BD5461GUL Rohm, BD5461GUL Datasheet - Page 6

• Manufacturer Part Number: BD5461GUL
• Description: Analog Input Monaural Class-D Speaker Amplifier
• Manufacturer: Rohm

●Evaluation board Parts List
●Description of External components
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BD5461GUL
www.rohm.com
①Input coupling capacitor (C1,C2)
②Power decoupling capacitor (C3)
It makes a Input coupling capacitor 0.1µF.
Input impedance is 75kΩ (Typ.).
It sets cutoff frequency fc by the following formula by input coupling capacitor C1(=C2) and input impedance Ri.
In case of Ri=75kΩ, C1 (=C2)=0.1µF, it becomes fc = about 21 Hz.
It makes a power decoupling capacitor 10 µF.
When making capacitance of the power decoupling capacitor, there is an influence in the Audio characteristic.
When making small, careful for the Audio characteristic at the actual application.
Qty.
fc
2
1
1
1
1

2
π

Ri
1
C1, C2
PCB1
Item

C3
U1
S1
C
1
[Hz]
Capacitor, 0.1μF
Capacitor, 10μF
Slide Switch
IC, BD5461GUL,
Mono Class-D audio amplifier
Printed-circuit board,
BD5460GUL EVM
Description
0603
A (3216)
4mm X 10.2mm
1.6mm X 1.6mm
WL-CSP Package
6/16
SMD Size
―
Murata
GRM188R71C104KA01D
ROHM
TCFGA1A106M8R
NKK
SS-12SDP2
ROHM
BD5461GUL
Manufacturer/
Part Number
www.DataSheet4U.com
―
Technical Note
2010.06 - Rev.A