PAM8902 Datasheet, PDF (6/13 Pages) Power Analog Micoelectronics – 30-Vpp Mono Class-D Audio Amplifier for Piezo/Ceramic Speakers

PAM8902
30-Vpp Mono Class-D Audio Amplifier for Piezo/Ceramic Speakers
Typical Operating Characteristics
T_A=25°C, V_DD=4.2V,Gain=26dB,Cin=1uF,Cload=1uF, unless otherwise noted.
1. Total Supply Current VS Output Voltage
160
2. Total Input Power VS Output Voltage
0 .6
140
0 .5
120
0 .4
100
80
0 .3
60
40
VDD= 3.6V
20
VDD= 4.2V
VDD= 5.5V
0
0
2
4
6
8
10
12
Out put Voltage(V rms)
0 .2
VD D = 3.6 V
0 .1
VD D = 4.2 V
VD D = 5.5 V
0
0
2
4
6
8
10
12
O u tp ut Vo lt ag e(V rm s)
3. THD+N VS Frequency
10
5 VDD=3.6V
4. THD+N VS Frequency
10
5 _VDD=5.5V
2
1
Vo=2Vrms
0.5
Vo=4Vrms
0.2
0.1
0.05
Vo=6Vrms
0.03
20
50 100 200
500 1k 2k
5k 10k 20k
Hz
Frequency(Hz)
2
Vo=2Vrms
1
Vo=4Vrms
0.5
0.2
0.1
0.05
0.03
20
Vo=6Vrms
50 100 200
500 1k 2k
5k 10k 20k
Hz
Frequency(Hz)
5. Output Voltage RMS VS Frequency
18
16
ΤΗD=1%
Vset High
14
VDD=5.5V
12
10
8
6
VDD=4.2V
4
2
VDD=3.6V
0
20
50 100 200
500 1k 2k
5k 10k 20k
Hz
Frequency(Hz)
6. Output Voltage RMS VS Frequency
18
16 ^{ΤΗD=10%}
Vset High
14
VDD=5.5V
12
10
8
6
VDD=4.2V
4
2
VDD=3.6V
0
20
50 100 200
500 1k 2k
5k 10k 20k
Hz
Frequency(Hz)
Power Analog Microelectronics, Inc
www.poweranalog.com
6
01/2012 Rev1.4