MM1104AF 반도체 회로 부품 판매점
Monolithic IC
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 ETC |
MITSUMI
IC for Headphone Stereos
Monolithic IC MM1104
IC for Headphone Stereos MM1104
Outline
This IC was developed for use in 3 V headphone stereos. It incorporates all the basic functions of tape
players.
Mitsumi has previously offered the LAG665, LAG668, LAG673 and MM1006 as one-chip versions. However,
this IC is the result of a through review and redesign extending to circuit details.
Features
1. Configuration: Pre-and power amp, motor control
2. Adoption of shock noise prevention circuitry
Through the use of a circuit which suppresses noise occurring when the power supply is turned on and off,
noise output is reduced without muting.
3. Stable motor speed control circuit
A bridge circuit employing power transistors provides motor speed control with minimal drift.
4. Preamp off pin is convenient for radio connections
5. Radiation pin: When radio wave-induced noise is a problem, this pin can be used to cut the frequency
characteristic.
Package
SOP-28B (MM1104AF, MM1104BF, MM1104CF)
Pin Assignment
28 27 26 25 24 23 22 21 20 19 18 17 16 15
1 2 3 4 5 6 7 8 9 10 11 12 13 14
SOP-28B
1
1/2VCC
15
2
PreIN1
16
3
NFB1
17
4
PreOUT1
18
5
Pre Off
19
6
PowerIN1
20
7
Radiation1
21
8 PowerOUT1 22
9
GND
23
10 Governor VCC 24
11 N.C 25
12 PCOUT 26
13 GND 27
14 Governor GND 28
N.C
Speed
Phase
VS
PowerOUT2
Amp VCC
Filter
Radiation2
PowerIN2
N.C
PreOUT2
NFB2
PreIN2
Amp GND
MITSUMI
IC for Headphone Stereos MM1104
Absolute Maximum Ratings
Item
Operating temperature
Storage temperature
Power supply current
Power consumption
Operating voltage
Symbol
TOPR
TSTG
VCC
Pd
Vop
Ratings
-20~+65
-40~+125
-0.3~+7.5
700 (Ta=25°C)
+2.0~+5.0
Units
°C
°C
V
mW
V
Electrical Characteristics (Except where noted otherwise, Ta=25°C)
Item
Symbol
Measurement conditions Min. Typ. Max. Units
Consumption current
ICC
Amp. only
11 18 mA
Preamp unit (Ta=25°C)
Open-circuit gain
GVo Vo=-10dBm f=100Hz
86 dB
Closed-circuit gain
GVc
Vo=-10dBm
42 dB
Maximum output voltage
Vom
THD=10%
0.5 0.74
Vrms
Total harmonic distortion ratio
THD
Vo=-10dBm
0.06 0.5 %
Output noise voltage
Vno Rg=2.2kΩ, CCIR waiting
240 500 µVrms
Crosstalk between channels
CHCT
Vo=-10dBm
45 60
dB
Ripple rejection
RR VCC=3V, VR=-20dBm, fR=100Hz 30 42
dB
Output voltage with preamp off
VoOff Vo=-10dBm, when pre operation
-100 -70 dBm
Input resistance with preamp off RiOff
7 10 13 kΩ
Output resistance with preamp off RoOff
7 10 13 kΩ
Measurement conditions: Except where noted otherwise, VCC=3V, Rg=2.2kΩ, RL=30kΩ, f=1kHz
Power amp unit (Ta=25°C)
Input resistance
Ri
14 20 26 kΩ
Voltage gain
Gv
Po=5mW
32 34 36 dB
Voltage gain difference between channels
Gv
0 2 dB
Maximum output power I
Pom1
THD=10%, RL=16Ω
40 62
mW
Maximum output power II
Pom2
THD=10%, RL=32Ω
20 34
mW
Total harmonic distortion ratio
THD
Po=5mW
0.4 2 %
Crosstalk between channels
CHCT
Po=5mW
45 62
dB
Output noise voltage
Vn Rg=1kΩ, CCIR waiting
150 300 µVrms
Ripple rejection
RR VCC=3V, VR=-20dBm, fR=100Hz 40 50
dB
Measurement conditions: Except where noted otherwise, VCC=3V, Rg=1kΩ, RL=16Ω, f=1kHz
Motor governor (Ta=25°C)
Consumption current
Id
A2 measured
2.0 7.0 mA
Startup current
IMS
IM measured when RV=1.5Ω
500
mA
Reference voltage
Vref V5 measured with SW12 off 0.09 0.10 0.11 V
Reference voltage fluctuation I
Vref1
VS fluctuation for
VCC=1.5 to 3.5V, VCC=3.0V ref.
0.1 0.5 %/V
Reference voltage fluctuation II
VS fluctuation for
Vref2
IM=25 to 200m A, IM=100mA ref.
0.005 0.05 %/mA
Reference voltage fluctuation III
Vref3
VS fluctuation for
Ta=-10 to 60°C, Ta=25°C ref.
0.01 %/°C
Output saturation voltage
VoSAT
Reference voltage V8 measured
IM=200mA with SW12 on
0.2 0.3 V
Bridge ratio
K
V7/V6 measured
9 10 11
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MM1104AF data
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
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