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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)=5Vrms (typ) Low distortion THD=0.005% (typ)
RECOMMENDED OPERATING CONDITION
Supply voltage range............ AVDD, AVss=4.5 to 7.0V (2 power supplies) Or, AVDD=9 to 14V (Single power supply AVss=0V) DVDD=4.5 to 5.5V (However, DVDDAVDD)
Outline 56P6N-A
0.8mm pitch QFP (14.0mmX10.0mmX2.8mm)
SYSTEM CONFIGURATION
7-ELEMENT GRAPHIC EQUALIZER
TONE CONTROL Rch IN Rch OUT
Lch IN -COM INTERFACE
Lch OUT
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 F1R2 46 F1O2 47 F1I2 48 IN2 49 REF IN 50
28 F7R2 27 OUT2 26 DGND 25 LATCH 24 DATA 23 CLOCK
M62431FP
AVDD1 51 IN1 52 F1I1 53 F1O1 54 F1R1 55 F2I1 56
22 AVDD2 21 AVSS 20 S OUT 19 DVDD 18 OUT1 17 F7R1
Outline 56P6N-A
NC:NO CONNECTION
IC INTERNAL BLOCK DIAGRAM
F2O2 F2R2
44 43
F3I2 F3O2 F3R2
42 41 40
F4I2 F4O2 F4R2 F5I2 F5O2 F5R2
39 38 37 36 35 34
F6I2 F6O2 F6R2
33 32 31
F7I2 F7O2
30 29
F2I2 F1R2 F1O2 F1I2 IN2 REF IN AVDD1 IN1 F1I1 F1O1 F1R1 F2I1
45
28
F7R2 OUT2 DGND LATCH DATA CLOCK
46 2k 47 68k 48 70k 49 AVSS 40k 50 40k 51 AVDD 70k 52 CH1 CH2 GE1
GE2
GE3
GE4
GE5
GE6
GE7
27
26
25
12k 12k
24
23 MICROCOMPUTER INTERFACE 12k 12k 21 22
AVDD2 AVSS S OUT DVDD OUT1 F7R1
53 68k 54
GE1
20
19
55
2k
18
GE2
56
GE3
GE4
GE5
GE6
GE7
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
F2O1 F2R1
F3I1 F3O1 F3R1
F4I1 F4O1 F4R1
F5I1 F5O1 F5R1 F6I1 F6O1 F6R1
F7I1 F7O1
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MITSUBISHI SOUND PROCESSOR ICs
M62431FP
7-ELEMENT GRAPHIC EQUALIZER WITH MICROCOMPUTER INTERFACE
ABSOLUTE MAXIMUM RATINGS
Symbol
AVDD, AVSS
DVDD Pd K Topr Tstg
Parameter Analog supply voltage Digital supply voltage Power dissipation Thermal derating Operating temperature Storage temperature
Conditions
Ratings
14.6 (single) 7.3 ( supply)
Ta25C Ta>25C Equipped with standard board (Note 2)
7.0 1000 10.0 -20 to +60 -40 to +125
Unit V V mW mW/C C C
RECOMMENDED OPERATING CONDITION
Symbol AVDD AVSS DVDD VIH VIL Parameter Analog positive supply voltage Analog negative supply voltage Digital supply voltage Logic "H" level input voltage Logic "L" level input voltage
(Ta=25 C, unless otherwise noted) Test conditions Note 1 Note 1 DVDDAVDD DVDD=5V DVDD=5V Limits Typ. 6.0 -6.0 5.0 - - Unit V V V V V
Min. 4.5 -4.5 4.5
DVDDX0.8
Max. 7.0 -7.0 5.5 DVDD
DVDDX0.2
0
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: 18m *board material : Glass epoxy copper size : 0.25mm (width) X 25mm (length/lead)
RELATIONSHIPS BETWEEN DATA AND CLOCK
LATCH SIGNAL H DATA L D0 D1 D8 D9 D0"
H CLOCK L
H LATCH L Reads data signal at the rising edge of the clock. Can be latch the data signal at the rising edge of the LATCH signal. Clock signal is invalid when LATCH=H.
