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LM49251 Datenblatt(PDF) 3 Page - Texas Instruments

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Teilenummer LM49251
Bauteilbeschribung  Stereo Audio Subsystem with Class G Headphone Amplifier and Class D Speaker Amplifier with Speaker Protection
Download  41 Pages
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Hersteller  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

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VOLUME
-80 dB to
+18 dB
BIAS
CLASS D
+12 dB,
+18 dB
LSOUTR+
LSOUTR-
SET
HPL
HPR
RIN2
BYPASS
SDA
SCL
GND
CHARGE
PUMP
C1-
C1+
CPGND
LEVEL DETECT
AND
CLASS G
CONTROL
-18 dB
to 0 dB
MUX
VDD
F2
CPVSS
ALC
POWER
LIMITER
AND
NO
CLIP
A5
B5
CLASS D
+12 dB,
+18 dB
LSOUTL+
LSOUTL-
F5
E5
VDD
A4
B1
VDD
F4
VDD
-18 dB
to 0 dB
C1
CPVDD
HPVDD
HP GND Sense
D1
E1
E3
I
2
CVDD
F1
E2
D2
F3
D5
GND
C5
GND
A2
I
2
C INTERFACE
C2
B2
A1
D4
B4
LIN2
C4
RIN1
C3
LIN1
D3
INL1/INL2
MIXER
AND
OUTPUT
MODE
SELECT
INR1/INR2
VOLUME
-86 dB to +12 dB
INM+
A3
INM-
B3
E4
4.7 µF
4.7 µF
4.7 µF
100 nF
2.2 µF
2.2 µF
2.2 µF
2.2 µF
2.2 µF
0.22 µF
0.22 µF
0.22 µF
0.22 µF
0.22 µF
0.22 µF
LM49251
www.ti.com
SNAS498A – FEBRUARY 2011 – REVISED APRIL 2013
Typical Application
Figure 2. Typical Audio Amplifier Application Circuit
Copyright © 2011–2013, Texas Instruments Incorporated
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