D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
SYSTEM BLOCK DIAGRAM
APPLICATION
FEATURES
RECOMMENDED OPERATING CONDITIONS
VDD=4.5V to 5.5V VDD=5V
1
IND1
Interface
Zero-Cross Detector Circuit
IN1
INC1
INB1
INA1
IN2
IN2
INC2
INB2
INA2
Front
Rear
Fader
Front
Rear
Fader
DATA
CLOCK
Non Fader
Volume1
Volume2
Master Volume is composed of Volume1 and
Volume2
-
OUT1
OUT2
Input Gain Control
Loudness
Non Fader
Differential
Amp.
Differential
Amp.
-
Master Volume is composed of Volume1 and
Volume2
Serial Data Control of 2 lines formula.
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
This IC can be used Analog Signal processing of Power Amp.front stage
This IC can be used Car Audio System,Home Audio System and TV.
This IC is unnecessary for outside putting CR by using SCF for Loudness and Tone Control.
Bass : +16dB to -12dB/2dBstep. f0,Q=variable. f0=50Hz,80Hz,120Hz Q=1,1.25,1.5,2
Mid : +12dB to -12dB/2dBstep. f0,Q=variable. f0=700Hz,1KHz,2KHz,10KHz Q=1.5,2
Treble : +12dB to -12dB/2dBstep. f0=variable. f0=8KHz,12KHz
Loudness : f0=variable. f0=60Hz,80Hz,100Hz
Build-in Non Fader Volume
+12dB to -12dB /2dB step, - dB
Build-in Zero-Crossing Detector Circuit for Changing Noise Measure.
Build-in Differential Input and Differential Output
Build-in Input Selector (4 input + Differential Input)
Build-in Input Gain Control
0dB to +18.75dB/1.25dB step
Build-in Master Volume and Fader Volume (Front,Rear)
Volume : 0dB to -83dB , - dB/1dB step
Fader : 0dB ,-1dB,-2dB,-3dB,-4dB,-6dB,-8dB,-12dB,-16dB,-20dB,-30dB,-45dB,-60dB,- dB/16 step
Outline
36P2R
Supply voltage range...VCC=7V to 9V Rated supply voltage... VCC=8V
DEFN
DEFP
DEFN
IND2
DEFN
+
Input Gain Control
+
Volume1
Zero-Cross Detector Circuit
Loudness
Bass/Mid/
Treble
Bass/Mid/
Treble
Volume2
Fader
Non
u-com
Non
Fader
DEFP
IN1
DEFN
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
2
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
12dB
+
12dB
+
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
Symbol
REF
DEFN IN1
INA1
Function
1234VOL IN1
5678TONE OUT1
FADER IN1
9101112131415
16
Negative Input pin of Differential Amp.
Input pin of Channel 1 for Input Selector SW
Input pin of Volume2
Input pin of Volume1
INC1
IND1
Output pin of Non Fader Volume
18
DEFN OUT1
N.C.
3
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
PIN DESCRIPTION
Pin No.
Signal Ground of IC. Grounding about 10uF
DEFP IN1
INB1
SEL OUT1
REAR OUT1
Positive Input pin of Differential Amp.
Output pin (-) of Differential Amp.
Output pin of Input Selector
Output pin of Tone
Output pin of Fader Volume (rear)
FRONT OUT1
Non Fader OUT1
GND
17
DATA
Output pin of Fader Volume (front)
Ground Pin
Input pin of Control Data.
It synchronized at CLOCK and inputted Data
N.C. Pin
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
System
CLOCK
FRONT OUT2
REAR OUT2
Function
2122232425262728VOL IN2
SEL OUT2
IND2
INC2
29303132333435
36
Clock Input pin for Serial Data Transmission
Output pin of Fader Volume (front)
Input pin of Volume 2
Input pin of Volume1
Output pin of Input Selector
FADER IN2
TONE OUT2
DEFN IN1
Input pin of channel 2 for Input Selector SW
Non Fader OUT2
Output pin of Non Fader Volume
19
DEFN OUT1
N.C.
4
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
Pin No.
N.C. Pin
20
VDD
INB2
Digital Power Supply pin
Output pin of Fader Volume (rear)
Output pin of Tone
Output pin (-) of Differential Amp.
INA2
DEFP IN1
VCC
Negative Input pin of Differential Amp.
