max9746 Maxim Integrated Products, Inc., max9746 Datasheet - Page 2

• Manufacturer Part Number: max9746
• Description: Max9746 1.2w, Low-emi, Filterless, Class D Audio Amplifier
• Manufacturer: Maxim Integrated Products, Inc.

ABSOLUTE MAXIMUM RATINGS
V
PV
GND to PGND .......................................................-0.3V to +0.3V
All Other Pins to GND.................................-0.3V to (V
Continuous Current Into/Out of PV
Continuous Input Current (all other pins)..........................±20mA
Duration of OUT_ Short Circuit to GND or PV
Duration of Short Circuit Between OUT+ and OUT- ..Continuous
1.2W, Low-EMI, Filterless,
Class D Audio Amplifier
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.
ELECTRICAL CHARACTERISTICS
(V
T
2
GENERAL
Supply Voltage Range
Quiescent Current
Shutdown Current
Turn-On Time
Input Resistance
Input Bias Voltage
Voltage Gain
Output Offset Voltage
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
(Note 3)
Output Power
Total Harmonic Distortion
Plus Noise
Signal-to-Noise Ratio
Oscillator Frequency
DD
MIN
DD
DD
_______________________________________________________________________________________
to GND..............................................................................6V
to T
to PGND .........................................................................6V
= PV
MAX
PARAMETER
DD
, unless otherwise noted. Typical values are at T
=
SHDN = 3.3V, GND = PGND = 0V, SYNC = GND (FFM), R
DD
/PGND/OUT_ ........±600mA
SYMBOL
THD+N
CMRR
I
V
PSRR
P
SHDN
SNR
f
V
V
t
I
R
OSC
BIAS
A
ON
OUT
DD
DD
OS
IN
V
DD
........Continuous
Inferred from PSRR test
T
Either input
T
T
f
V
200mV
THD+N = 1%
f
FFM or SSM
V
SYNC = GND
SYNC = float
SYNC = V
IN
IN
A
A
MIN
DD
OUT
DD
= +25°C
= +25°C
= 1kHz, input referred
= 1kHz, either
= 2.5V to 5.5V, T
≤ T
= 2V
+ 0.3V)
P-P
A
DD
≤ T
ripple
RMS
A
(SSM mode)
= +25°C.) (Notes 1, 2)
MAX
CONDITIONS
Continuous Power Dissipation (T
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)
A
12-Bump UCSP (derate 6.1mW/°C above +70°C)........484mW
f
f
R
R
P
BW = 22Hz
to 22kHz
A-weighted
Reflow ..........................................................................+235°C
RIPPLE
RIPPLE
L
L
OUT
= +25°C
= 8Ω
= 8Ω,
L
= 125mW
= 217Hz
= 20kHz
= 8Ω, R
FFM
SSM
FFM
SSM
L
connected between OUT+ and OUT-, T
1280
MIN
0.73
980
2.5
12
50
A
= +70°C)
1100
1450
1220
±120
TYP
0.83
±11
530
0.1
0.1
30
20
12
72
70
72
55
89
87
92
90
4
MAX
±120
1220
1620
0.93
±80
5.5
5.2
10
UNITS
mW
kHz
mA
ms
mV
µA
kΩ
dB
dB
dB
dB
%
V
V
A
=