Datasheet M62460FP Datasheet (Mitsubishi)

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

DESCRIPTION

The M62460FP is a“super”single chip LSI supporting the Dolby Pro
Logic surround.This LSI contains all sorts of functions including delay
circuit function.In addition,it has Digital Space Surround functions
(Disco,Hall,Live mode etc.) and echo function for karaoke.
Note:Use of this LSI requires the license of Dolby Laboratories
Licensing Corporation

Dolby and the double-D symbol are trademarks of Dolby Laboratories
Licensing Corporation.San Francisco,CA94103-4813,USA.
This device available only to licensees of Dolby Lab.
Licensing and application information may be obtained from Dolby Lab.

Features (Mode)

Dolby Pro Logic

Digital Space Surround

Echo (KARAOKE)

Dolby Pro Logic Surround System which includes all of required
functions.

DISCO,Hall,LIVE mode and 5 delay time positions

Short echo:td=147.5msec,Long echo:td=196.6msec

Outline

Outline 80P6N

0.8mm pich QFP
(20.0mmX14.0mmX2.8mm)

BY-PASS

Input signal through mode

System Configuration

Lch IN

Rch IN

MIC IN

L+R

2

L-R

2

Input
Auto­Balance
Control

Noise
Sequencer

S

LPF-IN LPF-OUT

Digital Delay

Adaptive
Matrix

7kHz
LPF

Modified
Dolby
B-NR

L
R

C

Center/
operating
mode
control

S

NR-IN

MCU INTERFACE

Center
Trim

Surround
Trim

L

R

C

S

Master
Volume
Control

Lch

Rch

CENTER

SURROUND

DATA

MITSUBISHI

ELECTRIC

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1

SCK REQ

C-62460-72E

PIN CONFIGURATION

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

NGC1

LOUT

ROUT

CT

COUT

ST

SOUT

CMC

SMRO

SMRI

AGND

MIC IN

DVdd

TEST CNT

DATA

SCK

REQ

LO1

LO2

LO3

XIN

XOUT

DVss

AVss

IREF

78

VREFG

77

76

XXXXXX

NGC3

NGC2

80

79

1

2

3 4

5

6

7 8

9

10

11

12 13

14 15

16 17 18

19

20

21 22

23

24

VREFA

AVcc

75

HOLDC

74

73

RIN

LIN

72

RT

71

RBPF

LT

70

69

RLI

68

LBPF

67

LLI

66

M62460FP

RLC6

65

64

RLC8

63

RLC3

62

RLC7

RLC4

6061

RLC1

59

RLC2

58

RLC5

57

PSC4

56

PSC1

55

PSC5

54

PSC2

53

PSC6

52

PSC3

51

DBC3

50

DBC2

49

DBC1

48

LPIN

DBIN

4647

S' OUT

45

FBIN SU

44

FBIN EC

43

DELAY SIG OUT

42

DELAY SIG IN

41

VOL OUT

25

AVdd

26

VREFD

27

28

DELAY IN

MIX OUT

30

29

LPF1 IN2

LPF1 IN1

33

32

31

LPF1 OUT

AD INT IN

AD INT OUT

MITSUBISHI

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2

35

34

AD CONT

DA CONT

36

37

DA INT OUT

DA INT IN

39

38

LPF2 IN1

LPF2 IN2

40

LPF2 OUT

C-62460-72E

BLOCK DIAGRAM

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

NGC1

LOUT

ROUT

CT

COUT

ST

SOUT

CMC

SMRO

SMRI

AGND

MIC IN

DVdd

TEST CNT

DATA

SCK

REQ

LO1

LO2

LO3

XIN

XOUT

DVss

AVss

IREF

77

78

IREF VREF

SELECTOR1

VREFG

76

VREFA

M

M

+/-

SELECTOR3

NGC3

NGC2

80

79

VOL

+

DVdd

DATA SCK REQ

AVdd

SEQUENCER

NOISE

MCU interface

CLK

VREFD

1

2

RL

3 4

CT

5

ST SC

6

VOL

7 8

9

-

10

AGND

11

12 13

TEST

CNT

14 15

16 17 18

19

20

21 22

DVss

23

AVss

24

VREFA

+

-

+ -

S'

AVcc

75

AVcc

LPF

74

L-R

2

-9.2dB

ATT

HOLDC

RIN

73

SERVO

L+R

2

LIN

72

VCA

L

CONTROL

R C

SELECTOR2

MIC

16kSRAM

LOGIC

A/D

RT

LT

70

71

SELECTOR

BALANCE

AUTO

CENTER MODE

RBPF

69

BPF

L C R

COMBINNING

D/A

RLI

68

L+R L-R

VCA

NETWORKS

S'

