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| AK7841 Datasheet, PDF (2/21 Pages) Asahi Kasei Microsystems – Monaural Audio Class-D Amp with Power Booster for PiezoSpeaker | |||
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ASAHI KASEI
[AK7841]
DVDDI
PDN
PG0
PG1
PG2
INN
INP
SDSEL
VC
VSS3
BLOCK DIAGRAM
PD
Cont
Gain
C on trol
Power
Booster
Pre
AMP
-3dB â¼ +18dB
3dB step
VREF
Class-D
AMP
+16dB
Figure. 1 Block Diagram
V B AT
VCOIL
VFB
ERRO
VSS2
VDD1
VCN
VCP
VSS1
Rev.08
2008/3
-2-
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