BD5446EFV 查看數據表（PDF） - ROHM Semiconductor
零件编号
产品描述 (功能)
生产厂家
BD5446EFV Datasheet PDF : 32 Pages
| |||
BD5446EFV
Technical Note
●Electrical characteristic curves(VCC=13V,Ta=25℃,RL_SP=8Ω,RL_DA=20kΩ,Gain=20dB,fin=1kHz,fs=48kHz)
Measured by ROHM designed 4 layer board.
100
90
80
70
Sampling
60
50
40
Mute
30
20
10
0
8 10 12 14 16 18 20 22 24 26 28
VCC(V)
Fig.1
Current consumption
- Power supply voltage
44
40
36
THD=10%
32
28
24
20
16
THD=1%
12
8
4
0
8 10 12 14 16 18 20 22 24 26 28
VCC(V)
Fig.2
Output power
- Power supply voltage
3
VCC=13V
2
VCC=18V
1
0
0 5 10 15 20 25 30 35 40
TOTAL OUTPUT POWER(W)
Fig.3
Current consumption
- Output power
100
90
80
70
60
50
40
30
20
10
0
0
2 4 6 8 10 12
OUTPUT PO WER(W/ch)
Fig.4
Efficiency - Output power
30
28 Po=1W
26 L=22µH
24 C=0.47µF
22 Cg=0.068µF
20
18
16
14
12
10
10 100 1k 10k 100k
FREQUENCY(Hz)
Fig.5
Voltage gain - Frequency
0
-20 Without signal
BW=20～20KHz
-40
-60
-80
-100
-120
-140
10
100 1k 10k
FREQUENCY(Hz)
100k
Fig.6
FFT of Output noise voltage
100
BW=20～20KHz
10
1
6KHz
1KHz
0.1
100Hz
0.01
0.001 0.01 0.1 1 10 100
OUTPUT POWER(W)
Fig.7
THD+N - Output power
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
Po=1W
BW=20～20KHz
10 100 1k 10k 100k
FREQUENCY(Hz)
Fig.10
Crosstalk –Frequency
100
Po=1W
BW=20～20KHz
10
1
0.1
0.01
10
100 1k 10k 100k
FREQUENCY(Hz)
Fig.8
THD+N - Frequency
fin=300Hz
Po=3.3W
5V/div
Speaker output
2V/div
MUTEX
10ms/div
Fig.11
Wave form when
Releasing Soft-mute
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
BW=20～20KHz
0.001 0.01 0.1
1
10
OUTPUT POWER(W)
Fig.9
Crosstalk - Output power
Speaker output
fin=300Hz
Po=3.3W
5V/div
MUTEX
2V/div
10ms/div
Fig.12
Wave form when
Activating Soft-mute
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
4/31
2011.06 - Rev.C
Share Link: 