Datasheet

_______________________________________________________________________________________ 7
MAX98502
Boosted 2.2W Class D Amplifier
with Automatic Level Control
Typical Operating Characteristics (continued)
(V
BAT
= 3.6V, R
L
= ∞ between SPKP and SPKN, A
V
= +15.5dB, RKNEE = V
BAT
, 20Hz to 22kHz AC measurement bandwidth, unless
otherwise noted.)
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
MAX98502 toc16
FREQUENCY (kHz)
CMRR (dB)
1010.1
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-100
0.01 100
A
V
= 20dB
Z
LOAD
= 8I + 68µH
A
V
= 15.5dB
A
V
= 6dB
SHUTDOWN RESPONSE
MAX98502 toc17
SPKR
OUTPUT
1V/div
40µs/div
V
SDSPK
2V/div
CLIPPING RESPONSE
MAX98502 toc19
200µs/div
THD+N = 10%
V
RKNEE
= 3.6V
V
SDSPK
2V/div
TURN-ON RESPONSE
MAX98502 toc18
SPKR
OUTPUT
1V/div
1ms/div
FREQUENCY (MHz)
10
1k
OUTPUT AMPLITUDE (dBV)
10010.1
WIDEBAND OUTPUT SPECTRUM
MAX98502 toc20
-80
-60
-40
-20
0
20
-100
RBW = 100Hz
IN-BAND OUTPUT SPECTRUM
MAX98502 toc21
FREQUENCY (kHz)
AMPLITUDE (dBV)
15105
-100
-80
-60
-40
-20
0
-120
02
0
f
IN
= 1kHz
Z
LOAD
= 8I + 68µH