YDA137 Datasheet, PDF (16/20 Pages) YAMAHA CORPORATION – D- 2 STEREO 5W DIGITAL AUDIO POWER AMPLIFIER

■Typical characteristics examples
Power vs THD+N　（VDD=5.0V）
10
2Ω, Lch
3Ω, Lch
4Ω、Lch
1
YDA137
Power vs THD+N　（VDD=3.0V）
10
2Ω, Lch
3Ω, Rch
4Ω, Lch
1
0.1
0.1
0.01
0.01
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
Output power(W)
Output power(W)
Frequency vs THD+N　（VDD=5.0V）
1
2Ω, Lch
2Ω, Rch
0.1
Frequency vs THD+N　（VDD=3.0V）
1
2Ω, Lch
2Ω, Rch
0.1
0.01
0.01
0.001
10
100
1000 10000
Frequency(Hz)
100000
90
85
80
75
70
65
60
55
50
0.0
Efficiency vs. Power　（VDD=5V）
RL=2Ω
RL=3Ω
RL=4Ω
1.0
2.0
3.0
4.0
5.0
Output power(W)
16
0.001
10
100
1000 10000
Frequency(Hz)
100000
90
85
80
75
70
65
60
55
50
0.0
Efficiency vs. Power　（VDD=3V）
RL=2Ω
RL=3Ω
RL=4Ω
0.5
1.0
1.5
2.0
Output power(W)