MAX9741 View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX9741 Datasheet PDF : 16 Pages
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12W+12W, Low-EMI, Spread-Spectrum,
Stereo, Class D Amplifier
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
VDD to PGND, AGND .............................................................30V
OUTR_, OUTL_, C1N..................................-0.3V to (VDD + 0.3V)
C1P............................................(VDD - 0.3V) to (CHOLD + 0.3V)
CHOLD ........................................................(VDD - 0.3V) to +40V
SHDN, FS_, G_ ...........................................................-6.3V to 8V
All Other Pins to GND.............................................-0.3V to +12V
Duration of OUTR_/OUTL_
Short Circuit to GND, VDD ......................................Continuous
Continuous Input Current (VDD, PGND) ..................................2A
Continuous Input Current (all other pins)..........................±20mA
Thermal Limits (Note 1)
Continuous Power Dissipation (TA = +70°C)
Single-Layer PC Board
56-Pin TQFN (derate 28.6mW/°C above +70°C) ............2.29W
θJA ................................................................................ 35°C/W
θJC............................................................................... 0.6°C/W
Continuous Power Dissipation (TA = +70°C)
Multiple-Layer PC Board
56-Pin TQFN (derate 47.6mW/°C above +70°C) ............3.81W
θJA................................................................................ 21°C/W
θJC............................................................................... 0.6°C/W
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
Note 1: Thermal performance of this device is highly dependant on PC board layout. See the Applications Information for more
detail.
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
(VDD = 18V, GND = PGND = 0V, SHDN ≥ VIH, AV = 16dB, CSS = CIN = 0.47µF, CREG = 0.01µF, C1 = 100nF, C2 = 1µF, FS1 = FS2 =
GND (fS = 670kHz), RL connected between OUTL+ and OUTL- and OUTR+ and OUTR-, TA = TMIN to TMAX, unless otherwise noted.
Typical values are at TA = +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
GENERAL
Supply Voltage Range
Quiescent Current
Shutdown Current
Turn-On Time
Amplifier Output Resistance in
Shutdown
VDD
IDD
ISHDN
tON
Inferred from PSRR test
RL = Open
CSS = 470nF
CSS = 180nF
SHDN = GND
10
25
V
26
37
mA
0.2
1.5
µA
100
ms
50
150
320
kΩ
Input Impedance
AV = 13dB
RIN
AV = 16dB
AV = 19.1dB
AV = 29.6dB
G1 = L, G2 = L
35
53
80
30
45
65
kΩ
23
36
55
10
14.3
22
29.4 29.6 29.8
Voltage Gain
AV
G1 = L, G2 = H
G1 = H, G2 = L
G1 = H, G2 = H
18.9
19.1
19.3
dB
12.8
13
13.2
15.9
16
16.3
Gain Matching
Output Offset Voltage
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
(Note 3)
VOS
CMRR
PSRR
Between channels
fIN = 1kHz, input referred
VDD = 10V to 25V
200mVP-P ripple
fRIPPLE = 1kHz
fRIPPLE = 20kHz
0.5
%
±5
±30
mV
60
dB
48
83
80
dB
60
2 _______________________________________________________________________________________
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