H SOUT L D0^ D1^ D9^ D0 D1
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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 tWHC tf tWLC
75% DATA 25% tr tSD tHD tf tr tWHC tf
tSL LATCH
75% 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. 4.0 1.6 1.6 - - 0.8 0.8 1.0 1.6 Limits Typ. - - - - - - - - - Max. - - - 0.4 0.4 - - - - Unit sec sec sec sec sec sec sec sec sec
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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.) Input direction D2 D3
D0
D1
D4
D5
D6
D7
D8
D9
Tone control setting 1
Tone control setting 2
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 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 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=25C, AVDD=6.0V, AVSS=-6.0V, DVDD=5.0V, f=1kHz, unless otherwise noted. Tone control bass boost is set to 0dB.) Symbol AIDD AISS DIDD Rin VIM Vodc Gv Vono THD CT Gboost Gcut BALton Parameter Analog positive power circuit current Analog negative power circuit current Digital power circuit current Input resistance Maximum input voltage Output pin voltage Transmission gain Output noise voltage Distortion Channel crosstalk Tone control voltage gain Channel balance Test conditions No signal provided No signal provided No signal provided RL=10k, THD=1% Min. 15 -45 0.05 35 3.0 -0.3 -2.0 - - - 8.5 -11.5 -1.5 Limits Typ. 30 -30 0.3 70 3.5 0 0 5.0 0.005 -100 10 10 0 Max. 45 -15 1.2 120 - 0.3 2.0 10.0 0.05 -70 11.5 -8.5 +1.5 Unit mA mA mA k Vrms V dB Vrms % dB dB dB dB
JIS-A filter No signal provided Rg=10k FLAT Vo=0.5Vrms, RL=10k 10dB f=1kHz, Vo=1Vrms -10dB Each boost is +10, -10dB with f=1kHz, Vo=1Vrms
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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 18m Size of Cu pattern 0.25mm (Width) X 25mm (length)/lead
1.0
650mW 0.5
0 0 25
50 60 75
100
125
150
AMBIENT TEMPERATURE Ta (C)
FUNCTION DESCRIPTION (1)Tone control circuit block
FR R3 C1 FO R1 C2 FI R2 L C1
R1
Fig.1 Resonance circuit
Fig.2 Equivalent circuit using L
Center frequency fo=1/2 Q= C1*C2*R1*R2 [Hz]
Figure 1 is equivalent to Figure 2. Part constants are converted by the below expression. L=C2*R1*R2
C2*(R1*R2) / C1*(R1+R3)2
(Example) In mid-band (f=1kHz) R1=2k, R2=68k C1=3900pF, C2=0.047F
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MITSUBISHI SOUND PROCESSOR ICs
M62431FP
7-ELEMENT GRAPHIC EQUALIZER WITH MICROCOMPUTER INTERFACE
APPLICATION EXAMPLE (Single power supply used)
OUTPUT 2 10F 28 2700pF 29 (fo=16kHz) 270pF 30 GE7 MICROCOMPUTER INTERFACE GE7 16 (fo=16kHz) 270pF 15 27 26 25 24 23 22 21 OUTPUT 1 DVDD=+5V S OUT 20 19 10F 18 17 2700pF
MCU
AVDD2=+12V
31 6800pF 32 (fo=6.3kHz) 680pF 33 12k 34 GE5 0.022F 35 (fo=2.2kHz) 1800pF 36 GE4 37 0.047F 38 (fo=1kHz) 3900pF 39 GE3 GE3 GE4 GE5 12k GE6 12k 12k GE6
14 6800pF 13 (fo=6.3kHz) 680pF 12
11 0.022F 10 (fo=2.2kHz) 1800pF 9
8 0.047F 7 (fo=1kHz) 3900pF 6
40 0.12F 41 (fo=400Hz) 0.01F 42 CH2 CH1 GE2 GE2
5 0.12F 4 (fo=400Hz) 0.01F 3
43 0.47F 44 (fo=134Hz) 0.022F 45 46 47 2k
GE1 68k AVSS 40k 70k 48 49 2.2F 0.47F 0.12F (fo=57Hz) INPUT 2 50 4.7F 51 40k 70k 52 2.2F AVDD
GE1 68k 2k
2 0.47F 1 (fo=134Hz) 0.022F
53
54
55
56
AVDD1=+12V INPUT 1
0.12F 0.47F (fo=57Hz)
Units Resistance : Capacitance:F
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