The M62498FP is an optimum digital sound controller IC for home audio.
It has a 5ch input selector,input volume,surround(3 variation),tone control(3 band),loudness and
2ch master volume.
It can control all of these functions with serial data.
FEATURES
PACKAGE
Built-in 5ch input selector.
Built-in input volume (2dB step/3bit)
IC for Dolby-pro-logic Interface
Built-in Surround (ON/OFF,High/Middle/Low(3 variation))
Tone control (Bass/Mid/Treble)
Built-in Loudness.
Main Volume (36 step (0 to -80dB,- ∞)
Microcomputer Interface
RECOMMENDED OPERATING CONDITIONS
Outline
0.8mm Pitch 450mil SSOP
(8.4mm x 17.5mm x 2.0mm)
42P2R-A
Supply voltage range ....Vcc= 4.5~5.5 Rated supply voltage.....Vcc=5V
SYSTEM CONFIGURATION
IC for
Dolby-pro-logic
IN A1
IN B1
IN C1
INPUT
VOLUMEMAIN
MAIN
VOLUME
A1
TONE CONTROL
IN D1
IN E1
IN A2
IN B2
IN C2
INPUT
VOLUME
&
LOUDNESS
MAIN
VOLUME
A2
SURROUND
IN D2
IN E2
&
LOUDNESS
µ-com INTERFACE
VOLUME
B1
MAIN
VOLUME
B2
VOL
OUT1
VOL
OUT2
IC for
Dolby-pro-logic
MITSUBISHI
ELECTRIC
CLK
DATA
( / )
17
1
Page 2
MITSUBISHI SOUND PROCESSORS
SELECT1
-18 to -80dB,-∞dB
0 to -16dB
-18 to -80dB,-∞dB
B2
100k
100k
100k
100k
12k
100k
100k
100k
100k
12k
9.5k
9.5k
100k
100k
200k
200k
12k
9.5k
12k
9.5k
B1
SELECT2
A2
ATT SW
M62498FP
DIGITAL SOUND CONTROLLER WITH SURROUND
PIN CONFIGURATION AND IC INTERNAL BLOCK DIAGRAM
CLOCK
GND
VOL OUT2
VOL IN2
VSELB OUT2
TRE2
MO2
MI2
BO2
BI2
LOUD2
VSELA OUT2
VSELA IN2
/REC-C2
IN VOL
OUT2
IN 2E
IN 2D
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
MAIN VOLUME 2
B
TONE
50k
MAIN
VOLUME2
0to -16dB
B
REC-C SW
D,E INPUT
ATT SW
VOLUME
SELECT
A
VOLUME
SELECT
REC-A SW
DATA
21
VCC
20
VOL OUT1
50k
50k
VOLUME
SELECT
AB
A
A B
VOLUME
SELECT
A1
MAIN VOLUME1
TONE
A
REC-A SW
A
MAIN
VOLUME1
REC-C SW
B
50k
B
D,E INPUT
19
VOL IN1
18
VSELB OUT1
17
TRE1
16
MO1
15
MI1
14
BO1
13
BI1
12
LOUD1
11
VSELA OUT1
10
VSELA IN1
9
8
7
6
/REC-C1
IN VOL OUT1
IN 1E
IN 1D
IN 2C
IN 2B
IN 2A
REC-B2/SUR1
REC-B1/SUR2
38
39
40
41
42
SW41
SW42
A
B
A
B
50k
INPUT
VOLUME 2
REC-B SW
REC-B SW
E INPUT
ATT SW
INPUT
VOLUME 1
E INPUT
ATT SW
REF AMP.
MITSUBISHI
ELECTRIC
50k
25k
25k
IN 1C
5
IN 1B
4
IN 1A
3
REF OUT
2
REF IN
1
( / )
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Page 3
PIN DESCRIPTION
MITSUBISHI SOUND PROCESSORS
M62498FP
DIGITAL SOUND CONTROLLER WITH SURROUND
Pin No.Symbol
1
REF IN
2
3,4,5,6,7,
36,37,38,39,40
8,35
9,34
10,33
11,32
12,31
13,30
14,29
15,28
16,27
IN 1A,1B,1C,1D,1E
2A,2B,2C,2D,2E
INVOL OUT1,2
VSELA IN1,2/REC-C1,2
VSELA OUT1,2
LOUD1,2
BI1,2
BO1,2
MI1,2
MO1,2
TRE1,2
Function
Input pin of the reference Amp.
