MITSUBISHI SOUND PROCESSORS
M62444FP
4CH ELECTRIC VOLUME WITH TRIMMER
DESCRIPTION
The M62444FP is 4 channels electric volume with trimmer controlled 3-wire serial
data.
The IC is suitable for use in home-use audio systems and TV sets.
FEATURES
PACKAGE
Electric volume(Master volume)
•Volume level ••••• 0dB to –80dB, –∞dB (32steps)
Electric volume(trimmer volume)
•Volume level •••••• 0dB to –24dB
(1dB/step)
2 channels bass boost(loudness type)
6 Output ports
Built-in microcomputer interface circuit controlled
by 8-bit serial data.
Outline
42P2R
APPLICATION
DVD,Home Audio equipment,TV
RECOMMENDED OPERATING CONDITIONS
Supply voltage range •••• ±4.5 to ±7.3V (analog)
4.5 to 5.5V (digital)
Rated supply voltage •••• ±7.0V (analog)
5.0V (digital)
SYSTEM BLOCK DIAGRAM
L in
R in
C in
trimmer
volume
bass
boost
master
volume
L out
R out
master
volume
trimmer
volume
C out
SW out
SW in
µ–com
interface
LATCH
D-62444-86A
DATA
MITSUBISHI
ELECTRIC
CLK
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MITSUBISHI SOUND PROCESSORS
M62444FP
4CH ELECTRIC VOLUME WITH TRIMMER
PIN CONFIGURATION AND IC INTERNAL BLOCK DIAGRAM
TIN1
1
42
AVDD
TNF1
2
41
TIN3
TOUT1 3
40
TNF3
VIN1
4
39
TOUT3
VNF1
5
38
VIN3
VOUT1 6
37
BB3
GND1 7
36
VNF3
TIN2
8
35
VOUT3
TNF2
9
34
GND2
TOUT2 10
33
GND3
VIN2
11
32
TIN4
VNF2
12
31
TNF4
VOUT2 13
30
TOUT4
DGND 14
29
VIN4
28
BB4
27
VNF4
CLOCK 17
26
VOUT4
DVDD 18
25
AVSS
PORT1 19
24
PORT6
PORT2 20
23
PORT5
PORT3 21
22
PORT4
DATA 15
MCU
LATCH 16
I/F
MITSUBISHI
ELECTRIC
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MITSUBISHI SOUND PROCESSORS
M62444FP
4CH ELECTRIC VOLUME WITH TRIMMER
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Conditions
Ratings
Unit
Vsupply
Supply Voltage
Pd
Power dissipation
Ta ≤ 25°C
1000
K
Thermal derating
Ta > 25°C
10
mW/ °C
AVDD-AVSS
16
V
mW
Topr
Operating temperature
-20 to +65
°C
Tstg
Storage temperature
-40 to ±125
°C
THERMAL DERATING
(MAXIMUM RATING)
1.5
1.0
0.6
0.5
0
0
25
50
65
75
100
AMBIENT TEMPERATURE
MITSUBISHI
ELECTRIC
125
150
Ta [°C]
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MITSUBISHI SOUND PROCESSORS
M62444FP
4CH ELECTRIC VOLUME WITH TRIMMER
RECOMMENDED OPERATING CONDITION
( Ta=25°C, unless otherwise noted )
Parameter
Symbol Condition
AVDD
Positive
supply voltage
MIN
TYP
MAX
4.5
7.0
7.3
Unit
V
DVDD
4.5
5.0
5.5
Negative
supply voltage
AVSS
-7.3
-7.0
-4.5
V
High-level Input
Voltage
VIH
(DVDD/2)+1
DVDD
V
Low-level Input
Voltage
VIL
DGND
Output port
maximum current
IOH
(DVDD/2)-1
V
3
mA
"H" level
(note) AVSS ≤ DGND < DVDD ≤ AVDD
DATA TIMING (Recommended conditions)
H
DATA
D0
D1
D6
D7
D0
L
H
CLOLK
L
H
LATCH
L
note : CLOCK and LATCH function at raising edges of pulse .
