80mW, Fixed-Gain, DirectDrive, Stereo
Headphone Amplifier with Shutdown
Typical Operating Characteristics (continued)
(C1 = C2 = 2.2µF, THD+N measurement bandwidth = 22Hz to 22kHz, TA = +25°C, unless otherwise noted.)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
1
VDD = 1.8V
RL = 32Ω
0.1
POUT = 5mW
0.01
POUT = 10mW
0.001
10
POUT = 20mW
100
1k
10k
100k
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
100
VDD = 3V
RL = 16Ω
10 fIN = 10kHz
OUTPUTS IN
PHASE
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
100
VDD = 3V
RL = 16Ω
10 fIN = 20Hz
OUTPUTS IN
PHASE
1
OUTPUTS 180°
OUT OF PHASE
0.1
0.01
0.001
0
ONE CHANNEL
DRIVEN
50
100
150
200
OUTPUT POWER (mW)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
100
VDD = 3V
RL = 32Ω
10 fIN = 20Hz
OUTPUTS IN
PHASE
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
100
VDD = 3V
RL = 16Ω
10 fIN = 1kHz
OUTPUTS IN
PHASE
1
OUTPUTS 180°
0.1
OUT OF PHASE
0.01
0.001
0
ONE CHANNEL
DRIVEN
50
100
150
200
OUTPUT POWER (mW)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
100
VDD = 3V
RL = 32Ω
10 fIN = 1kHz
OUTPUTS IN
PHASE
1
OUTPUTS 180°
OUT OF PHASE
0.1
0.01
0.001
0
ONE CHANNEL
DRIVEN
50
100
150
200
OUTPUT POWER (mW)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
100
VDD = 3V
RL = 32Ω
10 fIN = 10kHz
OUTPUTS IN
PHASE
1
0.1 OUTPUTS 180°
OUT OF PHASE
0.01
0.001
0
ONE CHANNEL
DRIVEN
25
50
75 100 125
OUTPUT POWER (mW)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
100
VDD = 1.8V
RL = 16Ω
10 fIN = 20Hz
OUTPUTS IN
PHASE
1
0.1 OUTPUTS 180°
OUT OF PHASE
0.01
0.001
0
ONE CHANNEL
DRIVEN
25
50
75 100 125
OUTPUT POWER (mW)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
100
VDD = 1.8V
RL = 16Ω
10 fIN = 1kHz
OUTPUTS IN
PHASE
1
OUTPUTS 180°
0.1
OUT OF PHASE
1
OUTPUTS 180°
OUT OF PHASE
0.1
1
OUTPUTS 180°
OUT OF PHASE
0.1
0.01
0.001
0
ONE CHANNEL
DRIVEN
25
50
75 100 125
OUTPUT POWER (mW)
0.01
0.001
0
ONE CHANNEL
DRIVEN
10 20 30 40 50 60
OUTPUT POWER (mW)
0.01
0.001
0
ONE CHANNEL
DRIVEN
10 20 30 40 50 60
OUTPUT POWER (mW)
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