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MAX9702 Datenblatt(Datasheet) 2 Page - Maxim Integrated Products

Teile-Nr. MAX9702
Beschreibung  1.8W, Filterless, Stereo, Class D Audio Power Amplifier and DirectDrive Stereo Headphone Amplifier
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Hersteller  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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1.8W, Filterless, Stereo, Class D Audio Power
Amplifier and DirectDrive Stereo Headphone Amplifier
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS (VDD = 3.3V)
(VDD = PVDD = CPVDD = SHDN = 3.3V, GND = PGND = CPGND = 0V, SYNC = VDD (SSM), speaker gain = +12dB, headphone gain
= +1dB. Speaker load RL connected between OUT+ and OUT-, unless otherwise noted, RL = ∞. Headphone load RLH connected
between HPR/HPL to GND. CBIAS = 1µF to GND, 1µF capacitor between C1P and C1N, CVSS = 1µF. TA = TMIN to TMAX, unless oth-
erwise noted. Typical values are at TA = +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.
VDD to GND ...........................................................................+6V
PVDD to PGND .......................................................................+6V
CPVDD to CPGND..................................................................+6V
CPVSS to VSS ......................................................................±0.3V
CPVSS to CPGND .....................................................-6V to +0.3V
VSS to CPGND..........................................................-6V to +0.3V
C1N .......................................(CPVSS - 0.3V) to (CPGND + 0.3V)
C1P.......................................(CPGND - 0.3V) to (CPVDD + 0.3V)
HP_ to GND ............................(CPVSS - 0.3V) to (CPVDD + 0.3V)
GND to PGND and CPGND................................................±0.3V
VDD to PVDD and CPVDD....................................................±0.3V
SDA, SCL to GND.....................................................-0.3V to +6V
All Other Pins to GND.................................-0.3V to (VDD + 0.3V)
Continuous Current In/Out of PVDD, PGND,
CPVDD, CPGND, OUT_ ..............................................±600mA
Continuous Current In/Out of HP_ ..................................±120mA
Continuous Input Current CPVSS....................................+260mA
Continuous Input Current (all other pins) .........................±20mA
Duration of OUT_ Short Circuit to GND or PVDD .........Continuous
Duration of Short Circuit Between OUT__ ..................Continuous
Duration of HP_ Short Circuit to GND
or PVDD ..................................................................Continuous
Continuous Power Dissipation (TA = +70°C)
28-Pin Thin QFN (derate 21.3mW/°C above +70°C)....1702mW
28-Pin TSSOP (derate 12.8mW/°C above +70°C) .....1026mW
Junction Temperature ......................................................+150°C
Operating Temperature Range ...........................-40oC to +85°C
Storage Temperature Range .............................-65oC to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
GENERAL
Supply Voltage Range
VDD
Inferred from PSRR test
2.5
5.5
V
HPS = GND, speaker mode
10
15
mA
Quiescent Current
IDD
HPS = VDD, headphone mode
7
11
mA
Hard shutdown,
SHDN = GND
0.1
10
Shutdown Current
ISHDN
Soft shutdown (see I
2C section)
22
30
µA
Stereo left and right
16.5
24
31.5
Input Resistance
RIN
Mono channel
8.4
12
15.6
k
Debounced Delay
tDEBOUNCE
Delay from HPS transition to
headphone/speaker turn-on
65
ms
HPS = GND (SP mode)
85
Turn-On Time
tON
Time from
SHDN
transition to full
operation
HPS = VDD (HP mode)
85
ms
Turn-Off Time
tOFF
0ms
Input Bias Voltage
VBIAS
1.125
1.25
1.375
V
SPEAKER AMPLIFIERS (HPS = GND)
TA = +25°C
±9
±40
Output Offset Voltage
VOS
TMIN to TMAX
±50
mV
VDD = 2.5V to 5.5V
54
75
fRIPPLE = 217Hz
75
Power-Supply Rejection Ratio
(Note 3)
PSRR
100mVP-P ripple,
VIN = 0V, TA = +25°C
fRIPPLE = 20kHz
55
dB




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