
1.2W, Low-EMI, Filterless,
Class D Audio Amplifier
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
V
DD
to GND..............................................................................6V
PV
DD
to PGND .........................................................................6V
GND to PGND .......................................................-0.3V to +0.3V
All Other Pins to GND.................................-0.3V to (V
DD
+ 0.3V)
Continuous Current Into/Out of PV
DD
/PGND/OUT_........
±
600mA
Continuous Input Current (all other pins)..........................
±
20mA
Duration of OUT_ Short Circuit to GND or PV
DD
........Continuous
Duration of Short Circuit Between OUT+ and OUT- ..Continuous
ELECTRICAL CHARACTERISTICS
(V
DD
= PV
DD
=
SHDN
= 3.3V
, GND = PGND = 0V, SYNC = GND (FFM), R
L
= 8
, R
L
connected between OUT+ and OUT-, T
A
=
T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 1, 2)
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.
Continuous Power Dissipation (T
A
= +70°C)
10-Pin TDFN (derate 24.4mW/°C above +70°C) .....1951.2mW
10-Pin μMAX (derate 5.6mW/
o
C above +70°C).........444.4mW
12-Bump UCSP (derate 6.1mW/°C above +70°C)........484mW
Junction Temperature......................................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
Bump Temperature (soldering)
Reflow ..........................................................................+235°C
M
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL
Supply Voltage Range
Quiescent Current
Shutdown Current
Turn-On Time
Input Resistance
Input Bias Voltage
V
DD
I
DD
I
SHDN
t
ON
R
IN
V
BIAS
Inferred from PSRR test
2.5
5.5
5.2
10
V
4
mA
μA
ms
k
V
0.1
30
20
0.83
6
12
15.6
20
±
11
T
A
= +25°C
Either input
MAX9700A
MAX9700B
MAX9700C
MAX9700D
T
A
= +25°C
T
MIN
≤
T
A
≤
T
MAX
f
IN
= 1kHz, input referred
V
DD
= 2.5V to 5.5V, T
A
= +25°C
12
0.73
0.93
Voltage Gain
A
V
dB
±80
±
120
Output Offset Voltage
V
OS
mV
Common-Mode Rejection Ratio
CMRR
72
70
72
55
450
800
dB
50
f
RIPPLE
= 217Hz
f
RIPPLE
= 20kHz
R
L
= 8
R
L
= 6
R
L
= 8
,
P
OUT
= 125mW
Power-Supply Rejection Ratio
(Note 3)
PSRR
200mV
P-P
ripple
dB
Output Power
P
OUT
THD+N = 1%
mW
0.01
Total Harmonic Distortion
Plus Noise
THD+N
f
IN
= 1kHz, either
FFM or SSM
R
L
= 6
,
P
OUT
= 125mW
0.01
%