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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.
PIN CONFIGURATION (TOP VIEW)
HPF1-1 HPF1-2 NF1 OUT1 VCC LRNF B1 B2 LEVEL1 LEVEL2 GND INVLPF 1 2 3 4 5 6 7 8 9 10 11 12 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
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 BLOCK DIAGRAM
M62456FP HPF CH1
+ + +
CH1
Low Tone (BTL)
-
LIMITER
BPF
+
CH2
HPF
+
CH2
(1 /
9
)
MITSUBISHI SOUND PROCESSORS ICs
M62456FP
DIGTAL SOUND CONTROLLER
BLOCK DIAGRAM
HPF1-1
1
+
24
HPF2-1
HPF1-2
2
22K 22K 15K + 10K
23
HPF2-2
NF1
3
22
NF2
OUT1
4
21
OUT2
VCC
5
VCC
VEE
20
VEE
LRNF
6
Diode Clip
27K
19
CIN
B1
7
3.3K
18
LROUT
B2
8
3.9K
17
VR
LEVEL 1
9
1.8K
16
HPF3-1
LEVEL 2
10
15
HPF3-2
GND
11 22K
14
LPF1
INVLPF
12
22K
13
LPF2
(2 /
9
)
MITSUBISHI SOUND PROCESSORS ICs
M62456FP
DIGTAL SOUND CONTROLLER
PIN DESCRIPTION
Pin No. Symble Function
Input pin of highpass filter 1 DC voltage
Equivalent circuit
Vcc 1 25uA
1 24
HPF1-1
0V HPF2-1
Input pin of highpass filter 2
24
VEE Vcc 220u Output pin of highpass filter 1
2
HPF1-2
0V
2
VEE Vcc 220u Output pin of highpass filter 2
23
HPF2-2
0V
VEE
23
3 22 4
NF1
Inverse Input 1 0V
25uA
3
Vcc 22
NF2
Inverse Input 2
VEE Vcc 220u
OUT1
Output 1 0V
4 21 VEE
21 5
OUT2 Vcc
Output 2 Positive Power Supply 7V
5
VCC
Vcc 6
25uA
6
LRNF
LR Mixing Amplifire input
0V
VEE
(3/
9
)
MITSUBISHI SOUND PROCESSORS ICs
M62456FP
DIGTAL SOUND CONTROLLER
PIN DESCRIPTION
Pin No. 7 8 17 9 10 11 Symble B1 B2 VR LEVEL1 LEVEL2 GND Function
Adjustment of limiter amplitude DC voltage
Equivalent circuit
Vcc 17 8
0V
Limiting output LEVEL SW1 LEVEL SW2 Ground pin VEE 7 Vcc 9 10 VEE
0V
Vcc 200u
11
12
INVLPF
Output of lowpass filter ( inverse type)
0V
12
VEE Vcc 200u
13
LPF2
Output of lowpass filter
0V
13
VEE Input of lowpass filter 25uA Vcc
14
LPF1 HPF3-1
14
0V 16
Input of highpass filter 3
16
VEE Vcc 200u 18
15
HPF3-2
Output of highpass filter 3
0V
VEE
(4
/
9
)
MITSUBISHI SOUND PROCESSORS ICs
M62456FP
DIGTAL SOUND CONTROLLER
PIN DESCRIPTION
Pin No. Symble Function
DC voltage
Equivalent circuit
Vcc 200u 18
18
LROUT
Output of LR Mixing amplifier
0V
VEE
19
CIN
Input of the output amplifier (non inverse ) Negative Power Supply
19
25uA
Vcc
0V
VEE
20
VEE
-7V
5
VEE
(5/
9
)
MITSUBISHI SOUND PROCESSORS ICs
M62456FP
DIGTAL SOUND CONTROLLER
ABSOLUTE MAXIMUM RATINGS
(Ta=25 ,unless otherwise notes) Symble VCC Supply voltage VEE Pd K Topr Tstg Power dissipation Thermal derating Operating temperature Storage temparature
(on reference PCB)
Parameter
Condition
Ratings +8 -8 950 9.5 -20 to +75 -40 to +125
Unit V V mW mW/ C C C
Ta 25C
1200 1000
950
800 600
475
400 200
0
0
25
50
75
100
125
150
Ambient temperature Ta (C )
*Reference PCB
Size : 70mm * 70mm Thickness : 1.6mm Material : Glass ebonite Single side copper place Copper plane dimension Thickness : 1.8um Width : 0.25mm Length : 30mm/lead
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
(6
/
9
)
MITSUBISHI SOUND PROCESSORS ICs
M62456FP
DIGTAL SOUND CONTROLLER
ELECTRICAL CHARACTERISTICS
(Ta=25C, VCC=7V, VEE=-7V, f=1kHz, Vin=-30dBV, unless
otherwise notes) Limits Min. -10 -2 Typ. 5 -5 0 4 7 0 -5 -9 0.6 Max. 10 2 18 2 -2 -6 0.9 Unit mA mA dB Vrms uVrms dB dB dB Vrms
Symbol ICC IEE Gv Vomax Vno GvVR1 GvVR2 GvVR3 VL
Parameter Curcuit current + Curcuit current Gain Maximum output voltage Output noise voltage VRpin voltage gain1 VRpin voltage gain VRpin voltage gain3 Limiter amplitude
Condition no signal no signal
THD=1% IHF-A
LEVEL1="L" LEVEL2="L" LEVEL1="H" LEVEL2="L" LEVEL1="L" LEVEL2="H" VRpin OUT (THD=10%)
2.5 -2 -8 -12 0.3
(7/
9
)
MITSUBISHI SOUND PROCESSORS ICs
M62456FP
DIGTAL SOUND CONTROLLER
TEST CURCUIT
1
Vi 10u 2 1
Vi 10u 2
IN1< R >
33K 0.068u
IN2< L >
0.047u 43K
1
0.068u 15K
24
+
0.047u 15K
2
22K 22K 15K +
22K 10u 100P
23
0.082u
3 OUT1
10K
22
100P 22K 10u 10K VEE=-7V
OUT2
4
10K VCC=+7V 100u 47K 47K +
21
5
VCC
VEE
20
100u
6
27K
27K
19
Diode Clip
7
820K 27K
3.3K
18
+ 33u
LEVEL1
820K
8
3.9K
17
0.068u 0.033u
VROUT
4.7K 47u
+
9
1.8K
16
270K 15K
4.7K 47u LEVEL2
+
10
15
8.2K 82K 0.15u 82K
11 22K 12
15K
14
4700P
0.1u
10K
22K
13
(8/
9
)
MITSUBISHI SOUND PROCESSORS ICs
M62456FP
DIGTAL SOUND CONTROLLER
APPLICATION EXAMPLE
IN1< R > IN2< L >
33K
0.068u
0.047u
43K
0.068u 15K
1
+
24 23
22K 22K 15K 10K
0.047u 15K
2 3
22K 100P
0.082u
+
22
100P 22K
4
VCC=+7V 100u 47K 47K
21
VEE=-7V
+
5 6
VCC
VEE
20
100u
27K
19 18
+ 33u
27K
Diode Clip
7
820K 27K
3.3K
820K 4.7K 47u LEVEL1 LEVEL2 4.7K 47u
8
3.9K +
17 16
1.8K 270K
0.068u 0.033u
9 10 11 12
22K 22K
15K
+
15 14
4700P
8.2K
0.15u
82K 82K 0.1u 10K
15K
13
Power amplifire
Power amplifire
middle & high lange < R > OUT1
+
-
+
+
-
bass lange (BTL)
< L > middle & high lange OUT2
(9/ 9 )


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