PAM8945 Datasheet, PDF (5/9 Pages) Diodes Incorporated – 4.0W CLASS-G AUDIO AMPLIFIER WITH INTEGRATED

PAM8945
Performance Characteristics (@VBAT=3.6V, AGC=GND, TA = +25°C, RL=8Ω +33μH, unless otherwise specified.)
THD+N vs. Output Power (RL= 8Ω)
THD+N vs. Output Power (RL = 4Ω)
20
10
5
2
1
%
0.5
0.2
0.1
0.05
f=100Hz/1kHz/10kHz
(Red/Pink/Blue)
0.02
0.01
1m
2m
5m
10m
20m
50m 100m 200m
W
500m
1
2
4
20
10
5
2
1
%
0.5
0.2
0.1
0.05
f=100Hz/1kHz/10kHz
(Red/Pink/Blue)
0.02
0.01
1m
2m
5m 10m 20m
50m 100m 200m
500m 1
2
W
58
THD+N vs. Frequency (RL = 8Ω)
10
5
2
1
%
0.5
Po=0.3W/0.5W/1W
(Red/Pink/Blue)
0.2
0.1
0.05
0.03
20
50
100
200
500
1k
2k
Hz
5k
10k 20k
THD+N vs. Frequency (RL = 4Ω)
10
5 ^{Po=0.3W/0.5W/1W}
(Red/Pink/Blue)
2
1
%
0.5
0.2
0.1
0.05
0.03
20
50
100
200
500
1k
2k
Hz
5k
10k 20k
PSRR vs. Frequency (RL = 8Ω)
+0_{T T T T T T T T T T T}
-10
AGC=GND
-20
-30
-40
-50
d
B
-60
-70
-80
-90
-100
-110
20
50
100
200
500
1k
2k
Hz
5k
10k 20k
PSRR vs. Frequency (RL = 4Ω)
+0_{T T T T T T T T T T T T}
-10
AGC=GND
-20
-30
-40
-50
d
B
-60
-70
-80
-90
-100
-110
20
50
100
200
500
1k
2k
Hz
5k
10k 20k
PAM8945
Document number: DS38267 Rev. 1 - 2
5 of 9
www.diodes.com
December 2015
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