AK7846 Datasheet, PDF (2/16 Pages) Asahi Kasei Microsystems – Stereo Audio Class-D Amp with Power Booster for Piezo Speakers

AKEMDAKEMD CONFIDENTIAL
FC１
FC0
PG2
PG1
PG0
DVDDI
PDN
IN L
IN R
VC
BLOCK DIAGRAM
Power Booster
Pre
GainL
Fc:
4/8/16kHz
LPF L
Class-D
AMP L
-6 ～ +15dB
3dB step
Pre
GainR
VREF
LPF R
Class-D
AMP R
VBAT
VCOIL
VFB
ERRO
VSS3
VDD1
VCLN
VCLP
VSS1
VSS4
VDD2
VCRN
VCRP
VSS2
Figure 1. BLOCK DIAGRAM
[AK7846]
Rev.04.9
–2–
2008/03