MITSUBISHI SOUND PROCESSOR ICs
M62431FP
7-ELEMENT GRAPHIC EQUALIZER WITH MICROCOMPUTER INTERFACE
DESCRIPTION
The M62431FP is 2-channel 7-band graphic equalizer IC developed for home audio, car audio sets, etc. This
IC can be control by serial data from microcomputer.
FEATURES
Be able to operate with serial data from microcomputer
Can be gaining control of 7-band (±10dB and 2dB steps)
Power supply is single power supply or ± power supplies
Low nose VNO (flat)=5µVrms (typ)<JIS-A>
Low distortion THD=0.005% (typ)<HPF400Hz, LPF30kHz>
RECOMMENDED OPERATING CONDITION
Supply voltage range............ AVDD, AVss=±4.5 to ±7.0V
(2 power supplies)
Outline 56P6N-A
Or, AVDD=9 to 14V
0.8mm pitch QFP
(14.0mmX10.0mmX2.8mm)
(Single power supply AVss=0V)
DVDD=4.5 to 5.5V
(However, DVDD≤AVDD)
SYSTEM CONFIGURATION
7-ELEMENT GRAPHIC EQUALIZER
TONE CONTROL
Rch IN
Rch OUT
Lch IN
Lch OUT
µ-COM INTERFACE
CLK
DATA
LATCH
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MITSUBISHI SOUND PROCESSOR ICs
M62431FP
7-ELEMENT GRAPHIC EQUALIZER WITH MICROCOMPUTER INTERFACE
PIN CONFIGURATION (TOP VIEW)
F2I2 45
28 F7R2
F1R2 46
27 OUT2
F1O2 47
26 DGND
F1I2 48
25 LATCH
IN2 49
24 DATA
REF IN 50
23 CLOCK
M62431FP
AVDD1 51
22 AVDD2
21 AVSS
IN1 52
F1I1 53
20 S OUT
F1O1 54
19 DVDD
F1R1 55
18 OUT1
F2I1 56
17 F7R1
Outline 56P6N-A
NC:NO CONNECTION
IC INTERNAL BLOCK DIAGRAM
F2O2 F2R2
44
F2I2
45
F1R2
46
43
F3I2 F3O2 F3R2
42
41
40
GE2
F4I2 F4O2 F4R2 F5I2 F5O2 F5R2
39
38
37
GE3
36
35
GE4
34
F6I2 F6O2 F6R2
33
GE5
32
31
GE6
F7I2 F7O2
30
29
GE7
28
F7R2
27
OUT2
26
DGND
25
LATCH
24
DATA
23
CLOCK
22
AVDD2
21
AVSS
20
S OUT
19
DVDD
18
OUT1
17
F7R1
2k
F1O2
47
F1I2
48
68k
GE1
70k
IN2
49
12k
AVSS
40k
REF IN
12k
CH2
50
MICROCOMPUTER
INTERFACE
40k
AVDD1
51
CH1
AVDD
12k
70k
IN1
52
F1I1
53
68k
F1O1
54
F1R1
55
F2I1
56
12k
GE1
2k
GE2
1
2
F2O1 F2R1
3
4
GE3
5
F3I1 F3O1 F3R1
6
GE4
7
8
F4I1 F4O1 F4R1
GE5
9
10
11
GE6
12
13
GE7
14
F5I1 F5O1 F5R1 F6I1 F6O1 F6R1
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15
16
F7I1 F7O1
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MITSUBISHI SOUND PROCESSOR ICs
M62431FP
7-ELEMENT GRAPHIC EQUALIZER WITH MICROCOMPUTER INTERFACE
ABSOLUTE MAXIMUM RATINGS
Symbol
DVDD
Pd
Parameter
Analog supply voltage
Digital supply voltage
Power dissipation
K
Thermal derating
Topr
Tstg
Operating temperature
Storage temperature
AVDD, AVSS
Conditions
AVDD
AVSS
DVDD
VIH
VIL
7.0
1000
Unit
V
V
mW
10.0
mW/˚C
-20 to +60
-40 to +125
˚C
˚C
Ta≤25˚C
Ta>25˚C
Equipped with standard board (Note 2)
RECOMMENDED OPERATING CONDITION
Symbol
Ratings
14.6 (single) ±7.3 (± supply)
(Ta=25 ˚C, unless otherwise noted)
Parameter
Test conditions
Analog positive supply voltage
Analog negative supply voltage
Digital supply voltage
Logic "H" level input voltage
Logic "L" level input voltage
Min.
