature Range .......................... -40NC to +85NC
Storage Temperature Range............................ -65NC to +150NC
Soldering Temperature (reflow) ......................................+260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion 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.
PACKAGE THERMAL CHARACTERISTICS (Note 1)
Junction-to-Ambient Thermal Resistance (B
JA
) ..............73NC/W
Junction-to-Case Thermal Resistance (B
CA
) ..................30NC/W
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to
www.maxim-ic.com/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(V
PVIN
= 1.8V, V
PGND
= V
GND
= 0V, V
SHDN
= 1.8V, C1 = C2 = C3 = 1FF, C4 = 10FF, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25NC.) (Note 2)
PARAMETER
POWER SUPPLY
Supply Voltage Range
UVLO Rising
UVLO Falling
Quiescent Supply Current
Shutdown Current
Turn-On Time
CHARGE PUMP
Oscillator Frequency
Oscillator Frequency
Oscillator Frequency
f
OSC1
f
OSC2
f
OSC3
V
OUT
= 0V, T
A
= +25NC
V
OUT
= 0.2V, R
L
=
J,
f
IN
= 1kHz
V
OUT
= 0.5V, R
L
=
J,
f
IN
= 1kHz
V
OUT
= 0.2V, R
L
=
J
V
OUT
= 0.5V, R
L
=
J
Negative Output Voltage
V
PVSS
V
OUT
= 0.2V, R
L
=
J
V
OUT
= 0.5V, R
L
=
J
R
L
=
J,
output voltage at which the
charge pump switches modes, V
OUT
rising, transition from 1/8 to normal
frequency
78
83
665
500
PVIN/2
PVIN
-PVIN/2
-PVIN
QPVIN
x
0.08
V
88
kHz
kHz
kHz
I
DD
I
SHDN
t
ON
Inputs grounded, T
A
= +25NC, no load
16I load, inputs grounded, T
A
= +25NC
V
SHDN
= 0V, T
A
= +25NC
1.36
PVIN
Guaranteed by PSRR
1.62
1.80
1.48
1.46
1.15
1.16
0.2
0.6
1
1.7
1.98
1.58
V
V
V
mA
FA
ms
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Positive Output Voltage
V
PVDD
V
Output Voltage Threshold
V
TH1
V
2
Low-Power, Low-Offset, Dual Mode, Class H
DirectDrive Headphone Amplifier
ELECTRICAL CHARACTERISTICS (continued)
(V
PVIN
= 1.8V, V
PGND
= V
GND
= 0V, V
SHDN
= 1.8V, C1 = C2 = C3 = 1FF, C4 = 10FF, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25NC) (Note 2)
PARAMETER
Output Voltage Threshold
SYMBOL
V
TH2
CONDITIONS
R
L
=
J,
output voltage at which the
charge pump switches modes, V
OUT
rising, transition from high-efficiency
mode to high-power mode
Time it takes for the charge pump to
transition from high-power mode to
high-efficiency mode; R
L
=
J
Time it takes for the charge pump to
transition from high-efficiency mode to high-
power mode (90% of its value); R
L
=
J
MAX97200A
MAX97200B
R
L
= 10kI, THD+N = 1%
R
L
= 10kI, THD+N = 10%
2.75
-0.17
MIN
TYP
QPVIN
x
0.24
MAX
UNITS
V
MAX97200
t
HOLD
Charge-Pump Mode Transition
Timeouts (Figure 2)
t
RISE
AMPLIFIER
Voltage Gain
Maximum Output Voltage
Channel-to-Channel Gain
Matching
Total Output Offset Voltage
Input Resistance
V
OS
R
IN
A
V
32
ms
20
Fs
2.92
0
1.295
1.44
Q0.1
3.09
+0.17
dB
V
PK
dB
T
A
= +25NC
MAX97200A
MAX97200B
V
PVDD
= 1.62V to 1.98V, T
A
= +25NC
f
IN
= 217Hz
100mV
P-P
ripple
f
IN
= 1kHz
f
IN
= 20kHz
