LX1722(2003) データシートの表示（PDF） - Microsemi Corporation
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コンポーネント説明
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LX1722 Datasheet PDF : 14 Pages
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INTEGRATED PRODUCTS
AudioMAX™
LX1721 / 1722
Class-D Stereo Power Amplifier Controller
PRODUCTION
VDD 41
LISN 42
CLOCK 8
RPWM 3
CPWM 2
LEAOUT 5
LEAIN 6
LAMPOUT 13
LIN- 12
LIN+ 11
LMUTE 4
BLOCK DIAGRAM
SYNC
OSC
CLK
ERROR AMP
PVDD
+
-
220mV
UVLO
&
REFERENCE
CURRENT SENSE
FAULT
TIMER
CLK
S
Q
R
Q
5V
Reference
17 SLEEP
7 VREF
10 V25
40 CN
5V
Reference
27,39 PVDD
28 CP
OUTPUT
DRIVERS
&
LOGIC
36 LP+
37 LN+
34 LN-
35 LP-
INPUT AMP
2.5V
MUTE
MUX
MUTE
FEEDBACK AMP
2.5V
1 LFAOUT
44 LFBK-
43 LFBK+
FIGURE 1 – LX1721 / 22 SIMPLIFIED BLOCK DIAGRAM (LEFT CHANNEL CIRCUIT SHOWN)
Copyright 2001
Rev. 1.1,2003-06-10
Microsemi
Linfinity Microelectronics Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 6
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