LM4681SQ NSC [National Semiconductor], LM4681SQ Datasheet - Page 11

• Manufacturer Part Number: LM4681SQ
• Description: 10 Watt Stereo CLASS D Audio Power Amplifier with Stereo Headphone Amplifier and I2C/SPI Volume Control
• Manufacturer: NSC [National Semiconductor]

Typical Performance Characteristics
Class D Amplifier Efficiency vs Total Output Power
Class D Amplifier Efficiency vs Total Output Power
Class D Amplifier Dissipation vs Load Dissipation
Both channels driven and measured
Both channels driven and measured
Both channels driven and measured
V
V
V
DD
DD
DD
= 15.5V, R
= 12V, R
= 9V, R
L
L
L
= 8Ω
= 8Ω
= 8Ω
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(Continued)
Upper curve = 10% THD+N, Lower curve = 1% THD+N
Class D Amplifier Efficiency vs Total Output Power
Class D Amplifier Dissipation vs Load Dissipation
Both channels driven and measured
Both channels driven and measured
Output Power vs Load Resistance
V
V
DD
DD
= 15.5V, R
= 12V, R
V
DD
= 9V,
L
L
= 8Ω
= 8Ω
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