MP1720 – 2.7W LOW EMI HIGH EFFICIENCY MONO CLASS-D AUDIO AMPLIFIER
TYPICAL APPLICATION CIRCUIT
Cs
10
0.1
Cs
VIN
PVIN
OUTN
OUTP
PGND
CLK
OUT-
IN+
IN-
Differential
Input
INP
MP1720
INN
OUT+
DGND
1.0MHz
SHDN
Enable
100pF
1.3MHz
Ext-clock0.5~1.4MHz
Figure 2—MP1720 Application Schematic with Differential Input
(Input DC-biased voltage is within the recommended common-mode voltage range)
Cs
10
0.1
Cs
VIN
PVIN
OUTN
OUTP
PGND
CLK
C
IN
1
1
OUT-
OUT+
IN+
IN-
Differential
Input
INP
C
IN
MP1720
INN
DGND
1.0MHz
Enable
SHDN
100pF
1.3MHz
50
Ext-clock 0.5~1.4MHz
Figure 3—MP1720 Application Schematic with Differential Input
(Input DC-biased voltage is out of the recommended common-mode voltage range)
Cs
10
0.1
VIN
PVIN
OUTN
OUTP
PGND
CLK
Cs
C
1
1
IN
OUT-
INP
SE Input
C
IN
MP1720
INN
OUT+
DGND
1.0MHz
Enable
SHDN
100pF
1.3MHz
50
Ext-clock0.5~1.4MHz
Figure 4—MP1720 Application Schematic with Single Ended Input
MP1720 Rev. 1.01
8/9/2012
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