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PDF MAX98302 Data sheet ( Hoja de datos )
| Número de pieza | MAX98302 | |
| Descripción | Stereo 2.4W Class D Amplifier | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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19-5169; Rev 0; 4/10
EVAALVUAAILTAIOBNLEKIT
www.DataSheet4U.com
Stereo 2.4W Class D Amplifier
General Description
The MAX98302 stereo 2.4W Class D amplifier provides
Class AB audio performance with Class D efficiency.
This device offers five selectable gain settings (6dB,
9dB, 12dB, 15dB, and 18dB) set by a single gain-select
input (GAIN).
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 MAX98302 industry-leading 1.65mA at 3.7V, 2.25mA
at 5V, quiescent current extends battery life in portable
applications.
The MAX98302 is available in a 14-pin TDFN-EP (3mm x
3mm x 0.75mm) package specified over the extended
-40NC to +85NC temperature range.
Notebook and Netbook
Computers
Cellular Phones
Applications
MP3 Players
Portable Audio Players
VoIP Phones
Features
S Industry-Leading Quiescent Current: 1.65mA at
3.7V, 2.25mA at 5V
S Spread Spectrum and Active Emissions Limiting
S Five Selectable Gains
S High -67dB PSRR at 217Hz
S Click-and-Pop Suppression
S Thermal and Overcurrent Protection
S Low-Current Shutdown Mode
S Space-Saving, 3mm x 3mm x 0.75mm, 14-Pin
TDFN-EP Package
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX98302ETD+ -40NC to +85NC
14 TDFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Typical Application Circuit
+2.6V TO +5.5V
0.1µF 10µF
1µF
INL+
PVDD
OUTL+
1µF
INL-
PVDD
GAIN
1µF
INR+
1µF
INR-
PVDD
SHDN
OUTL-
GAIN
CONTROL
OUTR+
OUTR-
MAX98302
PGND
________________________________________________________________ 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.
1 page  
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Stereo 2.4W Class D Amplifier
Typical Operating Characteristics (continued)
(VPVDD = VSHDN = 5.0V, VPGND = 0V, AV = 12dB, RL = J, unless otherwise specified, RL connected between OUT_+ to OUT_-, 20Hz
to 22kHz AC measurement bandwidth, TA = +25NC, unless otherwise noted.)
EFFICIENCY vs. OUTPUT POWER
100
90 VPVDD = 3.7V
80
70
60 RL = 8I + 68µH
50 RL = 4I + 33µH
40
30
20
10
0
0 0.25 0.50 0.75 1.00 1.25 1.50
OUTPUT POWER (W)
OUTPUT POWER vs. SUPPLY VOLTAGE
3.5
RL = 4I + 68µH
3.0
2.5
10% THD+N
2.0
1.5
1.0
1% THD+N
0.5
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
CROSSTALK vs. FREQUENCY
0
INPUT REFERRED
-20
RL = 8I + 68µH
POUT = 300mW
-40
-60
LEFT TO RIGHT
-80
-100
-120
0.01
RIGHT TO LEFT
0.1 1 10
FREQUENCY (kHz)
100
OUTPUT POWER vs. LOAD RESISTANCE
3.0
VPVDD = 5V
2.5
10% THD+N
2.0
1.5
1% THD+N
1.0
0.5
0
1 10 100 1000
LOAD RESISTANCE (I)
OUTPUT POWER vs. SUPPLY VOLTAGE
2.5
RL = 8I + 68µH
2.0
1.5 10% THD+N
1.0
0.5 1% THD+N
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
0 INPUT REFERRED
-10 RL = 8I + 68µH
-20 POUT = 300mW
-30
-40
-50
-60
-70
-80
-90
0.01
0.1 1 10
FREQUENCY (kHz)
100
OUTPUT POWER vs. LOAD RESISTANCE
1.6
VPVDD = 3.7V
1.4
1.2
1.0
10% THD+N
0.8
0.6 1% THD+N
0.4
0.2
0
1 10 100 1000
LOAD RESISTANCE (I)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
0
VRIPPLE = 200mVP-P
-10 VPVDD = 5.0V
-20
-30
-40
-50
-60
-70
-80
0.01
0.1 1 10
FREQUENCY (kHz)
100
24
22
20
18
16
14
12
10
8
6
4
2
0
0.01
GAIN vs. FREQUENCY
AV = 18dB
AV = 15dB
AV = 12dB
AV = 9dB
AV = 6dB
0.1 1 10
FREQUENCY (kHz)
100
_______________________________________________________________________________________ 5
5 Page 
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Stereo 2.4W Class D Amplifier
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character,
but the drawing pertains to the package regardless of RoHS status.
PACKAGE TYPE
14 TDFN-EP
PACKAGE CODE
T1433-2
Document No.
21-0137
COMMON DIMENSIONS
PACKAGE VARIATIONS
SYMBOL MIN. MAX.
PKG. CODE N
D2
E2
e JEDEC SPEC b [(N/2)-1] x e
A 0.70 0.80
T633-2
6 1.50±0.10 2.30±0.10 0.95 BSC MO229 / WEEA 0.40±0.05 1.90 REF
D 2.90 3.10
T833-2
8 1.50±0.10 2.30±0.10 0.65 BSC MO229 / WEEC 0.30±0.05 1.95 REF
E 2.90 3.10
T833-3
8 1.50±0.10 2.30±0.10 0.65 BSC MO229 / WEEC 0.30±0.05 1.95 REF
A1 0.00 0.05
T1033-1
10 1.50±0.10 2.30±0.10 0.50 BSC MO229 / WEED-3 0.25±0.05 2.00 REF
L 0.20 0.40
T1033MK-1 10 1.50±0.10 2.30±0.10 0.50 BSC MO229 / WEED-3 0.25±0.05 2.00 REF
k 0.25 MIN.
T1033-2
10 1.50±0.10 2.30±0.10 0.50 BSC MO229 / WEED-3 0.25±0.05 2.00 REF
A2 0_.2_0_R_E_F_.__________T_1_4_33_-_1____1_4___1_.7_0_±_0._1_0__2_.3_0_±_0_.1_0__0_._40__BS_C_______-_-_-_- ______0_.2_0_±0_._05___2_.4_0_R_E_F_______ 11
T1433-2
14 1.70±0.10 2.30±0.10 0.40 BSC
----
0.20±0.05 2.40 REF
T1433-3F 14 1.70±0.10 2.30±0.10 0.40 BSC
----
0.20±0.05 2.40 REF
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet MAX98302.PDF ] | |
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