ChipFind - документация

Электронный компонент: MM1104CF

Скачать:  PDF   ZIP
MITSUMI
IC for Headphone Stereos MM1104
IC for Headphone Stereos
Monolithic IC 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
Package
Pin Assignment
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.
SOP-28B (MM1104AF, MM1104BF, MM1104CF)
SOP-28B
1
3
6
10
2
4 5
8
7
12
9
11
14
13
28
24
21
27
25
23 22
20
26
15
17 16
18
19
1
1/2V
CC
15
N.C
2
Pre
IN
1
16
Speed
3
NFB1
17
Phase
4
PreOUT1
18
V
S
5
Pre Off
19
PowerOUT2
6
Power
IN
1
20
Amp V
CC
7
Radiation1
21
Filter
8
PowerOUT1
22
Radiation2
9
GND
23
Power
IN
2
10
Governor V
CC
24
N.C
11
N.C
25
PreOUT2
12
PCOUT
26
NFB2
13
GND
27
Pre
IN
2
14
Governor GND
28
Amp GND
MITSUMI
IC for Headphone Stereos MM1104
Electrical Characteristics
(Except where noted otherwise, Ta=25
C)
Absolute Maximum Ratings
Item
Symbol
Ratings
Units
Operating temperature
T
OPR
-20~+65
C
Storage temperature
T
STG
-40~+125
C
Power supply current
V
CC
-0.3~+7.5
V
Power consumption
Pd
700 (Ta=25
C)
mW
Operating voltage
Vop
+2.0~+5.0
V
Item
Symbol
Measurement conditions
Min. Typ. Max. Units
Consumption current
I
CC
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=2.2k
, CCIR waiting
240
500
Vrms
Crosstalk between channels
CH
CT
Vo=-10dBm
45
60
dB
Ripple rejection
RR
V
CC
=3V, V
R
=-20dBm, f
R
=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
k
Output resistance with preamp off
RoOff
7
10
13
k
Measurement conditions: Except where noted otherwise, V
CC
=3V, Rg=2.2k
, R
L
=30k
, f=1kHz
Power amp unit (Ta=25
C)
Input resistance
Ri
14
20
26
k
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%, R
L
=16
40
62
mW
Maximum output power II
Pom2
THD=10%, R
L
=32
20
34
mW
Total harmonic distortion ratio
THD
Po=5mW
0.4
2
%
Crosstalk between channels
CH
CT
Po=5mW
45
62
dB
Output noise voltage
Vn
Rg=1k
, CCIR waiting
150
300
Vrms
Ripple rejection
RR
V
CC
=3V, V
R
=-20dBm, f
R
=100Hz
40
50
dB
Measurement conditions: Except where noted otherwise, V
CC
=3V, Rg=1k
, R
L
=16
, f=1kHz
Motor governor (Ta=25
C)
Consumption current
Id
A
2
measured
2.0
7.0
mA
Startup current
I
MS
I
M
measured when R
V
=1.5
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
V
CC
=1.5 to 3.5V, V
CC
=3.0V ref.
0.1
0.5
%/V
Reference voltage fluctuation II
Vref2
VS fluctuation for
I
M
=25 to 200m A, I
M
=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
I
M
=200mA with SW12 on
0.2
0.3
V
Bridge ratio
K
V7/V6 measured
9
10
11
MITSUMI
IC for Headphone Stereos MM1104
Block Diagram
(Example of Application Circuits)
Characteristics
10
1.0
0.1
0.01
10
100
1k
10k
Output voltage (mVrms)
R
L
=30k
f=1kHz
V
CC
=1.8V
V
CC
=2.0V
V
CC
=3.0V
THD-P
OUT
Total harmonic distortion ratio (%)
Preamp
10
1.0
0.1
0.01
10
100
1k
10k
Output voltage (mVrms)
V
CC
=1.8V
V
CC
=2.0V
V
CC
=3.0V
THD-V
OUT
R
L
=16
f=1kHz
Total harmonic distortion ratio (%)
Power amp
Item
Symbol
Measurement conditions
Min. Typ. Max. Units
Bridge ratio fluctuation I
K1
K fluctuation for
V
CC
=1.5 to 3.5V, V
CC
=3.0V ref.
0.1
0.2
%/V
Bridge ratio fluctuation II
K2
K fluctuation for
I
M
=25 to 200m A, I
M
=100mA ref.
0.05
0.2
%/mA
Bridge ratio fluctuation III
K3
K fluctuation for
Ta=-10 to 60
C, Ta=25
C ref.
0.01
%/
C
Measurement conditions: Except where noted otherwise, V
CC
=3V, IM=100mA, SW11=OFF, SW12=ON
MITSUMI
IC for Headphone Stereos MM1104
3000
2500
2000
1500
1000
500
0
2
4
6
8
10 12 14 16 18
Torque (g cm)
V
CC
=3.0V
V
CC
=1.8V
V
CC
=2.0V
Motor frequency (rpm)
N-T characteristic
30
20
10
40
1k
10k
100k
1M
10M
Frequency (Hz)
Voltage gain-frequecy
Gain (dB)
Power amp
60
50
40
30
20
10
0
0
-10
-20
-30
-40
Ripple rejection rate-volume knob attenuation
Attenuation at VR (dB)
Ripple rejection rate (dB)
Pre+power amp