LM4839 datasheet(7/34 Pages) NSC

7 / 34 page

Truth Table for Logic Inputs (Note 16)

Mute

Mux Control

HP Sense

Inputs Selected

Bridged Output

Single-Ended Output

Left In 1, Right In 1

Vol. Adjustable

Left In 1, Right In 1

Muted

Vol. Adjustable

Left In 2, Right In 2

Vol. Adjustable

Left In 2, Right In 2

Muted

Vol. Adjustable

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

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