Positive Input pin of Differential Amp.
Analog Power Supply pin
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
5
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
6
Symbol
Parameter
Test conditions
Min
typ
Max
mA
Circuit Current
Icc
G(Bass)B
G(Bass)C
G(Tre)B
G(Tre)C
A
THD
CS
Attenuation Quantity
Maximum Input Voltage
Boost Quantity (Bass)
Maximum input voltage
Attenuation Quantity
Channels
Boost Quantity (Treble)
Cut Quantity (Bass)
Cut Quantity (Treble)
f=10KHz
f=100Hz
f=10KHz
f=1KHz,Vo=0.5Vrms
-9001.816-1212-12
-90
-90
Vrms
%dBdBdBdBdBdB
Vrms
dB
output noise voltage
uVrms
12
ATT(VOL)= - dB
BW:400Hz to 30KHz
G(MID)C
Boost Quantity (Mid)
Cut Quantity (Mid)
f=1KHz
f=1KHz
dB
GV
Loudness voltage gain
Vno 2
Vno 1
VOM
Input Selector Crosstalk
dB
Gv(GAIN)
0.0113+2-2-80+2-21913-9-15-9-15-9-15159159
-80
1.8
0.05
-75
-601610
21.75
15.75
f=1KHz,DIN-AUDIO
5
CMRR
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
ELECTRICAL CHARACTERISTICS
(Ta=25 C,VCC=8V,VDD=5V,Input Gain/Volume/Tone/fader=0dB,Loudness=OFF,unless otherwise noted.)
Limits
Unit
ATT(VOL)
ATT(VOL)
VIM
G(MID)B
(FED)
TT
Pass Gain
Volume Maximum
Crosstalk between
Fader Maximum
No signal setting
Vi=1Vrms , f=1KHz
ATT(VOL)= 0dB
f=1KHz , DIN-AUDIO
THD=1%
f=100Hz
Vi=1Vrms , f=1KHz,DIN-AUDIO
ATT(FED)= - dB
f=1KHz , DIN-AUDIO
12
-12
40
dB0
dB
dB
Vno 3
CT
Gv(LOUD)
Total harmonic distortion
Channel Separation
Input gain control
Common Mode
Rejection Ratio
THD=1%
Rg=0,DIN-AUDIO
Bypass setting
Rg=0,DIN-AUDIO
ATT(VOL)= - dB
Rg=0,DIN-AUDIO
f=1KHz,DIN-AUDIO
Loudness ON , f=100Hz
VOL1= -30dB , VOL2=0dB
LOUD_VOL= -20dB
Gv(GAIN)= +18.75dB 18.75
2,3pin/34,35pin
Common mode signal input setting
MITSUBISHI
ELECTRIC
3.5
-75
50
dB
dB
dB
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
CLOCK
Data signals are read at rising edges of Clock.
Latch signals are read at rising edges of Clock.
Latch signal "H"
D1D2D0D3D32
D33
D34
7
V
IL
Symbol
Parameter
Test Conditions
Min
V
IHIILIIH
"H" Level Input Voltage
"L"Level Input Electric Current
"H" Level Input Electric Current
CLOCK Pin
I
I
4.0
1.0
-101010uA
5.0
VDD=5V setting
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
CONNECTION of DATA AND CLOCK
DATA
DIGITAL BLOCK DIRECT CURRENT CHARACTERISTIC
"L" Level Input Voltage
DATA,CLOCK Pin
V=0V
V=5V
DATA,
0
Limits
typ
Max
Unit
V
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
DATA
75%
rtftcrtWHCtWLCtSDtHD
8
Symbol
Parameter
Min
crtWHCtWLCtrtftSDtHD
CLOCK Pulse Width ("H" level)
CLOCK Pulse Width ("L" level)
CLOCK Rise Time
CLOCK Hall Time
DATA Setup Time
DATA Hold Time
4
1.6
1.6
0.8
0.8
0.4
0.4
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
CLOCK AND DATA TIMING
CLOCK
25%
t
DIGITAL BLOCK ALTERNATING CURRENT CHARACTERISTIC
t
CLOCK Cycle Time
MITSUBISHI
ELECTRIC
Limits
typ
Max
Unit
uS
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
9
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
D4D50dB
-2dB
-4dB110011
CH1
CH2
D10
D11
D6
0dB
-1dB
-2dB
-3dB10010011
CH1
CH2
D12
D13
0
D8
0dB
-8dB
-16dB
-24dB
-32dB
-48dB
-56dB
D6000100000101001100110011100000010111
-40dB
-2dB
-4dB
-6dB
-10dB
-12dB
-14dB
01100111101100100011110
CH1
CH2D1D2D0D3
D9
0dB
-4dB
-8dB
-9dB
-10dB
-12dB
-16dB
D7000100000101001100110011100000010111
-20dB
-11dB
-1dB
-2dB
-3dB
-5dB
-6dB
-7dB101100111101100100011110
CH1
CH2D1D2D0D3
-24dB
-28dB
11100000000000000000000
1
D4
TIMER SETTING CODE
D25
D26
5mS
10mS
15mS
20mS
0010011
10
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
VOLUME 1 CODE
ATTVA1
1
VOLUME 2 CODE
ATT
VB1
D8
D7
D10
D9
D11
ATTVB2
ATTVA2
ATTVA2 fixed to 0dB when
0dB -12dB setting.
