LX1720 Просмотр технического описания (PDF) - Microsemi Corporation
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LX1720 Datasheet PDF : 6 Pages
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AudioMAXTM
PRODUCT DATABOOK 1996/1997
SWITCHING CLASS-D, STEREO POWER AMPLIFIER CONTROLLER IC
PRODUCTION DATA SHEET
BLOCK DIAGRAM
LX1720
RT
CT
S LE E P
R B IA S
VDD
CN
E A O U T (R )
E A IN (R )
F B K + (R )
F B K - (R )
F A O U T (R )
IN P U T (R )
M U T E (R )
RPW M
CPW M
E A O U T (L )
E A IN (L )
F B K + (L )
F B K - (L )
F A O U T (L )
IN P U T (L )
M U T E (L )
O SC C LK
U V LO
VREF
B IA S
F eedback
Am p
E rro r A m p
SQ
RQ
C LK
In p u t A m p
VDD
VDD
C LK
E rro r A m p
F eedback
Am p
SQ
RQ
C LK
In p u t A m p
FIGURE 1 — LX1720 Block Diagram
V REG
O U TPU T
D R IV E R S
AND
P R O T E C T IO N
C IR C U IT R Y
PG ND
PVDD
CP
P - (R )
N - (R )
P + (R )
N + (R )
P - (L )
N - (L )
P + (L )
N + (L )
Copyright © 1999
Rev. 1.0 9/99
5
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