lm4840 National Semiconductor Corporation, lm4840 Datasheet - Page 5

• Manufacturer Part Number: lm4840
• Description: Stereo 2w Audio Power Amplifiers With Digital Volume Control And Input Mux
• Manufacturer: National Semiconductor Corporation

MH and LQ Specific Characteristics
LM4840MH, LM4840LQ
THD+N vs Output Power
LM4840MH, LM4840LQ
THD+N vs Frequency
Note 17: These curves show the thermal dissipation ability of the LM4840MH at different ambient temperatures given these conditions:
Typical Performance Characteristics
THD+N vs Frequency
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
2
: The part is soldered to a 2in
DS200104-70
DS200104-73
DS200104-57
2
2
, 1oz. copper plane.
, 1oz. copper plane.
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.
LM4840MH, LM4840LQ
THD+N vs Frequency
LM4840MH, LM4840LQ
Power Dissipation vs Output Power
THD+N vs Frequency
5
DS200104-65
DS200104-71
DS200104-58
LM4840MH, LM4840LQ
THD+N vs Output Power
LM4840MH(Note 17)
Power Derating Curve
THD+N vs Frequency
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DS200104-64
DS200104-72
DS200104-14