Output pin oh the reference Amp.REF OUT
Input pin of the input selector Ch1 and Ch2
Output pin of the input volume 1 and 2
Input pin of the volume input selector A1 and A2
/Output pin of the REC-C1 and 2
Capacitor connection pin for
the volume changing noise reduction
Frequency characteristic setting pin
in the loudness part
Frequency characteristic setting pin
in the tone control(Bass).
Frequency characteristic setting pin
in the tone control(Mid).
Frequency characteristic setting pin
in the tone control(Treble).
17,26
18,25
19,24
20
21
22
23
41
42
VSELB OUT1,2
VOL IN1,2
VOL OUT1,2
VCC
DATA
CLOCK
GND
REC-B2/SUR1
REC-B1/SUR2
Output pin of the volume input selector B1 and 2
Input pin of the main volume
Output pin of the main volume
The power supply
Input pin of the serial data
Clock input pin for the serial data forwarding
GND
Output pin of the REC-B2/Device connection
pin for the surround external parts
Output pin of the REC-B1/Device connection
pin for the surround external parts
MITSUBISHI
ELECTRIC
( / )
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Page 4
DIGITAL SOUND CONTROLLER WITH SURROUND
6.0
ABSOLUTE MAXIMUM RATINGS
MITSUBISHI SOUND PROCESSORS
M62498FP
Symbol
VCC
Pd
K
Topr
Tstg
Parameter
Supply voltage
Power dissipation
Thermal derating
Operating temperature
Storage temperature
Conditions
Ta≤25°C
Ta>25°C
THERMAL DERATING
Limits
960
9.6
-20 to +75
-40 to +125
Units
V
mW
mW/ °C
°C
°C
1000
960
500
480
0
0
255075100
AMBIENT TEMPERATURE Ta [°C]
MITSUBISHI
ELECTRIC
80
125
150
( / )
4
17
Page 5
MITSUBISHI SOUND PROCESSORS
M62498FP
DIGITAL SOUND CONTROLLER WITH SURROUND
RECOMMENDED OPERATING CONDITION
(Ta=25°C,unless otherwise noted)
ParameterSymbolConditionsMINTYPMAXUnits
Supply voltage
Logic"H"level input
voltage
Logic"L"level input
voltage
VCC
VIH
VIL
GND
reference
GND
reference
2.4
GNDV
RELATIONSHIP BETWEEN DATA AND CLOCK
CLOCK
5.0
5.54.5
VCC
0.7
V
V
D0D1D2D3DDDEDF
DATA
Data signal is read at the rising
edge of clock.
Signal is latched at the rising
edge of the latch signal.
MITSUBISHI
ELECTRIC
Latch signal: H
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Page 6
MITSUBISHI SOUND PROCESSORS
INPUT
SELE
CTOR
M62498FP
DIGITAL SOUND CONTROLLER WITH SURROUND
DATA CONTROL SPECIFICATION
For kinds of input format options are availably by changing slot settings of
DC,DD.
(When the IC is powered up,the internal setting are not fixed.)
<MUTE cancellation data> (x is optional setting)
D04 D14 D24 D34 D44 D54 D64 D74 D84 D94 DA4 DB4 DC DD DE DF
X X X 0X 1X X X X X X 1100
Tip address
(1)
(2)
(3)
(4)
Note1)
SURROUN
D OF
OUTSIDE
SETTING
SURROUN
D OF
INSIDE
SETTING
D01 D11 D21 D31 D41 D51 D61 D71
TONE
CONTROL
TREBLE
TONE
CONTROL
MID
DO2 D12 D22 D32 D42 D52 D62 D72
A1 VOLUME CH 1
B1 VOLUME CH 1
DO3 D13 D23 D33 D43 D53 D63 D73
A1 VOLUME CH 2
B1 VOLUME CH2
DO4 D14 D24 D34 D44 D54 D64 D74
Note)
REC-B
Mute
ON:1
1
INPUT
VOLUME
0
INPUT
SELECTO
R
OFF:0
SURRO
UND
D81 D91 DA1 DB1 DCDD
TONE
CONTROL
00
BASS
D82 D92 DA2 DB2 DCDD
INPUT
INPUT
D
ATT
SW
E
ATT
SW
01
0
D83 D93 DA3 DB3 DCDD
TONE
LOUD
NESS
SW
A INPUT
VOLUME
SELECTOR
REC-C
ON:1
OFF:0
B INPUT
VOLUME
SELECTOR
REC-A
OFF:0
0
ON:1
10
11
00
0
0
0
DFDE
DFDE
0
DFDE
0
DFDED84 D94 DA4 DB4 DCDD
0
Note1)
Note2)
Surround of outside setting, It becomes"D54=1"--->SW41 and 42 setting = B fixation.Surround of
inside setting (Surround of outside non setting), It becomes "D54=0--->SW41 and 42 setting = A
fixation,It becomes volume input selector A setting = A fixation.
