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参数资料
| 型号： | MAX98502EWE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/15页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUD 2.2W BOOST D 16WLP |
| 标准包装： | 2,500 |
| 类型： | D 类 |
| 输出类型： | 1-通道（单声道） |
| 在某负载时最大输出功率 x 通道数量： | 4.1W x 1 @ 4 欧姆 |
| 电源电压： | 2.5 V ~ 5.5 V |
| 特点： | 消除爆音，差分输入，关闭 |
| 安装类型： | * |
| 供应商设备封装： | * |
| 封装/外壳： | * |
| 包装： | * |
_______________________________________________________________________________________ 3
MAX98502
Boosted 2.2W Class D Amplifier
with Automatic Level Control
ELECTRICAL CHARACTERISTICS (continued)
(VBAT = 3.6V, RL = J between SPKP and SPKN, AV = +6dB, CIN = 1FF, 20Hz to 22kHz AC measurement bandwidth, TA = TMIN to
TMAX, unless otherwise noted. Typical values are at TA = +25NC.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Switching Frequency
fS
1.8
2.0
2.2
MHz
Efficiency
E
0.1A P IOUT P 0.75A
93
%
Startup Short-Circuit Time
Converter latch off
50
ms
Thermal Shutdown
165
N
C
LX Leakage Current
VLX = 0V or 5.5V,
VCCOUT = 5.5V
TA = +25NC
-1.0
+0.1
+1.0
F
A
-40NC P TA P +85NC
0.1
SPEAKER AMPLIFIER
Output Offset Voltage
VOS
TA = +25NC
1
3
mV
Click-and-Pop Level
KCP
Peak voltage, TA =
+25NC, A-weighted, 32
samples per second,
ZSPK = 8I + 68FH,
(Notes 3, 4)
Into shutdown
-56
dBV
Out of shutdown
-56
Output Power (Note 5)
POUT
ZSPK = 4I + 33FH
THD+N P 1%
3.4
W
THD+N P 10%
4.1
ZSPK = 8I + 68FH
THD+N P 1%
1.7
THD+N P 10%
2.2
Total Harmonic Distortion Plus
Noise
THD+N
f = 1kHz, POUT = 1.7W, TA = +25NC,
ZSPK = 4I + 33FH
0.05
%
f = 1kHz, POUT = 850mW, TA = +25NC,
ZSPK = 8I + 33FH
0.04
Output Switching Frequency
300
kHz
Gain
AV
GAIN = AGND
5.5
6
6.5
dB
GAIN = unconnected
15
15.5
16
GAIN = VBAT
19.5
20
20.5
Output Current Limit
2
A
Efficiency
E
POUT = 1.5W, f = 1kHz, ZSPK = 8I + 68FH
92
%
POUT = 1.5W, f = 1kHz, ZSPK = 4I + 33FH
87
Output Noise
A-weighted
43
F
VRMS
Input Resistance
RIN
SDBST = SDSPK =
VBAT
AV = 6dB
(GAIN = AGND)
36
54
72
kI
AV = 15.5dB
(GAIN =
unconnected)
12
18
26
AV = 20dB
(GAIN = VBAT)
6.5
11
16
VSDBST = VSDSPK = 0V
All gain settings
110
Common-Mode Rejection Ratio
CMRR
f = 1kHz
60
dB
Bias Voltage
VBIAS
1.3
1.4
1.5
V
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