Datasheet

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MAX98307/MAX98308
3.3W Mono Class DG Multilevel Audio Amplifier
Typical Operating Characteristics (continued)
(V
PVDD
= V
CC
= V
SHDN
= 3.6V, V
PGND
= V
GND
= 0V, Z
L
= 8ω + 68FH between OUT+ and OUT-, A
V
= 14.5dB (MAX98307 R
IN+
=
R
IN-
= 10kω, R
FB+
= R
FB-
= 20kω), C
IN+
= C
IN-
= 0.33µF, AC measurement bandwidth 20Hz to 20kHz.)
COMMON-MODE REJECTION
RATIO vs. FREQUENCY (MAX98307)
MAX98307 toc31
FREQUENCY (Hz)
CMRR (dB)
10k1k100
-80
-70
-60
-50
-40
-30
-20
-10
0
-90
10 100k
f
IN
= 1kHz
INBAND OUTPUT SPECTRUM
MAX98307 toc36
FREQUENCY (Hz)
OUTPUT MAGNITUDE (dBV)
10k1k100
-120
-100
-80
-60
-40
-20
0
-140
10 100k
V
PVDD
= 3.6V
STARTUP RESPONSE
MAX98307 toc33
I
SPEAKER
100mA/div
20ms/div
V
SHDN
2V/div
COMMON-MODE REJECTION
RATIO vs. FREQUENCY (MAX98308)
MAX98307 toc32
FREQUENCY (Hz)
CMRR (dB)
10k1k100
-70
-60
-50
-40
-30
-20
-10
0
-80
10 100k
CLIPPING WAVEFORM 10% THD+N
MAX98307 toc37
OUT-
1V/div
200µs/div
OUT+
1V/div
SHUTDOWN RESPONSE
MAX98307 toc34
I
SPEAKER
100mA/div
20ms/div
V
SHDN
2V/div
WIDEBAND vs. FREQUENCY
MAX98307 toc35
FREQUENCY (Hz)
OUTPUT MAGNITUDE (dBV)
10G1G
-160
-140
-120
-100
-80
-60
-40
-20
0
-180
100k 100G
V
PVDD
= 3.6V