MITSUBISHI SOUND PROCESSOR
M62438FP
SRS 3D SOUND PROCESSOR
Simplified SRS 3D Sound Processor
OUTLINE
M62438FP is an SRS 3D sound processor
for PC, TV and audio equipment.
This IC has only simplified SRS circuit and
packed in a small 10-pin SOP.
FEATURES
• SRS 3D sound circuit
• SRS on/off function switch included
PACKAGE OUTLINE
10Pin SOP
APPLICATION
• PC, TV, Mini Stereo, etc
RECOMMENDED OPERATING CONDITION
SRS,the SRS logo,Sound Retrieval System and
"everything else is only stereo" are registered
trademarks of SRS Labs, Inc.
This device available only to licensees of SRS
Lab,Inc. Licensing and application information
may be obtained from SRS Lab, Inc.
Mitsubishi Electric Corporation assumes no
responsibility for any damage,or infringement of any
third-party's rights, originating in the use of any
product data, diagrams, charts or circuit application
examples contained in these materials.
Note !!
• Supply voltage range
• Rated supply voltage
4.5 to 12.0V
9V
SYSTEM BLOCK DIAGRAM
L
SRS 3D Sound
R
on/off
1
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MITSUBISHI SOUND PROCESSOR
M62438FP
SRS 3D SOUND PROCESSOR
BLOCK DIAGRAM
GND
OUT R
6
CNTL
SRS 3D SOUND
5
4
3
2
REF
MITSUBISHI
ELECTRIC
FILTER
OUT L
7
DIFF
8
IN L
IN R
REF IN
10
9
Vcc
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MITSUBISHI SOUND PROCESSOR
M62438FP
SRS 3D SOUND PROCESSOR
ABSOLUTE MAXIMUM RATINGS
Symbol
Vcc
Pd
K
T
opr
T
stg
Parameter
Supply Voltage
Power Dissipation
Thermal Derating
Operating Temperature
Storage Temperature
Conditions
Ratings
13.0
Unit
V
mW
mW/°C
°C
°C
Ta<25
Ta>25
400
4
-20 to 75
-40 to 125
Thermal Derating
500
Power Dissipation Pd [ mW ]
400
300
200
100
25
50
75
100
125
150
AMBIENT TEMPERATURE Ta [ °C ]
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MITSUBISHI SOUND PROCESSOR
M62438FP
SRS 3D SOUND PROCESSOR
RECOMMENDED OPERATING CONDITION
Symbol
Vcc
V
IH
V
IL
Parameter
Supply Voltage
High Level
Input Voltage
Low Level
Input Voltage
Pin-7
(SRS on)
Pin-7
(SRS off)
Conditions
Min.
4.5
2.1
0
Typ. Max.
9.0
12.0
VDD
0.8
Unit
V
V
V
ELECTRICAL CHARACTERISTICS
(1) Power Supply Characteristics
Symbol
Icc
Parameter
Circuit Current
Conditions
Min.
Typ. Max.
15
30
Unit
mA
(2) -1 Input / Output Characteristics (Vcc=9V, Ta=25°C, Vi=500mVrms)
Symbol
Gv1
Gv2
Gv3
Gv4
V
OM
THD
Parameter
Input - Output
Voltage Gain1
Input - Output
Voltage Gain2
Input - Output
Voltage Gain3
Input - Output
Voltage Gain4
Conditions
Input
Output
f=1kHz
f=1kHz
R
L
=10KΩ
R
L
=10KΩ
Conditions
SRS off
SRS on
SRS on
SRS on
SRS on/off
SRS off
Limit
Min.
Typ.
Max.
Unit
dB
dB
dB
dB
V
rms
-3
0
+3
+9.5
+3.5 +6.5
f=100Hz R
L
=10KΩ
f=10KHz R
L
=10KΩ
THD=1%
IHF-A filter
R
L
=10KΩ
+9.5 +12.5 +15.5
+7
1.8
+10
2.2
+13
Maximum
f=1kHz
Output Voltage
Total
Harmonic
Distortion
Output Noise
Voltage1
Output Noise
Voltage2
f=1kHz
DIN-A filter
Vi=-10dBv R
L
=10KΩ
IHF-A filter
IHF-A filter
0.01
0.05
%
V
NO1
V
NO2
SRS off
SRS on
5
50
10
µVrms
100 µVrms
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MITSUBISHI SOUND PROCESSOR
M62438FP
SRS 3D SOUND PROCESSOR
APPLICATION EXAMPLE
IN L
SRS on/off
22µF
OUT L
GND
2.2µ
2.2µ
10
9
8
7
6
REF
SRS 3D SOUND
1
2
2.2µ
1K
3
0.47µ
4
5
2.2µ
VCC
100K
1.5K
31.6K
IN R
4.7K
47K
0.47µ
OUT R
0.0047µ
3.6K
Unit R:Ω
C: F
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