Page 1
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
SRS 3D Stereo + SRS 3D Mono 1Chip
OUTLINE
M62494 has SRS 3D STEREO and SRS 3D
MONO.
There are three modes, those are SRS 3D stereo
SRS 3D mono and bypass.
Each mode can be set by terminals.
FEATURE
Each mode can be set by terminals.
Mute Function
M62494SP/FP
SOUND CONTROLLER FOR TV
PACKAGE OUTLINE
20P4B(SP)
APPLICATION
TV , Mini-Stereo , etc
RECOMMENDED OPERATING CONDITION
Supply voltage range 6 ~ 9.5V
Rated supply voltage 9V
SYSTEM BLOCK DIAGRAM
SRS3D Stereo
&
Pseudo Stereo
TV
20P2N(FP)
M62494SP/FP
SRS Mono
Bypass
SRS Stereo
SRS Mono
Bypass
SRS Stereo
MITSUBISHI
ELECTRIC
SRS
STEREO
ON/OFF
SRS
MONO
ON/OFF
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Page 2
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
Block Diagram
SRS STEREO
GND
12 11
13
M62494SP/FP
SOUND CONTROLLER FOR TV
MuteSRS MONO
10
Vcc
LOUT
PS
LPF
HPF
BPF
L+R
REF IN
REF OUT
14
16 15
18 17
19
20
7 8 9
SRS NL
6
SRS NR
STEREO
ROUT
5
MONO
SRS A
SRS PR
3 4
+
REF
LIN
RIN
1 2
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ELECTRIC
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Page 3
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Conditions Ratings Unit
Vcc Supply Voltage 13.0 V
Pd Power Dissipation 750(SP)/550(FP)
K Thermal Derating
Topr Operating Temperature
Ta≤25
Ta>25
M62494SP/FP
SOUND CONTROLLER FOR TV
mW
7.5(SP)/5.5(FP) mW/°C
-20 ~ 75
°C
Storage Temperature -40 ~ 125Tstg
Thermal Derating
1000
800
750
600
550
SP
FP
400
200
Power Dissipation Pd [ mW ]
°C
0
0
25 50 75 100
125 150
AMBIENT TEMPERATURE Ta [ C ]
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ELECTRIC
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Page 4
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
RECOMMENDED OPERATING CONDITION
Symbol Parameter Conditions Unit
Vcc
VIH
VIL
ELECTRICAL CHARACTERISTICS
(1) Power Supply Characteristics
Supply Voltage
High Level
Input Voltage
Low Level
Input Voltage
Pin-10,11,12
Pin-10,11,12
M62494SP/FP
SOUND CONTROLLER FOR TV
Min.
4.5 9.0 12.0
2.1
0
Typ. Max.
Vcc
0.8
V
V
V
Symbol Parameter Conditions Unit
Icc Circuit Current mA
Min.
Typ. Max.
16 35
(2) -1 Input / Output Characteristics (Vcc=9V, Ta=25°C, Vi=500mVrms, pin 10=0V)
Symbol
Gv1
Gv2
Parameter
Input - Output
Voltage Gain1
Input - Output
Voltage Gain2
Gv3
Input - Output
Voltage Gain3
Input - Output
Gv4
Gv5
Voltage Gain4
Input - Output
Voltage Gain5
VOM
THD
Maximum
Output Voltage
Total Harmonic
Distortion
MUTE MUTE
Conditions
Input Output
pin1,2 pin5,8
f=1kHz RL=10KΩ
pin1,2 pin5,8
f=1kHz RL=10KΩ
pin1,2 pin5,8
f=100Hz
pin1,2 pin 8
f=100Hz
pin1,2
f=10KHz
pin1,2
f=1kHz
pin1,2
f=1kHz
Vi=0dBm
pin1,2
f=1kHz
Vi=0dBm
RL=10KΩ +10+7
RL=10KΩ
pin 8
RL=10KΩ
pin5,8
THD=1%
IHF-A filter
RL=10KΩ
pin5,8
DIN-A filter
RL=10KΩ
pin5,8 Mute
IHF-A filter
RL=10KΩ
Conditions
Bypass
(pin11,12=0V)
SRS Stereo
(pin12=5V/pin11=0V)
SRS Stereo
(pin12=5V/pin11=0V)
SRS Mono
(pin12=0V/pin11=5V)
SRS Mono
(pin12=0V/pin11=5V)
Bypass
(pin11,12=0V)
Bypass
(pin11,12=0V)
(pin10=5V/pin11,12=0V)
Min.
Limit
Typ. Max.
0-3
+2.5-0.5 +5.5 dB
+7.5
+6 dB
2.21.8
55 45
+13
+10.5+4.5
+9.5+2.5
+3
Unit
dB
dB
dB
Vrms
%0.01 0.05
dB
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ELECTRIC
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Page 5
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
(Vcc=9V, Ta=25°C, pin 10=0V)
Symbol Parameter
VNO1 IHF-A filter 3
VNO2 IHF-A filter
VNO3
Output Noise
Voltage1
Output Noise
Voltage2
Output Noise
Voltage2
Conditions
IHF-A filter
Conditions
Bypass
(pin11,12=0V)
SRS Stereo
(pin12=5V/pin11=0V)
SRS Mono
(pin12=0V/pin11=5V)
M62494SP/FP
SOUND CONTROLLER FOR TV
Min.
Switch Condition and the Mode
Limit
Typ. Max.Input Output
30
30
10
100
100
Unit
µVrms
µVrms
µVrms
10
Mute
ON
OFF
12
SRS STEREO
ON
OFF
Mute
Switch
H
L
SRS ON/OFF
Switch
H
L
11 SRS MONO
ON
OFF
SRS MONO
Switch
H
L
* Bypass mode can be set by both SRS STEREO switch and
SRS MONO switch are set to "L".
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ELECTRIC
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Page 6
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
SRS Stereo/Mono/Bypass Version
R7
C4
2K
C1
R9
4K
0.1µ
Cref
10µ
0.0047µ
20
REF OUT
19
+
18 17 16 15
-
0.01µ
C2
C3
0.22µ
C5
M62494SP/FP
SOUND CONTROLLER FOR TV
SRS
MONO
ON/OFF
14
0.1µ
13
SRS
STEREO
ON/OFF
12 11
1 2
2.2µ
Rin1
REF
Lin1
2.2µ
3 4
C6
0.018µ
MONO
STEREO
5
C10
470p
2.2µ
Rout
6
C7
0.01µ
0.82µ
7 8 9
C9
1.5K
C8
R31
3K
470p
R32
2.2µ
Lout
10
MUTE
ON/OFF
VCC
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ELECTRIC
( / )
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Page 7
MITSUBISHI SOUND PROCESSOR
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
M62494SP/FP
SOUND CONTROLLER FOR TV
NOTE
Each switches (SRS ON/OFF, SRS MONO ON/OFF Switches)
does not have the countermeasure for click noise, so that we
recommend outside mute circuit.
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.
MITSUBISHI
ELECTRIC
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