MITSUBISHI SOUND PROCESSORS ICs
M62456FP
DIGTAL SOUND CONTROLLER
DESCRIPTION
The M62456FP Integrated Circuit is develo...
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 fi...