Simplified SRS 3D Sound Processor
OUTLINE
MITSUBISHI SOUND PROCESSOR
M62438FP
SRS 3D SOUND PROCESSOR
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
APPLICATION
• PC, TV, Mini Stereo, etc
RECOMMENDED OPERATING CONDITION
• Supply voltage range 4.5 to 12.0V
• Rated supply voltage 9V
PACKAGE OUTLINE
10Pin SOP
Note !!
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.
SYSTEM BLOCK DIAGRAM
L
SRS 3D Sound
R
on/off
MITSUBISHI
ELECTRIC
1
( / )
12
1
BLOCK DIAGRAM
MITSUBISHI SOUND PROCESSOR
M62438FP
SRS 3D SOUND PROCESSOR
GND
CNTL
OUT L
IN L
REF IN
6
7
8
9
10
REF
SRS 3D SOUND
5
OUT R
FILTER
4
DIFF
3
IN R
1 2
Vcc
MITSUBISHI
ELECTRIC
( / )
12
2
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Conditions Ratings Unit
Vcc Supply Voltage 13.0 V
MITSUBISHI SOUND PROCESSOR
M62438FP
SRS 3D SOUND PROCESSOR
Pd Power Dissipation 400
K
Topr Operating Temperature
Thermal Derating 4
Ta>25
-20 to 75
Thermal Derating
500
400
300
mWTa<25
mW/°C
°C
°CStorage Temperature -40 to 125Tstg
200
100
Power Dissipation Pd [ mW ]
25 50 75 100
AMBIENT TEMPERATURE Ta [ °C ]
MITSUBISHI
ELECTRIC
125 150
( / )
12
3
RECOMMENDED OPERATING CONDITION
MITSUBISHI SOUND PROCESSOR
M62438FP
SRS 3D SOUND PROCESSOR
Symbol Parameter Conditions
Vcc Supply Voltage V
VIH
VIL
ELECTRICAL CHARACTERISTICS
(1) Power Supply Characteristics
Symbol Parameter Conditions Unit
Icc Circuit Current mA
(2) -1 Input / Output Characteristics (Vcc=9V, Ta=25°C, Vi=500mVrms)
Symbol
Gv1
Parameter
Input - Output
Voltage Gain1
High Level
Input Voltage
Low Level
Input Voltage
Conditions
Input Output
f=1kHz RL=10KΩ
Pin-7
(SRS on)
Pin-7
(SRS off)
SRS off
Min. Typ. Max.
4.5 9.0 12.0
2.1
0
Min.
Conditions
Typ. Max.
15 30
VDD
Min.
0.8
Limit
Typ. Max.
0-3
Unit
V
V
Unit
+3 dB
Gv2
Gv3
Gv4
VOM
THD
VNO1
VNO2
Input - Output
Voltage Gain2
Input - Output
Voltage Gain3
Input - Output
Voltage Gain4
Maximum
Output Voltage
Total
Harmonic
Distortion
Output Noise
Voltage1
Output Noise
Voltage2
f=1kHz RL=10KΩ
f=100Hz RL=10KΩ
f=10KHz RL=10KΩ
THD=1%
f=1kHz
f=1kHz
Vi=-10dBv
IHF-A filter
RL=10KΩ
DIN-A filter
RL=10KΩ
IHF-A filter
IHF-A filter
MITSUBISHI
ELECTRIC
SRS on
SRS on
SRS on
SRS on/off
SRS off
SRS off
SRS on
+6.5+3.5 +9.5
+12.5+9.5 +15.5
+10+7 +13
2.21.8
5 10
50 100
( / )
dB
dB
dB
Vrms
%0.01 0.05
µVrms
µVrms
124