In power supply investing to Mute an output pin,it becomes setting like the following.Input selector = ALL
OFF,Outside surround mode setting,REC-A~C SW=OFF,B1 main volume=-∞ setting.The similar MUTE
setting can be done by setting D34=D54=1 to DC=DD=1,DE=DF=0.
Vo=0.5Vrms , RL=10KΩ,JIS-A
Pin19 to 24gains Rg=10KΩ
RL=10Ω,THD=1%
RL=10Ω,THD=1%
MIN
22
60
35
Limits
TYP
MAX
48
33KΩ
1.41.2
3.12.8
1.251.0
0
2.0-2.0
0.070.006
0.009
0.09
2.5
510
1020
-65
-80
6
15
Units
Vrms
Vrms
Vrms
dB
%
%
µVrms
µVrms
µVrms7
µVrms
dB
Volume maximum
attenuation quantity
ATTmax
Vi=1Vrms ,JIS-A
Main volume= -∞
MITSUBISHI
ELECTRIC
( / )
17
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dB-80
Page 10
MITSUBISHI SOUND PROCESSORS
M62498FP
DIGITAL SOUND CONTROLLER WITH SURROUND
(3)Tone control characteristics
Vi=0.2Vrms,Input pin to 9 and 34,Output pin to 17 and 26, A VOL input selector:Input to outside
surround,Tone input selector:Bypass,B VOL input selector:Tone,unless otherwise noted.
Parameter
Value of Boost(Bass)
Value of Cut(Bass)
Value of Boost(Mid)
Value of Cut(Mid)
Value of Boost(Treble)
Value of Cut(Treble)
Balance between channels
Symbol
G(BASS)B8610
G(MID)B-8-10-6
G(TRE)B8610
BALT
f=100Hz
Tone bass setting +8dB
f=100Hz
Tone bass setting -8dB
f=1kHz
Tone mid setting +8dB
f=1kHz
Tone mid setting -8dB
f=10kHz
Tone treble setting +8dB
f=10kHz
Tone treble setting -8dB
boost condition +8,-8dB
Test conditions
MIN
Limits
TYP
MAX
-8G(BASS)C-10-6
8G(MID)B610
0+2-2dB
Units
dB
dB
dB
dB
dB
dB-8G(TRE)B-10-6
MITSUBISHI
ELECTRIC
( / )
10
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Page 11
MITSUBISHI SOUND PROCESSORS
M62498FP
DIGITAL SOUND CONTROLLER WITH SURROUND
FUNCTION DESCRIPTION
(1)Main volume
This IC has 2 system independence electron volume of low warp percentage and low noise.
0dB~ -∞dB attenuation quantity can be set with 36 steps(0dB~ -44dB:2dB step,-44dB~ -76dB:4dB step,
-77dB ~ -80dB:1dB step).
The attenuation quantity to 0~ -16dB can be set in A1 Vol.
The attenuation quantity to 0~ -64dB can be set in B1 Vol.They are possible to control.
Equivalent circuit of MAIN VOLUME block
Tone
A VOL input
selector
0dB~ -16dB:
2dB step
VSELA OUT1,2
17,26pin
(2)Input selector,Input volume
This IC has 5 input selector of 2ch and Input volume of 2ch for Input TRIMMER.
The input selector D, E input is either of -8 dB of 0dB/ a choice in the input level with ATT SW.
The input volume of 0~-14dB can be set with the 2 dB step.
100k
A
B
C
D
E
12k
D Input ATT SW
(0dB/-8dB)
100k
100k
12k
9.5k
9.5k
&
Surround
block
B VOL input
selector
Condenser for the
changing noise
reduction
Note1) When inputting a signal above the power supply
voltage in D, E input choice, make ATT SW ON.
Note2)The setting of ATT SW changes the input
resistance of D, E input like the following.