4.5
-4.5
4.5
Note 1
Note 1
DVDD≤AVDD
DVDD=5V
DVDD=5V
DVDDX0.8
0
Limits
Typ.
6.0
-6.0
5.0
–
–
Max.
7.0
-7.0
5.5
DVDD
DVDDX0.2
Unit
V
V
V
V
V
Note 1.When the IC use ± power supplies, the first, provide to AVDD the supply voltage, and then provide to AVSS.
The DVDD voltage must not supply before the analog supply voltage provide.
2.Standard circuit board.
•board size
: 70mm X 70mm
•copper pattern
•board thickness : 1.6mm
copper thickness: 18µm
•board material : Glass epoxy
copper size
: 0.25mm (width) X 25mm (length/lead)
RELATIONSHIPS BETWEEN DATA AND CLOCK
LATCH SIGNAL
H
DATA
D0
D1
D8
D9
D0"
L
H
CLOCK
L
H
Reads data signal at the rising edge of the clock.
Can be latch the data signal at the rising edge of the LATCH signal.
LATCH
Clock signal is invalid
when LATCH=H.
L
H
SOUT
D0^
D1^
D9^
D0
D1
L
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MITSUBISHI SOUND PROCESSOR ICs
M62431FP
7-ELEMENT GRAPHIC EQUALIZER WITH MICROCOMPUTER INTERFACE
TIMINGS OF CLOCKS AND DATA
tcr
75%
CLOCK
25%
tr
tf
tWHC
tWLC
75%
DATA
25%
tr
tSD
tHD
tf
tr
tSL
tWHC
tf
75%
LATCH
25%
DEFINITION OF TIMING IN DIGITAL PART
Symbol
tcr
tWHC
tWLC
tr
tf
tSD
tHD
tSL
tWHL
Parameter
CLOCK cycle time
CLOCK pulse width ("H" level)
CLOCK pulse width ("L" level)
Rising time of CLOCK, DATA, LATCH
Falling time of CLOCK, DATA, LATCH
DATA setup time
DATA hold time
LATCH setup time
LATCH pulse width
Min.
Limits
Typ.
Max.
4.0
1.6
1.6
–
–
0.8
0.8
1.0
1.6
–
–
–
–
–
–
–
–
–
–
–
–
0.4
0.4
–
–
–
–
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ELECTRIC
Unit
µsec
µsec
µsec
µsec
µsec
µsec
µsec
µsec
µsec
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MITSUBISHI SOUND PROCESSOR ICs
M62431FP
7-ELEMENT GRAPHIC EQUALIZER WITH MICROCOMPUTER INTERFACE
DATA INPUT FORMAT
The 7-band tone control can be set by changing the Band setting
of D8/D9.
(Initialize all data when power supply is turned on.)
D0
D1
Input direction
D2
D3
D4
Tone control setting 1
D5
D6
D7
Tone control setting 2
D0/D4
0
0
0
0
0
0
1
1
1
1
1
1
D1/D5
0
0
0
0
1
1
0
0
0
0
1
1
D2/D6
0
0
1
1
0
0
0
0
1
1
0
0
D9
Band setting
(1) Tone control setting table (Gains)
(Settings except for the settings below are inhibited.)
Tone setting
0dB
+2dB
+4dB
+6dB
+8dB
+10dB
0dB
-2dB
-4dB
-6dB
-8dB
-10dB
D8
D3/D7
0
1
0
1
0
1
0
1
0
1
0
1
(2) Band setting table
Setting 1
GE 1
GE 3
GE 5
GE 7
Setting 2
GE 2
GE 4
GE 6
–
D8
0
0
1
1
D9
0
1
0
1
ELECTRICAL CHARACTERISTICS
(Ta=25˚C, AVDD=6.0V, AVSS=-6.0V, DVDD=5.0V, f=1kHz, unless otherwise noted. Tone control bass boost is set to 0dB.)
