MP1720 - 2.7W低EMI高效单声道D类音频放大器
操作特性
测试设置图， VIN = PVIN = SHDN = 3.3V ， DGND = PGND = 0V ， CLK = DGND
(f
CLK
= 1.0MHz的） ，R
负载
= 4Ω ，增益= 12分贝，T
A
= +25
C，除非另有说明
(6)
.
参数
符号
条件
THD+N=1%,
R
负载
=4Ω
THD+N=10%,
R
负载
=4Ω
THD+N=1%,
R
负载
=8Ω
THD+N=10%,
R
负载
=8Ω
总失真的脉冲
噪音
电源纹波
抑制比
(7)
信噪比
输出噪声
共模
抑制比
(8)
THD + N
K
SVR
SNR
V
n
CMRR
P
OUT
=2W,
P
OUT
=0.8W
P
OUT
=0.4W
f
S
=217Hz,
V
纹波
=300mV
PP
,
输入AC-地
V
OUT
=2 V
RMS
A计权
V
IN
= 3.3V ，女
s
=20Hz
到20kHz ，输入AC-
接地
维克
纹波
=300mV
PP
,
f
s
=1kHz
V
IN
=5.0V
V
IN
=3.3V
V
IN
=2.5V
V
IN
=5.0V
V
IN
=3.3V
V
IN
=2.5V
V
IN
=5.0V
V
IN
=3.3V
V
IN
=2.5V
V
IN
=5.0V
V
IN
=3.3V
V
IN
=2.5V
V
IN
=5.0V
V
IN
=3.3V
V
IN
=2.5V
V
IN
=3.3V
V
IN
=3.3V
没有权重
一个加权
V
IN
=3.3V
民
典型值
2.14
0.87
0.48
2.78
1.18
0.64
1.19
0.55
0.31
1.56
0.71
0.40
0.15%
0.13%
0.13%
-60
91.3
72
53
-62
最大
单位
W
输出功率
P
OUT
W
dB
dB
μV
RMS
dB
MP1720牧师1.01
8/9/2012
www.monolithicpower.com
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4
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