ATT -8dB of D,E input setting: 20kohm(TYP value)
0dB~ -14dB:2dB step
50k
E Input ATT SW
(0dB/-8dB)
VSELB OUT1,2
17,26pin
+
-
+
-
0dB setting : 60kohm(TYP value)
VOL IN1,2
18,25pin
0dB~ -28dB:2dB step
-28dB~ -60dB:4dB step
-61dB~ -64dB:1dB step
To volume input selector A
VOL OUT1,2
19,24pin
+
-
Note3) At the time of input selector A~C, E or ALL OFF
D input ATT SW becomes -8dB setting.
At the time of input selector A~D or ALL OFF D input
ATT SW becomes -8dB setting.
MITSUBISHI
ELECTRIC
Note4)This SW is for the gain adjustment
in 0 dB setting in the D, E input ATT.
( / )
17
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Page 12
DIGITAL SOUND CONTROLLER WITH SURROUND
(3)Equivalent circuit of tone control
3-1Bass,Mid (Boost mode)
INOUT
MITSUBISHI SOUND PROCESSORS
M62498FP
R3
C1
R1
R2
C2
3-2 Bass,Mid (Cut mode)
IN
R2
f0 =
Q =
Gv =
R3
1
2π R1(R2+R3)C1C2
1
C1+C2
20log
C1C2R2
R1
R2+R3
R1
R3
+2
R1
+2
OUT
(Hz)
(dB)
f0 =
2π R1(R2+R3)C1C2
Q =
Gv =
1
C1+C2
20log
1
C1C2R2
R1
R3
+2
R1
R2+R3
R1
+2
(dB)
(Hz)
C2
R1
MITSUBISHI
ELECTRIC
C1
( / )
17
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Page 13
3-3 Treble (Boost)
MITSUBISHI SOUND PROCESSORS
M62498FP
DIGITAL SOUND CONTROLLER WITH SURROUND
Gv =
20log
R1+R2
3-4 Treble (Cut)
Gv =
20log
R1
R1+R2
R1
(dB)
(dB)
IN
IN
OUT
R2
R1
C1
R2
OUT
R1
<Curve of characteristics>
Bass MidTreble
+8dB
0dB
-8dB
1001k10k
Frequency f(Hz)
MITSUBISHI
ELECTRIC
setting
+8dB
setting
-8dB
C1
( / )
17
13
Page 14
MITSUBISHI SOUND PROCESSORS
M62498FP
DIGITAL SOUND CONTROLLER WITH SURROUND
(4) Equivalent circuit of Vocal cut
This IC incorporates the circuit which realizes a vocal cut function simply by lowering gain in
the area using the mid circuit of the tone control.
But be careful because vocal cut ON setting,the mid of the tone control can not used.
VOCAL CUT SW
VOCAL CUT ON setting :SW OFF
IN
VOCAL CUT OFF setting:SW ON
OUT
R2
R3
R2+R3=200KΩ
Gv =
1
2π R1(R2+R3)C1C2
2
20log
R2+R3
R1
+2
(dB)
(Hz)f0 =
C2
R1
C1
At vocal cut ON setting, the frequency characteristic can be set like the following,by the
resistance of putting outside:The fixed number of R1 and C1,C2.
<CHARACTERISTIC CURVE>
1.Vocal cut characteristic
edition
R=3KΩ,C1=C2=0.012µF
8dB setting
+10dB
f0=550Hz
Gv=-30dB
Tone mid corrugation at
Vocal cut OFF setting
2.Tone control mid
characteristic edition
R=10KΩ,C1=C2=6800pF
8dB setting
+10dB
f0=530Hz
Gv=-20dB
Tone mid corrugation at
Vocal cut OFF setting
0dB
-10dB
-20dB
-30dB
550
1001k10k
Frequency f(Hz)
Tone mid corrugation at
Vocal cut ON setting
MITSUBISHI
ELECTRIC
0dB
-10dB
-20dB
-30dB
550
1001k10k
Frequency f(Hz)
( / )
14
Tone mid corrugation at
Vocal cut ON setting
17
Page 15
DIGITAL SOUND CONTROLLER WITH SURROUND
LOUDNESS
SW
(5) LOUDNESS
This IC built-in a center tap -type loudness circuit.