D5
- dB
TIMER
1
-6dB
ATTVB2 fixed to 0dB when
0dB -16dB setting.
1
0
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
10dB
6dB
4dB
2dB
0dB
-2dB
-4dB
-6dB
-8dB
-10dB
-12dB
8dB
D17
D18
D16
00100
0/100101011001001110000010001010110010011111111
1
D11
D9
D3D1D0
12dB
10dB
6dB
4dB
2dB
0dB
-2dB
-4dB
-6dB
-8dB
-10dB
-12dB
8dB0001000001010110010011100000100010101100100111111111
110
001
TONE f0,Q CONTROL CODE
BASS f0 CONTROL
D5
f0=80Hz
f0=120Hz
10110
TREBLE f0 CONTROL
f0=12KHz
0
BASS Q CONTROL
D7
Q=1.5
Q=1.25
Q=1
1011000
MID Q CONTROL
Q=2
0
MID f0 CONTROL
f0=1KHz
0
1
0
0
11
D31
f0=80Hz
f0=100Hz
10110
LOUDNESS fO CONTROL
D24
-6dB
-8dB
-12dB
-14dB
-16dB
-18dB
-20dB
-22dB
-24dB
-26dB
-28dB
-30dB
-10dB
1100001
LOUDNESS
D21
-4dB
-2dB10101010110010001111111111110111011001101100000000
00000
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
TONE CODE
MID
TREBLE
12dB
BASS
16dB
14dB
D8
D15
0
0
1
D10
D2
LOUDNESS VOLUME CODE
D22
1
- dB
Please refer to 21,22 page for Loudness gain
*
setting.
0
D23
f0=50Hz
Q=2
D4
1
D6
1
D12
f0=700Hz
f0=2KHz 1
f0=10KHz
D14
Q=1.5
1
LOUDNESS fO CONTROL
D30
f0=60Hz
D13
1
0
1
f0=8KHz
1
D19
1
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
-14dB
-16dB
-20dB
-30dB
-45dB
-60dB
011101100110110000000
0
00000
FADER CODE
Differential Input
000
INPUT GAIN
CONTROL
12
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
SELECTOR CODE
SELECTOR
INA
INB
INC
IND
D14
0 0
1
0
1
0 0
D15
1
1
0
D16
1
0
0
0
0
INPUT GAIN CONTROL CODE
D20
1
1
1
1
0
0
0
1
1
0
0
0
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0dB
1.25dB
2.50dB
3.75dB
5.00dB
6.25dB
7.50dB
8.75dB
10.00dB
11.25dB
12.50dB
13.75dB
15.00dB
16.25dB
17.50dB
18.75dB
D17
D18
1
0
1
0
1
0
1
0
1 1 1
0
1
0
1
0
1
0
1 1
1
0
0
1
1
0
0 0
1 1
0
0
1
1
0
D19
NON FADER CODE
ATT
+12dB
+10dB
+8dB
+6dB
+4dB
+2dB
0dB
-2dB
-4dB
-6dB
-8dB
-10dB
-12dB
- dB
0dB
-1dB
-2dB
-3dB
-4dB
-6dB
-8dB
-10dB
-12dB
D26
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1 1 1
D27
0
0
1
1
0
0
1
1
0
0 1
1
1
0
0
D22FADER D21
1 1
1
0
0
1
1
0
0 0
D28
1
1
0
0
0
0
1
1
1
0
0
0
0
D23
1
1
1
0
0
0
D29
1
1
1
1
1
1
0
0
0
0
0
0
0
0
D24
1
1
1
1
1
1
1
1
0
MITSUBISHI
ELECTRIC
- dB
0
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
13
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
LOUDNESS,TONE CONTROL FREQUENCY CHARACTERISTIC
fig.1) Loudness Frequency Characteristic
fig.2) Loudness Frequency Characteristic(VOL=-30dB,Loudness=-20dB,fO=Variable)
fig.3) Bass Frequency Characteristic(fO=50Hz,Q=2,Gv=Variable)
fig.4) Bass Frequency Characteristic(Gv=+16dB,fO=Variable,Q=2)
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
14
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
fig.5) Bass Frequency Characteristic (Gv=+16dB,Q=Variable, fO=50Hz)
fig.6) Mid Frequency Characteristic (fO=1kHz,Q=2,Gv=Variable)
fig.7) Mid Frequency Characteristic (Gv=+12dB,Q=2,fO=Variable)
fig.8) Mid Frequency Characteristic (Gv=+12dB,fO=1kHz,Q=Variable)
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
15
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
fig.9) Treble Frequency Characteristic (Gv=Variable)
