參數(shù)資料
型號: BM5446EFV-E2
廠商: Rohm Semiconductor
文件頁數(shù): 8/11頁
文件大?。?/td> 0K
描述: IC AMP SPEAKER W/DSP HTSSOP-B54
標(biāo)準(zhǔn)包裝: 1,500
類型: D 類
輸出類型: 2 通道(立體聲)
在某負(fù)載時最大輸出功率 x 通道數(shù)量: 10W x 2 @ 8 歐姆
電源電壓: 10 V ~ 26 V
特點: 消除爆音,短路和熱保護(hù)
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: *
封裝/外殼: 54-VSSOP(0.295",7.50mm 寬)
包裝: *
Technical Note
6/32
BM5446EFV
www.rohm.com
2010.05 - Rev.B
2010 ROHM Co., Ltd. All rights reserved.
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
100
1k
10k
100k
FREQUENCY(Hz)
C
R
O
S
ST
A
LK(
dB
)
Po=1W
BW=20~20KHz
Electrical characteristic curves(VCC=13V,RL_SP=8,RL_DA=20k,Gain=20dB,fin=1kHz,fs=48kHz,by passing DSP)
Measured by ROHM designed 4 layer board.
0
10
20
30
40
50
60
70
80
90
100
8 1012141618 2022242628
VCC(V)
ICC(
m
A
)
Fig.1
0
1
2
3
0
5
10
15
20 25
30
35
40
TOTAL OUTPUT POWER(W)
ICC(
A
)
0
4
8
12
16
20
24
28
32
36
40
44
8 10 121416 18202224 2628
VCC(V)
O
UT
P
UT
P
O
W
E
R(
W
/c
h)
0
10
20
30
40
50
60
70
80
90
100
02
468
10
12
OUTPUT POWER(W/ch)
E
F
ICI
E
NCY
(%
)
Fig.2
Fig.3
Fig.4
Fig.5
Fig.6
Fig.7
Fig.8
Fig.9
Fig.10
Fig.11
Fig.12
Current consumption
- Power supply voltage
Output power
- Power supply voltage
Current consumption
- Output power
Efficiency - Output power
THD+N - Output power
THD+N - Frequency
Crosstalk - Output power
Crosstalk - Frequency
Wave form when
Releasing Soft-start
Sampling
Mute
10
12
14
16
18
20
22
24
26
28
30
10
100
1k
10k
100k
FREQUENCY(Hz)
VO
LT
AG
E
G
AI
N
(d
B)
Po=1W
L=22H
C=0.47F
Cg=0.068F
-140
-120
-100
-80
-60
-40
-20
0
10
100
1k
10k
100k
FREQUENCY(Hz)
N
O
IS
E
FF
T(
dB
V
)
Without Signal
BW=20~20KHz
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0.001
0.01
0.1
1
10
OUTPUT POWER(W)
C
R
O
SS
T
A
LK(
dB)
BW=20~20KHz
fin=300Hz
Po=3.3W
5V/div
2V/div
Speaker output
10ms/div
MUTEX
Speaker output
MUTEX
10ms/div
fin=300Hz
Po=3.3W
2V/div
5V/div
0.01
0.1
1
10
100
0.001 0.01
0.1
1
10
100
OUTPUT POWER(W)
T
HD+
N(
%
)
BW=20~20KHz
100Hz
1KHz
6KHz
THD=10%
THD=1%
VCC=13V
VCC=18V
Voltage gain - Frequency
FFT of Output noise voltage
Wave form when
Activating Soft-mute
0.01
0.1
1
10
100
10
100
1k
10k
100k
FREQUENCY(Hz)
T
HD+
N(
%
)
Po=1W
BW=20~20KHz
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