MITSUBISHI
ELECTRIC
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MITSUBISHI SOUND PROCESSORS
M62444FP
4CH ELECTRIC VOLUME WITH TRIMMER
CLOCK, DATA,LATCH TIMING
tcr
75%
CLOLK
25%
tr
tf
tWLC
tWHC
75%
DATA
25%
tr
t SD
tf
t HD
tWHC
tr
tf
tSL
75%
25%
LATCH
DIGITAL BLOCK TIMING REGULATION
Parameter
Symbol
t cr
t WHC
t WLC
tr
tf
t SD
t HD
t SL
t WHL
Limits
Min typ Max
8
CLOCK cycle time
CLOCK pulse width ("H"level)
3.2
CLOCK pulse width ("L"level)
3.2
0.8
CLOCK,DATA,LATCH rise time
CLOCK,DATA,LATCH fall time
0.8
DATA setup time
1.6
DATA hold time
1.6
LATCH setup time
2
LATCH pulse width
3.2
MITSUBISHI
ELECTRIC
Unit
µs
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MITSUBISHI SOUND PROCESSORS
M62444FP
4CH ELECTRIC VOLUME WITH TRIMMER
DIGITAL CONTROL SPECIFICATION
Fore kinds of input format options are available by changing slot settings of D6 and D7.
(When the IC is powered up , the internal settings are not fixed.)
(1)
D01
D11
D21
D31
D41
TRIMMER VOLUME 1
(2)
D02
D12
D22
D32
D42
TRIMMER VOLUME 2
(3)
D03
D13
D23
D33
D43
TRIMMER VOLUME 3
(4)
D04
D14
D24
D34
D44
TRIMMER VOLUME 4
(5)
D05
D15
D25
D35
D45
D51
D61
D71
0
0
0
D52
D62
D72
1
0
D53
D63
0
0
D54
D64
1
0
D55
D65
BASS BOOST
(LOUDNESS)
MASTER VOLUME
(6)
D06
OUTPUT
PORT 1
1: H
0: L
D16
D26
OUTPUT OUTPUT
PORT 2 PORT 3
1: H
1: H
0: L
0: L
D36
1 : ON
0 : OFF
D46
OUTPUT OUTPUT
PORT 4 PORT 5
1: H
1: H
0: L
0: L
MITSUBISHI
ELECTRIC
1
D56
D66
OUTPUT
PORT 6
1: H
0: L
1
0
D73
1
D74
1
D75
0
D76
1
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MITSUBISHI SOUND PROCESSORS
M62444FP
4CH ELECTRIC VOLUME WITH TRIMMER
SETTING CODE
TRIMMER VOLUME 1 to 4
Note : Do not input other data
than the above.
MASTER VOLUME
Note : Do not input other data
than the above.
ATT
D0X
D1X
D2X
D3X
D4X
– 0dB
– 1dB
– 2dB
– 3dB
– 4dB
– 5dB
– 6dB
– 7dB
– 8dB
– 9dB
– 10dB
– 11dB
– 12dB
– 13dB
– 14dB
– 15dB
– 16dB
– 17dB
– 18dB
– 19dB
– 20dB
– 21dB
– 22dB
– 23dB
– 24dB
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
ATT
D05
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
D15
D25
D45
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
D35
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
– 0dB
– 2dB
– 4dB
– 6dB
– 8dB
– 10dB
– 12dB
– 14dB
– 16dB
– 18dB
– 20dB
– 22dB
– 24dB
– 26dB
– 28dB
– 30dB
– 32dB
– 34dB
– 36dB
– 38dB
– 40dB
– 44dB
– 48dB
– 52dB
– 56dB
– 60dB
– 64dB
– 68dB
– 72dB
– 76dB
– 80dB
– ∞
MITSUBISHI
ELECTRIC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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MITSUBISHI SOUND PROCESSORS
M62444FP
4CH ELECTRIC VOLUME WITH TRIMMER
ELECTRICAL CHARACTERISTICS
( Ta=25°C, AVDD=7.0V, AVSS=-7.0V, DVDD=5.0V,
f=1kHz, TRIMMER/MASTER VOLUME=0dB, Post
Amp.gain=0dB, unless otherwise noted. )
(1) Power supply characteristics
Parameter
Symbol
Test condition
Analog positive
circuit current
AIdd
AVDD=7.0V, AVSS= -7.0V
Current at pin 42
No signal
Analog negaitive
circuit current
AIss
AVDD=7.0V, AVSS= -7.0V
Current at pin 25