Symbol
Parameter
AIDD
AISS
DIDD
Rin
VIM
Vodc
Gv
Analog positive power circuit current
Analog negative power circuit current
Digital power circuit current
Input resistance
Maximum input voltage
Output pin voltage
Transmission gain
Vono
Output noise voltage
THD
CT
Gboost
Gcut
Distortion
Channel crosstalk
BALton
Channel balance
Tone control voltage gain
Test conditions
No signal provided
No signal provided
No signal provided
RL=10kΩ, THD=1%
JIS-A filter
No signal provided Rg=10kΩ
FLAT
Vo=0.5Vrms, RL=10kΩ
10dB
f=1kHz, Vo=1Vrms
-10dB
Each boost is +10, -10dB
with f=1kHz, Vo=1Vrms
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ELECTRIC
Min.
15
-45
0.05
35
3.0
-0.3
-2.0
Limits
Typ.
30
-30
0.3
70
3.5
0
0
Max.
45
-15
1.2
120
–
Unit
0.3
2.0
mA
mA
mA
kΩ
Vrms
V
dB
5.0
10.0
µVrms
–
–
8.5
-11.5
0.005
-100
10
10
0.05
-70
11.5
-8.5
%
dB
dB
dB
-1.5
0
+1.5
dB
–
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MITSUBISHI SOUND PROCESSOR ICs
M62431FP
7-ELEMENT GRAPHIC EQUALIZER WITH MICROCOMPUTER INTERFACE
TYPICAL CHARACTERISTICS
THERMAL DERATING (MAXIMUM RATING)
1.5
(Note 1) Standard board
Size of printed circuit board
70mm X 70mm
Thickness of printed circuit board
1.6mm
Material of printed circuit board
Glass epoxy
Single-side Cu pattern
Thickness of Cu
18µm
Size of Cu pattern
0.25mm (Width) X 25mm (length)/lead
1.0
650mW
0.5
0
25
0
50 60 75
100
125
150
AMBIENT TEMPERATURE Ta (˚C)
FUNCTION DESCRIPTION
(1)Tone control circuit block
FR
R3
C1
C1
FO
L
R1
C2
FI
R1
R2
Fig.1 Resonance circuit
Center frequency
fo=1/2π
Q=
C1•C2•R1•R2 [Hz]
C2•(R1•R2) / C1•(R1+R3)2
Fig.2 Equivalent circuit using L
Figure 1 is equivalent to Figure 2. Part constants are converted by
the below expression.
L=C2•R1•R2
(Example) In mid-band (f=1kHz)
R1=2kΩ, R2=68kΩ
C1=3900pF, C2=0.047µF
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MITSUBISHI SOUND PROCESSOR ICs
M62431FP
7-ELEMENT GRAPHIC EQUALIZER WITH MICROCOMPUTER INTERFACE
APPLICATION EXAMPLE
(Single power supply used)
OUTPUT 2
MCU
OUTPUT 1
DVDD=+5V
AVDD2=+12V
10µF
28
10µF
S OUT
27
26
25
24
23
22
21
20
19
18
17
2700pF
2700pF
29
16
(fo=16kHz)
270pF
GE7
30
(fo=16kHz)
MICROCOMPUTER
INTERFACE
270pF
GE7
15
31
14
6800pF
6800pF
32
GE6
(fo=6.3kHz)
13
GE6
12k
(fo=6.3kHz)
12k
680pF
680pF
33
12
12k
12k
34
11
GE5
GE5
0.022µF
0.022µF
35
10
(fo=2.2kHz)
(fo=2.2kHz)
1800pF
1800pF
36
9
GE4
GE4
37
8
38
7
0.047µF
0.047µF
(fo=1kHz)
(fo=1kHz)
GE3
3900pF
GE3
3900pF
39
6
40
5
0.12µF
GE2
41
0.12µF
GE2
4
(fo=400Hz)
(fo=400Hz)
0.01µF
0.01µF
42
CH2
43
3
CH1
GE1
2k
0.47µF
68k
AVSS
44
(fo=134Hz)
46
47
48
49
INPUT 2
0.47µF
1
(fo=134Hz)
70k
50
2.2µF
0.47µF 0.12µF
(fo=57Hz)
2k
40k
70k
0.022µF
68k
AVDD
40k
45
2
GE1
51
0.022µF
52
4.7µF
53
54
55
56
2.2µF
AVDD1=+12V INPUT 1
0.12µF 0.47µF
(fo=57Hz)
Units Resistance :Ω
Capacitance:F
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