bd5468gul-e2 ROHM Co. Ltd., bd5468gul-e2 Datasheet - Page 15

• Manufacturer Part Number: bd5468gul-e2
• Description: Analog Input Monaural Class-d Speaker Amplifier
• Manufacturer: ROHM Co. Ltd.

●Evaluation data – Typical characteristics (2/4)
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BD5468GUL
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Evaluation data - Typical Characteristics (2/4)
100
0.1
0.01
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
10
0.1
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1
10
0.01
1
10
4
2
Total Harmonic Distortion + Noise vs Output Power
Total Harmonic Distortion + Noise vs Frequency
VDD = 2.5V
VDD = 3.6V
VDD = 5.0V
VDD = 5.0V
2.5
Po=25mW
Po=100mW
Po=250mW
8
Po = 25mW
RL=8Ω, f=1kHz, 400Hz-30kHz BPF
VDD = 2.5V
THD+N=1%, f=1kHz, 400Hz-30kHz BPF
RL=8Ω, f=1kHz, 400Hz-30kHz BPF
VDD=5.0V RL=8Ω, 400Hz-30kHz BPF
Output Power vs Power Supply
Output power vs Load Resistance
100
3
12
0.1
VDD = 3.6V
Output Power [W]
Fig.16
3.5
Figure.10
Figure.12
Frequency [Hz]
Figure.14
Figure.9
Po = 100mW
Fig.13
16
Fig.14
Fig.18
VDD = 3.6V
VDD[V]
RL[Ω]
1k
4
20
Po = 250mW
4.5
VDD = 2.5V
1
VDD = 5.0V
24
10k
THD+N≦1%
5
VDD=2.5V
VDD=3.6V
VDD=5.0V
28
5.5
100k
10
32
6
15/19
100
0.1
10
0.01
2.5
2.0
1.5
1.0
0.5
0.0
1
0.1
0.01
10
1
10
2
Total Harmonic Distortion + Noise vs Frequency
Total Harmonic Distortion + Noise vs Output Power
2.5
VDD = 2.5V
VDD = 3.6V
VDD = 5.0V
VDD=3.6V RL=8Ω, 400Hz-30kHzBPF
Po=25mW
Po=100mW
Po=250mW
RL=4Ω, f=1kHz, 400Hz-30kHz BPF
Po = 25mW
RL=4Ω, f=1kHz, 400Hz-30kHz BPF
Output Power vs Power Supply
100
VDD = 2.5V
3
0.1
Frequency [Hz]
Output Power [W]
3.5
Figure.11
Figure.13
Figure.15
Po = 100mW
Fig.17
Fig.19
Fig.15
VDD[V]
VDD = 3.6V
1k
4
Po = 250mW
4.5
1
Technical Note
2010.09 - Rev.A
THD+N≦1%
10k
VDD = 5.0V
5
5.5
100k
10
6