LM4839LQ NSC [National Semiconductor], LM4839LQ Datasheet - Page 7

• Manufacturer Part Number: LM4839LQ
• Description: Stereo 2W Audio Power Amplifiers with DC Volume Control, Bass Boost, and Input Mux
• Manufacturer: NSC [National Semiconductor]

Truth Table for Logic Inputs
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
LM4839MTE
THD+N vs Output Power
LM4839MTE
THD+N vs Frequency
Note 17: These curves show the thermal dissipation ability of the LM4839MTE at different ambient temperatures given these conditions:
Mute
0
0
0
0
1
500LFPM + 2in
2in
1in
Not Attached: The part is not soldered down and is not forced-air cooled.
2in
2
2
2
on bottom: The part is soldered to a 2in
: The part is soldered to a 1in
: The part is soldered to a 2in
Mux Control
2
: The part is soldered to a 2in
X
0
0
1
1
DS200134-70
DS200134-73
2
2
, 1oz. copper plane.
, 1oz. copper plane.
HP Sense
X
0
1
0
1
2
, 1oz. copper plane that is on the bottom side of the PC board through 21 8 mil vias.
2
, 1 oz. copper plane with 500 linear feet per minute of forced-air flow across it.
LM4839MTE
THD+N vs Frequency
LM4839MTE
Power Dissipation vs Output Power
(Note 16)
Left In 1, Right In 1
Left In 1, Right In 1
Left In 2, Right In 2
Left In 2, Right In 2
Inputs Selected
-
7
DS200134-65
DS200134-71
Bridged Output
Vol. Adjustable
Vol. Adjustable
Muted
Muted
Muted
LM4839MTE
THD+N vs Output Power
LM4839MTE (Note 17)
Power Derating Curve
Single-Ended Output
Vol. Adjustable
Vol. Adjustable
Muted
DS200134-64
-
-
www.national.com
DS200134-72