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MP7748DF 数据表(PDF) 4 Page - Monolithic Power Systems

部件名 MP7748DF
功能描述  2x20W Stereo Single Ended Class D Audio Amplifier
PDF  19 Pages
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制造商  MPS [Monolithic Power Systems]
网页  http://www.monolithicpower.com
标志 MPS - Monolithic Power Systems

MP7748DF 数据表(HTML) 4 Page - Monolithic Power Systems

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MP7748 – 2X20W STEREO SINGLE ENDED CLASS D AUDIO AMPLIFIER
MP7748 Rev. 1.0
www.MonolithicPower.com
4
1/28/2011
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
OPERATING SPECIFICATIONS
Circuit of figure 5, single-ended output configuration, VDD = 24V, Gain=8.25V/V, VEN = 5V, TA =
+25
°C, unless otherwise noted.
Parameters
Symbol Condition
Min
Typ
Max
Units
Standby Current
VEN = 0V
180
µA
Quiescent Current
Switching, no load
26
mA
Power Output
f = 1kHz, THD+N = 10%, 4Ω Load
19.3
W
f = 1kHz, THD+N = 10%, 8Ω Load
10.6
W
THD+ Noise
POUT = 1W, f = 1kHz, 4Ω Load
0.02
%
POUT = 1W, f = 1kHz, 8Ω Load
0.02
%
Efficiency
f = 1kHz, POUT = 19.3W, 4Ω Load
91
%
f = 1kHz, POUT = 10.6W, 8Ω Load
96
%
Maximum Power Bandwidth
20
kHz
Dynamic Range
97
dB
Noise Floor
A-Weighted
103
µV
Power Supply Rejection
VCC=24V,
Gain=8.25V/V,
VRIPPLE=200mVPP
CR=100µF
f = 1kHz
-59
dB
f = 217Hz
-59
dB
Circuit of figure 6, bridge-tied-load output configuration, VDD = 24V, Gain=15V/V, VEN = 5V, TA =
+25
°C, unless otherwise noted.
Parameters
Symbol Condition
Min
Typ
Max
Units
Standby Current
VEN = 0V
180
µA
Quiescent Current
Switching, no load
26
mA
Power Output
f = 1kHz, THD+N = 10%, 6Ω Load
50
W
f = 1kHz, THD+N = 10%, 8Ω Load
40
W
THD+ Noise
POUT = 1W, f = 1kHz, 6Ω Load
0.04
%
POUT = 1W, f = 1kHz, 8Ω Load
0.03
%
Efficiency
f = 1kHz, POUT = 50W, 6Ω Load
91
%
f = 1kHz, POUT = 40W, 8Ω Load
94
%
Maximum Power Bandwidth
20
kHz
Dynamic Range
107
dB
Noise Floor
A-Weighted
140
µV
Power Supply Rejection
VCC=24V,
Gain=15V/V,
VRIPPLE=200mVPP
f = 1kHz
-60
dB
f = 217Hz
-60
dB



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