0dB~ -16dB:
A VOL input
selector
2dB step
Tone
&
Surround
block
MITSUBISHI SOUND PROCESSORS
M62498FP
VSELB OUT1,2
17,26pin
+
-
B VOL input
selector
VOL IN1,2
18,25pin
VOL OUT1,2
19,24pin
+
-
LOUD1,2
11,32pin
LOUDNESS PART
(6)Equivalent circuit of surround block
5k
Ch2
1k
1µ
external parts
200k
10k
5k
0dB~ -28dB:2dB step
-28dB~ -60dB:4dB step
-61dB~ -64dB:1dB step
5k
Out2
5k
5k
Ch1
5k
MITSUBISHI
ELECTRIC
200k
5k
( / )
17
15
Out1
Page 16
MITSUBISHI SOUND PROCESSORS
logic
-18~ -80dB,-∞dB
0~-16dB
-18~ -80dB,-∞dB
VOLUME1
VOLUME2
100k
100k
100k
100k
12k
100k
100k
100k
100k
12k
9.5k
9.5k
100k
100k
200k
200k
12k
9.5k
12k
9.5k
logic
DIGITAL SOUND CONTROLLER WITH SURROUND
APPLICATION EXAMPLE
(1)Surround of outside setting(for Dolby-Pro-logic)
<"D54=1"--->SW41, 42 setting = B fixation.>
But, in case of this specification inside surround can not be used.
CLOCK
22
M62498FP
Units Resistance:Ω
Capacitance:F
21
DATA
REC-A2
2.2µ
2700p
8200p
7.5k
8200p
0.1µ
7.5k
0.1µ
0.1µ
10µ
IC for Dolby-Plo-
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
MAIN VOLUME2
B
INOUT TONE
SELECTOR 2
50k
MAIN
VOLUME2
0~-16dB
B
REC-C SW
REC-A SW
D,E
INPUT
ATT SW
VOLUME
SELECTOR
B2
A
VOLUME
SELECTOR
A2
20
19
50k
50k
MAIN VOLUME1
18
17
VOLUME
SELECTOR
B1
B
A
16
15
14
13
12
INPUT TONE
SELECTOR 1
AB
A B
11
2.2µ
2700p
8200p
7.5k
8200p
0.1µ
7.5k
0.1µ
0.1µ
10
50k
MAIN
REC-A SW
VOLUME1
B
REC-C SW
D,E
INPUT
ATT SW
VOLUME
SELECTOR
A1
A
A
10µ
9
IC for Dolby-Plo-
8
REC-A1
7
6
REC-B2
REC-B1
38
39
40
41
42
SW41
SW42
5
4
3
2
10µ
1
10µ
16
( / )
17
INPUT
E
INPUT
ATT
SW
REF Amp.
50k
51k
51k
50k
INPUT
E
INPUT
ATT
A
B
A
B
SW
REC-B SW
REC-B SW
MITSUBISHI
ELECTRIC
Page 17
MITSUBISHI SOUND PROCESSORS
-18~ -80dB,-∞dB
0~ -16dB
-18~ -80dB,-∞dB
VOLUME1
VOLUME2
100k
100k
100k
100k
12k
100k
100k
100k
100k
12k
9.5k
9.5k
100k
100k
200k
200k
12k
9.5k
12k
9.5k
M62498FP
DIGITAL SOUND CONTROLLER WITH SURROUND
(2)Surround of outside non setting(for Dolby-Pro-logic)
<"D54=0"--->SW41, 42 setting = A fixation, Volume input selector A setting=A fixation.>
Units Resistance:Ω
Capacitance:F
DATACLOCK
22
21
2.2µ
8200p
7.5k
0.1µ
7.5k
0.1µ
REC-C2
REC-A2
2700p
8200p
0.1µ
10µ
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
MAIN VOLUME2
B
INPUT TONE
SELECTOR2
50k
MAIN
VOLUME2
0~ -16dB
B
REC-C SW
D,E INPUT
ATT SW
VOLUME
SELECTOR
B2
A
VOLUME
SELECTOR
A2
REC-A SW
20
19
50k
50k
MAIN VOLUME1
18
17
2.2µ
16
15
14
13
12
11
10
9
8
7
2700p
8200p
7.5k
8200p
0.1µ
7.5k
0.1µ
0.1µ
10µ
REC-C1
REC-A1
VOLUME
SELECTOR
B1
AB
A
A B
VOLUME
SELECTOR
A1
A
REC-A SW
B
A
INPUT TONE
SELECTOR1
MAIN
VOLUME1
B
REC-C SW
D,E INPUT
ATT SW
50k
6
1µ
1k
38
39
40
41
42
SW41
SW42
50k
INPUT
50k
INPUT
5
4
E INPUT
ATT SW
A
REC-B SW
B
A
REC-B SW
B
MITSUBISHI
ELECTRIC
E INPUT
ATT SW
REF Amp.
51k
51k
3
2
10µ
1
( / )
17
17
10µ
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