R
L
= 10kI
6
7.2
62
Q0.1
10
12
83
96
94
61
0.16
34
45
1
0.02
0.003
0.008
5.6
4.7
105
Into shutdown
Out of shutdown
80
Q0.3
14
16.8
mV
kI
Power-Supply Rejection Ratio
PSRR
dB
Output Power
Line Output Voltage
Total Harmonic Distortion Plus
Noise
Output Noise
Signal-to-Noise Ratio
P
OUT
V
LINE
THD+N
THD+N = 1%
R
L
= 10kI
R
L
= 32I
R
L
= 16I
mW
V
RMS
%
R
L
= 16I, P
OUT
= 0.1mW, f
IN
= 1kHz (Note 3)
R
L
= 16I, P
OUT
= 10mW, f
IN
= 1kHz (Note 4)
R
L
= 10kI, V
OUT
= 1V, f
IN
= 1kHz (Note 4)
V
N
SNR
Inputs grounded, A-weighted, MAX97200A
Inputs grounded, A-weighted, MAX97200B
A-weighted, MAX97200B
R
L
= 32I, peak
voltage, A-weighted,
32 samples/second,
MAX97200B
FV
dB
Click-and-Pop Level
V
CP
dBV
68
100
200
dB
pF
Crosstalk
Maximum Capacitive Load
X
TALK
R
L
= 16I, 1kHz, P
OUT
= 5mW
3
Low-Power, Low-Offset, Dual Mode, Class H
DirectDrive Headphone Amplifier
MAX97200
ELECTRICAL CHARACTERISTICS (continued)
(V
PVIN
= 1.8V, V
PGND
= V
GND
= 0V, V
SHDN
= 1.8V, C1 = C2 = C3 = 1FF, C4 = 10FF, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25NC) (Note 2)
PARAMETER
DIGITAL INPUT (SHDN)
Input High Voltage
Input Low Voltage
Input Leakage Current
SYMBOL
V
IH
V
IL
I
IH
I
IL
V
SHDN
= 4V, T
A
= +25NC
V
SHDN
= 1.8V, T
A
= +25NC
V
SHDN
= 0V, T
A
= +25NC
-1
-1
-1
CONDITIONS
MIN
1.4
0.4
+1
+1
+1
FA
TYP
MAX
UNITS
V
V
Note 2:
All specifications are 100% tested at T
A
= +25NC. Temperature limits are guaranteed by design.
Note 3:
V
PVDD
= 0.9V, V
PVSS
= -0.9V.
Note 4:
V
PVDD
= 1.8V, V
PVSS
= -1.8V.
Typical Operating Characteristics
(V
PVIN
= 1.8V, V
PGND
= V
GND
= 0V, V
SHDN
= 1.8V, C1 = C2 = C3 = 1FF, C4 = 10FF, both channels driven in phase, T
A
= +25NC,
unless otherwise noted.)
THD+N vs. OUTPUT POWER
MAX97200 toc01
THD+N vs. OUTPUT POWER
MAX97200 toc02
THD+N vs. OUTPUT VOLTAGE
R
L
= 10kI
MAX97200 toc03
100
10
THD+N (%)
1
0.1
R
L
= 16I
100
10
THD+N (%)
1
0.1
0.01
R
L
= 32I
100
10
THD+N (%)
1
0.1
f
IN
= 100Hz
0.01
0.001
0
10
20
30
40
f
IN
= 1kHz
f
IN
= 6kHz
50
60
70
80
P
OUT
(mW)
f
IN
= 100Hz
f
IN
= 1kHz
f
IN
= 1kHz
0.01
f
IN
= 6kHz
0.001
f
IN
= 100Hz
0.001
0
10
20
30
P
OUT
(mW)
40
50
60
f
IN
= 6kHz
0
0.5
1.0
1.5
2.0
2.5
V
OUT
(V
RMS
)
THD+N vs. FREQUENCY
MAX97200 toc04
THD+N vs. FREQUENCY
MAX97200 toc05
THD+N vs. FREQUENCY
R
L
= 10kI
MAX97200 toc06
10
R
L
= 16I
10
R
L
= 32I
10
1
THD+N (%)
1
THD+N (%)
1
THD+N (%)
0.1
P
OUT
= 20mW
P
OUT
= 25mW
0.1
P
OUT
= 20mW
0.01
P
OUT
= 2mW
0.01
0.1
P
OUT
= 25mW
0.1
V
OUT
= 0.868V
RMS
0.01
V
OUT
= 0.316V
RMS
0.01
0.1
1
FREQUENCY (kHz)
10
100
V
OUT
= 1.12V
RMS
0.01
P
OUT
= 2mW
0.001
0.01
0.1
1
FREQUENCY (kHz)
10
100
0.001
0.001
1
FREQUENCY (kHz)
10
100
4
Low-Power, Low-Offset, Dual Mode, Class H
DirectDrive Headphone Amplifier
Typical Operating Characteristics (continued)
(V
PVIN
= 1.8V, V
PGND
= V
GND
= 0V, V
SHDN
= 1.8V, C1 = C2 = C3 = 1FF, C4 = 10FF, both channels driven in phase, T
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