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LM4839 Scheda tecnica(PDF) 7 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Il numero della parte LM4839
Spiegazioni elettronici  Stereo 2W Audio Power Amplifiers with DC Volume Control, Bass Boost, and Input Mux
PDF  34 Pages
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Produttore elettronici  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4839 Scheda tecnica(HTML) 7 Page - National Semiconductor (TI)

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Truth Table for Logic Inputs (Note 16)
Mute
Mux Control
HP Sense
Inputs Selected
Bridged Output
Single-Ended Output
0
0
0
Left In 1, Right In 1
Vol. Adjustable
-
0
0
1
Left In 1, Right In 1
Muted
Vol. Adjustable
0
1
0
Left In 2, Right In 2
Vol. Adjustable
-
0
1
1
Left In 2, Right In 2
Muted
Vol. Adjustable
1
X
X
-
Muted
Muted
Note 16: If system beep is detected on the Beep in pin (pin 11) and beep is fed to inputs, the system beep will be passed through the bridged amplifier regardless
of the logic of the Mute, HP sense, or DC Volume Control pins.
Typical Performance Characteristics
MTE Specific Characteristics
Note 17: These curves show the thermal dissipation ability of the LM4839MTE at different ambient temperatures given these conditions:
500LFPM + 2in2: The part is soldered to a 2in2, 1 oz. copper plane with 500 linear feet per minute of forced-air flow across it.
2in2on bottom: The part is soldered to a 2in2, 1oz. copper plane that is on the bottom side of the PC board through 21 8 mil vias.
2in2: The part is soldered to a 2in2, 1oz. copper plane.
1in2: The part is soldered to a 1in2, 1oz. copper plane.
Not Attached: The part is not soldered down and is not forced-air cooled.
LM4839MTE
THD+N vs Output Power
DS200134-70
LM4839MTE
THD+N vs Frequency
DS200134-71
LM4839MTE
THD+N vs Output Power
DS200134-72
LM4839MTE
THD+N vs Frequency
DS200134-73
LM4839MTE
Power Dissipation vs Output Power
DS200134-65
LM4839MTE (Note 17)
Power Derating Curve
DS200134-64
www.national.com
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