Datasheet

MAX98357A/MAX98357B
PCM Input Class D Audio Power Amplifiers
9Maxim Integrated
Typical Operating Characteristics
(V
DD
= 5V, V
GND
= 0V, GAIN_SLOT = GND (+12dB). BCLK = 3.072MHz, LRCLK = 48kHz, speaker loads (Z
SPK
) connected between
OUTP and OUTN, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25NC.)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
QUIECENT CURRENT (mA)
SUPPLY VOLTAGE (V)
QUIESCENT CURRENT vs.
SUPPLY VOLTAGE
V
DDIO
= 1.8V
toc01
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
2.5 3.0 3.5 4.0 4.5 5.0 5.5
SHUTDOWN CURRENT (µA)
SUPPLY VOLTAGE (V)
SHUTDOWN CURRENT vs. SUPPLY VOLTAGE
toc02
V
DDIO
= 1.8V
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0.001 0.01 0.1 1 10
THD+N (dB)
OUTPUT POWER (W)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
V
DD
= 3.7V
Z
SPK
= 8Ω + 68μ H
f = 100Hz
f = 1kHz
f = 6kHz
toc03
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0.001 0.01 0.1 1 10
THD+N (dB)
OUTPUT POWER (W)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
V
DD
= 4.2V
Z
SPK
= 8Ω + 68μ H
f = 100Hz
f = 1kHz
f = 6kHz
toc04
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0.001 0.01 0.1 1 10
THDN (dB)
OUTPUT POWER (W)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
V
DD
= 5V
Z
SPK
= 8Ω + 68μ H
f = 6kHz
f = 1kHz
f = 100Hz
toc05
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0.001 0.01 0.1 1 10
THD+N (dB)
OUTPUT POWER (W)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
V
DD
= 3.7V
Z
SPK
= 4Ω + 33μ H
f = 6kHz
f = 1kHz
f = 100Hz
toc06
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0.001 0.01 0.1 1 10
THD+N (dB)
OUTPUT POWER (W)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
V
DD
= 4.2V
Z
SPK
= 4Ω + 33μ H
f = 100Hz
f = 1kHz
f = 6kHz
toc07
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0.001 0.01 0.1 1 10
THD+N (dB)
OUTPUT POWER (W)
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
V
DD
= 5V
Z
SPK
= 4Ω + 33μ H
f = 6kHz
f = 1kHz
f = 100Hz
toc08