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MITSUBISHI SOUND PROCESSORS ICs
M62456FP
DIGTAL SOUND CONTROLLER
DESCRIPTION
The M62456FP Integrated Circuit is developed
for audio-visual equipment. It being used for
controld sound in the power amplifier front
stage. It has BASSBOOST circuit corresponding
to BTL type driver.
FEATURES
24pin SSOP
Build in diode clip circuit
Corresponding to BTL type driver.
Boost level control (3 steps)
RECOMMENDED OPERATING CONDITIONS
Supply voltage range • • • •VCC=+4.5 to 7.5V, VEE=-4.5 to -7.5V
Rated supply voltage • • • • VCC=+7V, VEE=-7V
PIN CONFIGURATION (TOP VIEW)
HPF1-1
HPF1-2
NF1
OUT1
VCC
LRNF
B1
B2
LEVEL1
LEVEL2
GND
INVLPF
10
11
12
1
2
3
4
5
6
7
8
9
24
23
22
21
20
19
18
17
16
15
14
13
HPF2-1
HPF2-2
NF2
OUT2
VEE
CIN
LROUT
VR
HPF3-1
HPF3-2
LPF1
LPF2
BLOCK DIAGRAM
CH1
CH2
+
+
M62456FP
LIMITER
HPF
HPF
BPF
+
CH1
+
Low
Tone
(BTL)
-
+
CH2
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BLOCK DIAGRAM
MITSUBISHI SOUND PROCESSORS ICs
M62456FP
DIGTAL SOUND CONTROLLER
HPF1-1
HPF1-2
NF1
OUT1
VCC
LRNF
B1
1
2
3
4
5
6
7
22K
Diode Clip
+
+
15K
VCC
10K
VEE
27K
22K
3.3K
24
23
22
21
20
19
18
HPF2-1
HPF2-2
NF2
OUT2
VEE
CIN
LROUT
B2
LEVEL 1
LEVEL 2
GND
INVLPF
8
9
10
11
12
3.9K
1.8K
22K
22K
17
16
15
14
13
VR
HPF3-1
HPF3-2
LPF1
LPF2
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MITSUBISHI SOUND PROCESSORS ICs
PIN DESCRIPTION
M62456FP
DIGTAL SOUND CONTROLLER
Pin No.
1
24
2
23
3
Symble
HPF1-1
HPF2-1
HPF1-2
HPF2-2
NF1
Function
Input pin of highpass
filter 1
Input pin of highpass
filter 2
Output pin of highpass
filter 1
Output pin of highpass
filter 2
Inverse Input 1
DC
voltage
0V
0V
0V
Equivalent circuit
1
24
Vcc
220u
VEE
Vcc
220u
VEE
25uA
25uA
3
Vcc
VEE
2
23
Vcc
22
22
4
21
5
6
NF2
OUT1
OUT2
Vcc
LRNF
Inverse Input 2
Output 1
Output 2
Positive Power
Supply
LR Mixing
Amplifire input
0V
0V
7V
0V
Vcc
VEE
220u
5
25uA
VEE
4
VCC
Vcc
VEE
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3
21
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MITSUBISHI SOUND PROCESSORS ICs
Adjustment of limiter
amplitude
Output of lowpass filter
( inverse type)
Output of highpass filter
3
PIN DESCRIPTION
M62456FP
DIGTAL SOUND CONTROLLER
Pin No.
7
8
17
9
10
11 GND 0V
12
Symble
B1
B2
VR
LEVEL1
LEVEL2
INVLPF
Function
Limiting output
LEVEL SW1
LEVEL SW2
Ground pin
DC
voltage
0V
0V
8
Vcc
VEE
Equivalent circuit
7
Vcc
9
VEE
11
200u
Vcc
17
VEE
10
12
13 LPF2
14
16
15
LPF1
HPF3-1
HPF3-2
Output of lowpass
filter
Input of lowpass filter
Input of highpass filter
3
0V
0V
0V
Vcc
VEE
14
16
Vcc
VEE
200u
13
Vcc
25uA
VEE
200u
18
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MITSUBISHI SOUND PROCESSORS ICs
PIN DESCRIPTION
M62456FP
DIGTAL SOUND CONTROLLER
Pin No.
