lm4664 National Semiconductor Corporation, lm4664 Datasheet - Page 6

• Manufacturer Part Number: lm4664
• Description: Filterless High Efficiency 1.1w Switching Audio Amplifier
• Manufacturer: National Semiconductor Corporation

Typical Performance Characteristics
(Continued)
PSRR vs Frequency
PSRR vs Frequency
V
= 5V, R
= 15µH + 8Ω + 15µH
V
= 3V, R
= 15µH + 8Ω + 15µH
DD
L
DD
L
V
= 100V
Sine Wave, 22kHz BW
V
= 100V
Sine Wave, 22kHz BW
Ripple
RMS
Ripple
RMS
200960E3
200960E4
Efficiency and Power Dissipation
Efficiency and Power Dissipation
vs Output Power
vs Output Power
<
<
V
= 5V, R
= 15µH + 8Ω + 15µH, f = 1kHz, THD
2%
V
= 3V, R
= 15µH + 8Ω + 15µH, f = 1kHz, THD
1%
DD
L
DD
L
200960E5
200960E6
Gain Select Threshold
Gain Select Threshold
V
= 3V
V
= 5V
DD
DD
200960H6
200960H1
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