MM1124C [MITSUMI]
Bass Amplifier; 低音功放
| 型号： | MM1124C |
| 厂家： | 
MITSUMI ELECTRONICS, CORP. |
| 描述： | Bass Amplifier |
| 文件： | 总5页 (文件大小：105K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Bass Amplifier MM1124
MITSUMI
Bass Amplifier
Monolithic IC MM1124
Outline
This IC was developed to boost bass on TV and free-standing VCR decks, etc.
The recent trend toward large-screen TV and movie software has increased the demand for powerful bass
and wider sound, so that the bass boost function has become part of TV and VCR functions.
This IC was designed especially for bass, and easily reproduces a powerful sound.
Features
1. Dynamic bass boost
Boost can be adjusted higher for lower sound, and smaller for bigger sound.
2. Boost switching pin
Boost amount can be switched for music and video software, giving a change to the set
3. High range boost
By boosting the high range as well, a more realistic sound is reproduced
4. Boost attack circuit
Gives quick response and follows sudden volume changes
Package
SOP-16B (MM1124AF, MM1124BF, MM1124CF)
DIP-16B (MM1124AD, MM1124BD)
Series Table
Boost
Boost start
input level
+3dBm
Model name
FULL
19dB
12dB
8dB
1/2
14dB
8dB
4dB
MM1124A
MM1124B
MM1124C
+3dBm
-14dBm
Note 1 : Boost amounts for are input level of
-37.8dBm
Note 2 : The above are reference values, and may vary depending on the
specifications.
°
(Ta=25 C)
Absolute Maximum Ratings
Item
Symbol
TSTG
Ratings
40~+125
Units
°
C
Storage temperature
Operating temperature
Power supply voltage
Operating voltage
-
°
C
TOPR
-20~+70
VCC max.
VCC
-0.3~+15
V
V
+5~+12
350 (SOP-16B)
1200 (DIP-16B)
Allowable loss
Pd
mW
Bass Amplifier MM1124
Min. Typ. Max. Units
MITSUMI
°
(Ta=25 C)
Electrical Characteristics
Measurement conditions
Item
Rank
SW
FULL
f (Hz)
1k
VIN (dBm)
Consumption current
Voltage gain
-
7.8
6.6
0
9.0 mA
Through
FULL
FULL
FULL
1/2
1k
-
7.8
-
1
+1
21
14
10
dB
dB
dB
dB
A
B
C
A
B
C
100
100
100
100
100
100
1k
-
-
-
-
-
-
37.8
37.8
37.8
37.8
37.8
37.8
17
10
6
19
12
8
Boost 1 (Bst1)
Boost 2
Bst1-6 Bst1-5 Bst1-4 dB
Bst1-5 Bst1-4 Bst1-3 dB
Bst1-5 Bst1-4 Bst1-3 dB
1/2
1/2
FULL
1/2
-
-
7.8
7.8
7.8
7.8
0.1
0.1
0.3
0.3
%
%
Total harmonic distortion ratio
1k
Through
FULL
FULL
FULL
Through
FULL
Through
FULL
Through
FULL
Through
FULL
1/2
1k
-
0.03 0.1
50 44
2.4
%
Crosstalk
1k
-
-
-
dB
Vrms
Maximum output voltage
THD=10%
1.8
VIN=0V, 30kHzLPF
250 500 µVrms
Output noise voltage
Rg=10kΩ
25
50
µVrms
dB
dB
dB
dB
dB
dB
V
-
32
48
36
48
42
56
-
26
42
30
42
34
48
A
B
C
-
-
-
-
-
-
-
-
-
-
Superimpose VR=0dB
(100Hz, 100mVrms) on
VCC and measure output
pin
Ripple rejection rate
1k
1k
1k
-
-
-
7.8
7.8
7.8
0
0.3
1.6
9
SW pin voltage range
1.2
2.5
V
Through
V
Note : No rank indication means common rank
Bass Amplifier MM1124
MITSUMI
Block Diagram/ Application Circuits
Characteristics
Boost amount-Input level (rank A)
20
SW:FULL
15
10
SW:1/2
5
0
-5
-
10
-
50
-40
-30
-20
-10
0
10
Input level (dB)
Output level-Frequency (rank A) SW : FULL
10
0
-2.2dBm
-10
-20
-30
-40
-
7.8dBm
-37.8dBm
101
102
103
104
105
Frequency (Hz)
Bass Amplifier MM1124
MITSUMI
Boost amount-Input level (rank B)
20
15
10
5
SW:FULL
SW:1/2
0
-5
-
10
-
50
-40
-30
-20
-10
0
10
Input level (dB)
Output level-Frequency (rank B) SW : FULL
10
0
-2.2dBm
-10
-20
-30
-40
-
7.8dBm
-37.8dBm
101
102
103
104
105
Frequency (Hz)
Boost amount-Input level (rank C)
20
15
10
SW:FULL
5
SW:1/2
0
-5
-
10
-
50
-40
-30
-20
-10
0
10
Input level (dB)
Output level-Frequency (rank C) SW : FULL
10
0
-
-
2.2dBm
7.8dBm
-
-
-
-
10
20
30
40
-37.8dBm
101
102
103
104
105
Frequency (Hz)
Bass Amplifier MM1124
MITSUMI
THROUGH distortion rate characteristics (VCC=9V, f=1kHz)
101
(%)
100
-1
10
-2
10
-30
-20
-10
0
10
Input level (dBm)
CH Crosstalk
-
-
-
-
-
30
(dB)
40
50
60
Rank A
Rank B
Rank C
70
101
102
103
104
105
Frequency (Hz)
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