18
19
20
Symble
LROUT
CIN
VEE
Function
Output of LR
Mixing amplifier
Input of the output
amplifier
(non inverse )
Negative Power
Supply
DC
voltage
0V
0V
-7V
Equivalent circuit
Vcc
200u
VEE
19
5
25uA
18
Vcc
VEE
VEE
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ABSOLUTE MAXIMUM RATINGS
Parameter
Condition
Ratings
Unit
VCC
PdKTopr
Tstg
Supply voltage
Power dissipation
Thermal derating
Operating temperature
Storage temparature
+8
-20 to +75
-40 to +125
VmWmW/ °C
°C°C-8
VEEVTa ≥ 25°C
5075100
125
150
800
1200
Length : 30mm/lead
600
(Ta=25 ,unless otherwise notes)
Symble
MITSUBISHI SOUND PROCESSORS ICs
M62456FP
DIGTAL SOUND CONTROLLER
(on reference PCB)
1000
950
475
400
200
0
25
0
Ambient temperature Ta (°C )
950
9.5
RECOMMENDED OPERATING CONDITIONS
*Reference PCB
Size : 70mm * 70mm
Thickness : 1.6mm
Material : Glass ebonite
Single side copper place
Copper plane dimension
Thickness : 1.8um
Width : 0.25mm
Supply voltage range • • • • VCC=+4.5 to 7.5V, VEE=-4.5 to -7.5V
Rated supply voltage • • • • VCC=+7V, VEE=-7V
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MITSUBISHI SOUND PROCESSORS ICs
ELECTRICAL CHARACTERISTICS
Parameter
Unit
Limits
Min.
Typ.
Max.
Condition
ICC
Curcuit current +
IEE
no signal
mA
mA
Gain
dB
Vomax
THD=1%
Vrms
Vno
Output noise voltage
IHF-A
uVrms
GvVR1
dB
LEVEL2="L"
dB
VL
LEVEL2="L"
LEVEL2="H"
Curcuit current -
no signal
DIGTAL SOUND CONTROLLER
(Ta=25°C, VCC=7V, VEE=-7V, f=1kHz, Vin=-30dBV, unless otherwise notes)
Symbol
M62456FP
Gv
GvVR2
GvVR3
Maximum output voltage
VRpin voltage gain1
VRpin voltage gain
VRpin voltage gain3
Limiter amplitude
LEVEL1="L"
LEVEL1="H"
LEVEL1="L"
VRpin OUT
(THD=10%)
-
-2
2.5
-
-2
-12
0.3
5
-5-10
0
4
7
0
-5
-9 -6
0.6 Vrms
10
-
2
-
18
2
-2-8
dB
0.9
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MITSUBISHI SOUND PROCESSORS ICs
M62456FP
DIGTAL SOUND CONTROLLER
TEST CURCUIT
< R >
OUT1
VCC=+7V
47K
10u
10K
47K
33K
15K
22K
100u
0.068u
0.068u
+
100P
15K
0.082u
22K
10u
10K
100u
Vi
10u
2
43K
< L >
OUT2
VEE=-7V
Vi
10u
1
2
IN1< R >
IN2< L >
1
+
2
22K
3
15K
+
10K
22K
4
5
VCC
VEE
1
0.047u
24
0.047u
23
22
100P
21
20
LEVEL1
LEVEL2
27K
820K
4.7K
47u
4.7K
47u
15K
820K
27K
+
+
6
7
8
9
10
11
12
Diode Clip
3.9K
1.8K
22K
22K
27K
3.3K
19
18
17
16
270K
15
14
4700P
13
+
33u
0.068u
0.033u
8.2K
82K
VROUT
15K
0.15u
82K
0.1u
10K
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APPLICATION EXAMPLE
MITSUBISHI SOUND PROCESSORS ICs
M62456FP
DIGTAL SOUND CONTROLLER
VCC=+7V
47K
47K
LEVEL1
LEVEL2
33K
15K
22K
100u
IN1< R >
0.068u
27K
820K
4.7K
47u
4.7K
47u
15K
0.068u
100P
+
820K
27K
+
+
1
2
3
4
5
6
Diode Clip
7
8
9
10
11
12
22K
3.9K
1.8K
+
22K
+
15K
VCC
22K
10K
VEE
27K
22K
3.3K
0.047u
24
23
22
100P
21
20
19
18
17
16
270K
15
14
4700P
13
0.047u
0.082u
0.068u
0.033u
8.2K
82K
IN2< L >
43K
15K
22K
100u
+
33u
15K
0.15u
82K
0.1u
VEE=-7V
10K
Power amplifire
- +
middle & high lange
< R >
OUT1
bass lange
(BTL)
Power amplifire
+
< L >
OUT2
-+-
middle & high lange
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