fig.10) Treble Frequency Characteristic (Gv=+12dB,fO=Variable)
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
16
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
ZERO-CROSSING DETECTION CIRCUIT
1. Meaning of Zero-Crossing Detection Circuit
In the conventional Serial Data Control Type Volume, Analog SW inside switches over
simultaneously with Latch Condition Detector. And the operation completes.
CLK
D32 D33 D34
DATA
Latch Conditions
Audio Signal
Signal GND(1/2Vcc)
In this case the changing noise occurs at the time of Latch Condition Detector, the
Analog SW switches over (Zero-cross Detector Strobe occurs) in the moment that the
Analog Signal cross Signal Ground (1/2VCC).
CLK
D32
DATA
D33 D34
Noise Factor when
Signal is present
Latch Conditions
Zero-cross Detector Strobe
(Form signal from inside IC)
Analog SW changing
Signal GND (1/2Vcc)
Other,In the case of Audio Signal isn't inputted (No signal),even if only Zero-cross
Detector Circuit detects Latch Condition, Analog SW doesn't switch over for the
Audio Signal never cuts Signal Ground (1/2VCC).
The Time Function switches the Analog SW after some time T.
The Timer Time can setting with the Serial Data of 5mS,10mS,15mS,20mS.
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
SW Changing
SW Changing
17
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
2. Connection of Zero-Crossing Detector and Timer Setting
"OR" of [Zero-cross Detector Strobe] or [Compulsion SW of Timer Circuit] moves
Internal Analog SW . When for example, suppose that it set to T=10msec.
T=10 msec
CLK
D32 D33 D34
DATA
Latch Conditions
M61508FP
Pattern 1
Zero-cross Detector Strobe
(Form signal from inside IC)
Audio Signal
Pattern 2
Zero-cross Detector Strobe
(Form signal from inside IC)
Audio Signal
In case of Pattern1, the Zero-cross Detector Strobe occurs with the Zero-cross Detector
Function, and SW is switched. But in case of Pattern2, the Timer Function switches the
Analog SW after T=10msec, for the Audio Input Signal didn't cut the Signal Ground after
T=10msec which were set with the timer.
Timer Setting Time setting for Frequency band of Input Audio Signal.
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
18
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
3. Timer Setting System
T=10 msec
CLK
D34
DATA
Audio Signal
Latch
Conditions
f=
1
2 T
1
=
2 10msec
=50Hz
In case of Timer Setting Time/T =10 msec setting
CLK
D34
DATA
Pattern 1
Audio Signal
Audio Signal
50Hz <
50Hz >
Zero-cross Detector
100%
100%
T=10 msec
Latch
Conditions
0%
Upper fig.
Pattern 1
Pattern 2
f=30Hz
Pattern 2
Audio Signal
The Timer Setting Time T makes T=20msec (Zero-cross detect of 25Hz is 100%)
maximum and it is setting by it.
f=30Hz
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
Serial Data Transmission Interval IT
19
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
4. Connection of Data Transmission and Timer Setting
M61508FP has the function to make the Serial Data invalid until it generations the
Zero-cross Detector Strobe in IC, after the Latch Condition detected.
