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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX9830 Datasheet

Mono 2W Class D Amplifier

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19-4806; Rev 1; 4/10
EVAALVUAAILTAIOBNLEKIT
Mono 2W Class D Amplifier
General Description
The MAX9830 mono 2W Class D amplifier provides
Class AB audio performance with Class D efficiency.
Active emissions limiting edge rate and overshoot con-
trol circuitry greatly reduces EMI. A filterless spread-
spectrum modulation scheme eliminates the need for
output filtering found in traditional Class D devices.
These features reduce application component count.
The MAX9830’s industry-leading 1.6mA at 5V, 1.2mA at
3.6V, quiescent current extends battery life in portable
applications.
The MAX9830 is available in an 8-pin TDFN (2mm x
2mm x 0.8mm) and is specified over the extended
-40°C to +85°C temperature range.
Features
o Industry-Leading Quiescent Current: 1.6mA at 5V,
1.2mA at 3.6V
o Spread Spectrum and Active Emissions Limiting
o Passes EMI Limit Unfiltered with Up to 24in
(61cm) of Speaker Cable
o Click-and-Pop Suppression
o Thermal and Overcurrent Protection
o Low 0.5µA Current Shutdown Mode
o Space-Saving, 2mm x 2mm x 0.8mm, 8-Pin TDFN
Package
Applications
Notebook and Netbook Computers
Cellular Phones
MP3 Players
Portable Audio Players
VoIP Phones
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX9830AETA+
-40°C to +85°C
8 TDFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
TOP VIEW
Pin Configuration
PVDD OUT+ OUT- PGND
8765
MAX9830
*EP
+
1 234
IN+ IN- SHDN N.C.
TDFN
2mm x 2mm x 0.8mm
*EP = EXPOSED PAD. CONNECT THE EP TO
PGND TO ENHANCE THERMAL DISSIPATION.
Typical Operating Circuit
0.47µF
0.47µF
+2.6V TO +5.5V
IN+ PVDD
IN- MAX9830
OUT+
SHDN
OUT-
N.C. PGND
0.1µF
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX9830 Datasheet

Mono 2W Class D Amplifier

No Preview Available !

Mono 2W Class D Amplifier
ABSOLUTE MAXIMUM RATINGS
Voltage
PVDD, IN+, IN-, SHDN, to PGND .........................-0.3V to +6V
OUT+, OUT- to PGND...........................-0.3V to VPVDD + 0.3V
Current
Continuous Current Into/Out of PVDD, PGND,
OUT+, OUT- ..............................................................±600mA
Continuous Input Current (all other pins) .....................±20mA
Duration of Short Circuit Between
OUT+, OUT-, and PVDD, PGND ............................Continuous
Continuous Power Dissipation for a Multilayer Board
(TA = +70°C)
8-Pin TDFN-EP (derate 11.9mW/°C) .........................953.5mW
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
Soldering Temperature (reflow) .......................................+260°C
Rate of Voltage Rise at PVDD .............................................1V/µs
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
(VPVDD = VSHDN = 5V, VPGND = 0V, RL = , unless otherwise specified. RL connected between OUT+ and OUT-, AC measurement
bandwidth 20Hz to 22kHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
SPEAKER AMPLIFIER
Voltage Range
PVDD Inferred from PSRR test
2.6 5.5 V
Quiescent Supply Current
Shutdown Supply Current
IDD
ISHDN
VPVDD = 5.0V
VPVDD = 3.6V
VSHDN = 0V, TA = +25°C
1.6 2.5
mA
1.2
0.5 10
µA
Turn-On Time
Bias Voltage
tON
VBIAS
1.9 4
1.31
ms
V
Maximum AC Input Voltage
Single ended
VIN Differential
1
2 VRMS
Input Resistance in Shutdown
RINSD
Between inputs
From inputs to PGND
85.6
k
43
Input Resistance
RIN
12 20
k
Voltage Gain
Common-Mode Rejection Ratio
AV
CMRR
fIN = 1kHz, input referred
12 dB
48 dB
Power-Supply Rejection Ratio
Output Power
PSRR
POUT
VPVDD = 2.6V to 5.5V, TA = +25°C
PVDDRIPPLE =
fRIPPLE = 217Hz
200mVP-P (Note 3) fRIPPLE = 20kHz
THD+N = 10%,
RL = 8
fIN = 1kHz
RL = 4
54 64.3
72
64
1.5
2.25
dB
W
Total Harmonic Distortion Plus
Noise
Output Offset Voltage
THD+N fIN = 1kHz
VOS TA = +25°C
RL = 8, POUT =
0.5W
RL = 4, POUT = 1W
0.04
0.04
±3 ±30
%
mV
Click-and-Pop Level
Peak voltage,
KCP
A-weighted, 32
samples/sec
(Notes 3, 4)
Into shutdown
Out of shutdown
-56
dBV
-56
2 _______________________________________________________________________________________


Part Number MAX9830
Description Mono 2W Class D Amplifier
Maker Maxim Integrated Products
Total Page 12 Pages
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