BD5446EFV Rohm, BD5446EFV Datasheet - Page 5

• Manufacturer Part Number: BD5446EFV
• Description: Class-D Speaker Amplifier
• Manufacturer: Rohm

●Electrical characteristic curves(V
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BD5446EFV
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Measured by ROHM designed 4layer board.
0.01
-100
100
100
0.1
-10
-20
-30
-40
-50
-60
-70
-80
-90
90
80
70
60
50
40
30
20
10
10
0
1
0.001 0.01
0
0
Efficiency – Output power
10
Crosstalk - Frequency
THD+N - Output power
BW=20～20KHz
Po=1W
BW=20～20KHz
OUTPUT POWER(W /ch)
OUTPUT POWER(W)
5
100
FREQUENCY(Hz)
0.1
Fig.19
Fig.16
Fig.13
6KHz
10
1k
1
100Hz
1KHz
10k
15
10
100k
100
20
CC
=18V,Ta=25℃,R
40
38
36
34
32
30
28
26
24
22
20
0.01
100
0.1
10
10
1
Voltage gain - Frequency
10
Po=1W
L=22µH
C=0.47µF
Cg=0.068µF
THD+N - Frequency
L_SP
Po=1W
BW=20～20KHz
100
FREQUENCY(Hz)
100
FREQUENCY(Hz)
=8Ω,R
5/30
Fig.17
Fig.14
1k
1k
L_DA
10k
10k
=20kΩ,Gain=20dB,fin=1kHz,fs=48kHz)
100k
100k
-100
-120
-140
FFT of output noise voltage
-100
-20
-40
-60
-80
-10
-20
-30
-40
-50
-60
-70
-80
-90
Crosstalk - Output power
0
0
0.001 0.01
10
Without signal
BW=20～20KHz
BW=20～20KHz
OUTPUT POWER(W)
100
FREQUENCY(Hz)
Fig.18
Fig.15
0.1
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Technical Note
2010.05 - Rev.B
1k
1
10k
10
100k
100