No signal
DIdd
DVDD= 5V
Current at pin 18
No signal
Digital circuit current
Limits
MIN TYP MAX
30
-40
40
mA
-30
0.1
Unit
mA
mA
1.0
(2) Input / Output characteristics
Parameter
Symbol
Maximum output voltage
Vomax
Test condition
MIN
6,13,35,26pin OUTPUT
RL=10KΩ,THD=1%
3.0
-2.0
Limits
TYP MAX
4.0
Unit
Vrms
Pass gain
Gv
Vin=1Vrms,FLAT,
1,8,41,32pin INPUT
6,13,35,26pin OUTPUT
Distortion
THD
6,13,35,26pin OUTPUT
Vi=0.2Vrms,RL=10KΩ,
BW=400 to 30kHz
Vno0
6,13,35,26pin OUTPUT
No signal,JIS-A
Rg=0Ω,VOL=0dB
3.0
15
µVrms
Vno∞
6,13,35,26pin OUTPUT
No signal,JIS-A
Rg=0Ω,VOL=-∞
2.5
7.5
µVrms
Output noise voltage
Maximum attenuation
ATTmax
Volume gain
between channels
DVOL
Crosstalk between channels
CT
Bass boost gain
OUTPUT PORT "H" current
OUTPUT PORT "H" voltage
6,13,35,26pin OUTPUT
JIS-A
Rg=1kΩ,TRIMMER VOL=0dB
IOH
VOH
2.0
dB
0.003 0.05
%
-86
-95
-1.5
0
1.5
dB
-97
-60
dB
11
15
dB
dB
6,13,35,26pin OUTPUT
Vo=0.5Vrms,RL=10KΩ,JIS-A
Rg=1kΩ
Gvbb
0
Vo=0.5Vrms,f=100Hz
TRIMMER VOL=0dB,MASTER VOL=-26dB
Bass boost=OFF ON
41,32pin INPUT 35,26pin OUTPUT
7
VOH=6.5V,AVDD=7V
1.0
mA
IOH=3mA,AVDD=7V
5.5
V
MITSUBISHI
ELECTRIC
( 8 / 11 )
MITSUBISHI SOUND PROCESSORS
M62444FP
4CH ELECTRIC VOLUME WITH TRIMMER
FUNCTION DESCRIPTION
Bass Boost Equivalent Circuit
12.6K
5.97K
11.7K
RL=
3.08K
55.8K
57K
ZL
1.6K
3.57K
CL
Bass Boost loudness Equivalent Circuit (Center Tup Type)
1
Regard "RL+ wCL
" as "ZL"
Next formula show the frequency characteristic.
Gv=20 Log
ZL / / 57K
5.97K/ / ( 11.7K + ZL / / 57K)
( 11.7K + ZL / / 57K
)
12.6K + 5.97K/ / ( 11.7K + ZL / / 57K)
When a frequency is enough low ,
Gv=20 Log
(
57K
5.97K/ / ( 11.7K + 57K)
12.6K + 5.97K/ / ( 11.7K + 57K)
11.7K + 57K
) = – 11.9dB
When a frequency is enough high ,
Gv=20 Log
3.08K / / 57K
( 11.7K + 3.08K / / 57K
5.97K/ / ( 11.7K + 3.08K / / 57K)
12.6K + 5.97K/ / ( 11.7K + 3.08K / / 57K)
) = – 26dB
w0=16.8K • CL
-12dB
f=100Hz CL=0.1µF
-26dB
VOL-26dB
100Hz
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ELECTRIC
frequency
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MITSUBISHI SOUND PROCESSORS
M62444FP
4CH ELECTRIC VOLUME WITH TRIMMER
SYSTEM DIAGRAM
INPUT impedance
25kΩ(TYP)
IN1
-
IN2
TRIMMER VOLUME 1
0dB to – 24dB
(25steps)
MASTER
VOLUME 1
OUT1
OUT2
0dB to –∞
(32steps)
INPUT impedance
25kΩ (TYP)
IN3
-
IN4
TRIMMER
VOLUME 3
MASTER
VOLUME 1
0dB to – 24dB
(25steps)
OFF:Bass boost ON
ON :Normal
OUTPUT PORT
OUT3
OUT4
0dB to – ∞
(32steps)
AVDD
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ELECTRIC
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MITSUBISHI SOUND PROCESSORS
M62444FP
4CH ELECTRIC VOLUME WITH TRIMMER
APPLICATION EXAMPLE
IN1
1
42
2
41
3
40
4
39
+7
V
IN3
3.3µ
3.3µ
3.3µ
3.3µ
5
38
6
37
7
36
3.3µ
OUT1
0.1µ
3.3µ
IN2
8
35
9
34
10
33
11
32
12
31
13
30
OUT3
3.3µ
3.3µ
IN4
3.3µ
3.3µ
OUT2
3.3µ
14
15
MCU
29
MCU
16
28
0.1µ
27
I/F
3.3µ
OUT4
17
26
5V
18
25
22kΩ
19
24
22kΩ
22kΩ
20
23
22kΩ
22kΩ
21
22
22kΩ
MITSUBISHI
ELECTRIC
-7V
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