Timer Setting T
CLK
D0
DATA
Zero-cross Detector Strobe
(Form signal from inside IC)
Audio Signal
In case of upper figurative.The order of DATA "B" is invalid.
*
to
"A"
D33
D34
Latch Conditions
D0
SW Changing for DATA "A"
to
"B"
D33
Latch
Conditions
D34
In to make the Serial Data Transmission Interval IT from MCU(microcomputer) to
M61508FP
Serial Data Transmission Interval=IT > Timer Setting= T
the reading error of the data doesn't occur.
Serial Data Transmission Interval IT =Interval of between Latch Condition
*
and Latch Condition
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
20
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
MITSUBISHI
ELECTRIC
D-61508-98-C
( /22)
MITSUBISHI SOUND PROCESSOR ICs
10
Gv
Volume 1= -30dB
21
M61508FP
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
2 LOUDNESS GAIN SETTING
Lower Figure is Structure of Loudness Circuit.
VIN
V1
VOLUME 1
LOUDNESS
FILTER
(Gv=0dB)
LOUDNESS VOLUME
Output Volutage (VOUT) of Setting Structure of Upper Figure
It is noted as Volume1Output Volutage = V1, Loudness Filter Output Voltage = V2,
VOUT and Gv (Boost quantity) is given at the lower formula
VOUT = V1 + V2 (Vrms)
Gv = 20 log
(V1 + V2)
VIN
- (Volume 1 attenuation quantity) (dB)
V2
R
R
VOUT
R
R
ex.) VIN = 1Vrms/60Hz,Volume1= - 30dB,
Output Volutage and Boost Quantity of 60Hz of Loudness Volume = -20dB setting
From : Volume1,Loudness Volume attenuation quantity
Become : V1 = 31.6mVrms
V2 = 100mVrms
If the subsitudes the equation for the upper formula,
the following equation is given :
VOUT = 31.6m + 100m
=131.6mVrms
Gv = 20 log
= 12.4dB is obtained.
In the item,the Loudness Gain Setting example is shown, when Volume1 fixation and
doing the Loudness Volume variably. Please refer to Plan.
(31.6m + 100m)
1
MITSUBISHI
ELECTRIC
- (-30dB)
Frequency (Hz)
D-61508-98-C
( /22)
THE ELECTRIC VOLUME of BUILD-IN NON FADER VOLUME with TONE CONTROL
LOUDNESS GAIN
LOUDNESS
VOLUME
-2dB
-4dB
-6dB
-8dB
-10dB
-12dB
-14dB
-16dB
-18dB
-20dB
-22dB
-24dB
-26dB
-30dB
- dB
10.9dB
9.5dB
8.2dB
7.1dB
6.0dB
5.1dB
4.2dB
3.5dB
2.9dB
2.4dB
1.9dB
1.6dB
1.3dB
1.0dB
0dB
-28dB
0.8dB
22
-2dB
-4dB
-6dB
-8dB
-10dB
-12dB
-14dB
-16dB
-18dB
-20dB
-22dB
-24dB
-26dB
-30dB
- dB
19.0dB
17.3dB
15.6dB
13.9dB
12.4dB
10.9dB
9.5dB
8.2dB
0dB
-28dB
7.1dB
6.0dB
5.1dB
4.2dB
3.5dB
2.9dB
2.4dB
LOUDNESS
VOLUME
LOUDNESS GAIN
-2dB
-4dB
-6dB
-8dB
-10dB
-12dB
-14dB
-16dB
-18dB
-20dB
-22dB
-24dB
-26dB
-30dB
- dB
28.3dB
26.4dB
24.5dB
22.7dB
20.8dB
19.0dB
0dB
-28dB
17.3dB
15.6dB
13.9dB
12.4dB
10.9dB
9.5dB
8.2dB
7.1dB
6.0dB
LOUDNESS
VOLUME
LOUDNESS GAIN
LOUDNESS GAIN SETTING EXAMPLE
1 Volume1= -10dB
MITSUBISHI SOUND PROCESSOR ICs
M61508FP
2 Volume1= -20dB
3 Volume 1=-30dB
MITSUBISHI
ELECTRIC
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