Datasheet

MAX13330/MAX13331
Automotive DirectDrive Headphone Amplifiers
with Output Protection and Diagnostics
4 _______________________________________________________________________________________
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX13330/31 toc01
FREQUENCY (kHz)
THD+N (%)
0.1 1 10
0.01
0.1
1
0.001
0.01 100
V
DD
= 4V
R
L
= 8Ω
P
OUT
= 25mW
P
OUT
= 45mW
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX13330/31 toc02
FREQUENCY (kHz)
THD+N (%)
0.1 1 10
0.01
0.1
1
0.001
0.01 100
V
DD
= 5V
R
L
= 8Ω
P
OUT
= 25mW
P
OUT
= 60mW
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX13330/31 toc03
FREQUENCY (kHz)
THD+N (%)
0.1 1 10
0.01
0.1
1
0.001
0.01 100
V
DD
= 4V
R
L
= 16Ω
P
OUT
= 25mW
P
OUT
= 75mW
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX13330/31 toc04
FREQUENCY (kHz)
THD+N (%)
0.1 1 10
0.01
0.1
1
0.001
0.01 100
V
DD
= 5V
R
L
= 16Ω
P
OUT
= 50mW
P
OUT
= 100mW
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX13330/31 toc05
FREQUENCY (kHz)
THD+N (%)
0.1 1 10
0.01
0.1
1
0.001
0.01 100
V
DD
= 4V
R
L
= 32Ω
P
OUT
= 25mW
P
OUT
= 70mW
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. FREQUENCY
MAX13330/31 toc06
FREQUENCY (kHz)
THD+N (%)
0.1 1 10
0.01
0.1
1
0.001
0.01 100
V
DD
= 5V
R
L
= 32Ω
P
OUT
= 50mW
P
OUT
= 125mW
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX13330/31 toc07
OUTPUT POWER (mW)
THD+N (%)
5025
0.1
1
10
0.01
0 75
V
DD
= 4V
R
L
= 8Ω
f
IN
= 10kHz
f
IN
= 1kHz
f
IN
= 100Hz
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX13330/31 toc08
OUTPUT POWER (mW)
THD+N (%)
50 10025 75
0.1
1
10
0.01
0 125
V
DD
= 5V
R
L
= 8Ω
f
IN
= 10kHz
f
IN
= 1kHz
f
IN
= 100Hz
TOTAL HARMONIC DISTORTION
PLUS NOISE vs. OUTPUT POWER
MAX13330/31 toc09
OUTPUT POWER (mW)
THD+N (%)
50 10025 75
0.01
0.1
1
10
0.001
0 125
V
DD
= 4V
R
L
= 16Ω
f
IN
= 10kHz
f
IN
= 1kHz
f
IN
= 100Hz
Typical Operating Characteristics
(V
DD
= V
CPVDD
= 5V, V
SGND
= V
PGND
= 0V, C1 = C2 = 1µF, R
L
= ∞, gain = -1.5V/V, THD+N measurement bandwidth = 22Hz to 22kHz,
T
A
= +25°C, unless otherwise noted.)