+9.2dB

LBPF

LLI

66

67

BPF

+9.2dB

MOS SFB

LPF

RLC6

65

64

FULL WAVE

RECTIFIER

63

62

DIFFERENCE

AMPLIFIERS

AND THRESHOLD SWITCHES

NR DECODER

+

SU

EC

MIX

6061

LOG

59

58

57

DUAL-TIME CONSTANT

56

55

54

53

52

51

MODIFIED

B-TYPE

50

49

48

-

4647

45

44

43

42

VOL

41

RLC8

RLC3

RLC7

RLC4

RLC1

RLC2

RLC5

PSC4

PSC1

PSC5

PSC2

PSC6

PSC3

DBC3

DBC2

DBC1

LPIN

DBIN

S' OUT

FBIN SU

FBIN EC

DELAY SIG OUT

DELAY SIG IN

VOL OUT

25

AVdd

26

VREFD

27

28

DELAY IN

MIX OUT

30

29

LPF1 IN2

LPF1 IN1

33

32

31

LPF1 OUT

AD INT IN

AD INT OUT

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ELECTRIC

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3

35

34

AD CONT

DA CONT

36

37

DA INT OUT

DA INT IN

39

38

LPF2 IN1

LPF2 IN2

40

LPF2 OUT

C-62460-72E

7.Discription of pin

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

No. Symbol

2

3

4

5

6

LOUT

ROUT

CT

COUT

ST

7 SOUT

Funtion

Lch output

Rch output

Cch output

Cch output

Sch output

Sch output

Voltage

4V

4V

4V

Discription of pin

Direct output R-/L- channel
when the operation mode
is BY-PASS.
When the mode is
4channel,they output
Dolby prologic
R-/L-channel signals.

No output any signals
when the operation mode
is centermode is OFF or
set to PHANTOM

COUT is output from
C.Trimmer.

This pin outputs surround
signals.Output is selected
from BNR out.Dout No
output signal when the
operation mode is
3 STEREO/MUTE.

SOUT is output from
S.Trimmer.

Equivalent circuit

2 3

4 5

6 7

9

10

SMRO

SMRI

amplifier
output

amplifier
input]

This is a amplifier to
control mixed level

4V

of surround output
with external resistance.

MITSUBISHI

ELECTRIC

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4

9

10

C-62460-72E

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

No. Symbol

12

14

15

16

17

MIC IN

TEST CNT

DATA

SCK

REQ

Funtion

MIC input

TEST
control

serial data
"DATA" input

serial data
"SCK" input

serial data
"REQ" input

Voltage

4V

0

0

Discription of pin

Microphone input
with ECHO MODE

Fixed to GND

input via serial data
from MCU.

Equivalent circuit

12

14

15

16
17

buffer

buffer

buffer

18

19

20

21

22

26

LO1

LO2

LO3

XIN

XOUT

VREFD reference output

port output

Osillator input

Osillator output

Open collector output
pin(NPN Tr)

connect a 4 - MHz
ceramic resonator

1/2 Vcc output.
Connect a filter
capacitor.

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ELECTRIC

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5

18 19

21 22

262.5V

C-62460-72E

20

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

No. Symbol

27

28

40

41

MIX OUT

DELAY IN

LPF2 OUT

VOL OUT

Funtion

S',L+R,L-R and
MIC output

delay input

delay signal
output

output of a
delay volum

Voltage

4V

2.5V

2.5V

Discription of pin

Signal output
precedent to delay
generator that is
S`,L+R,L-R and MIC
output

This is s delay input.
Please input by AC
cuppring.

delay signal
output

This is output of a
delay volum that
possible to control
+3dB~∞

Equivalent circuit

27

28

40

41

42

43

44

45

DELAYSIG IN

DELAYSIG OUT

FBIN EC

FBIN SU

input from mixing
amplifier

Feedback signal
input

4V

Delay signal input to
a mixing amplifier

4V

Delay signal output
from a mixing amplifier

Feedback signal input
with ECHO MODE

4V

Feedback signal input
with SURROUND MODE

MITSUBISHI

ELECTRIC

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6

42

43

42

C-62460-72E

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

No. Symbol Funtion

46

47

48

S'OUT

LPIN

DBIN

Sch output 4V

Negative input
of LPF

LPF output

Voltage

4V

Discription of pin

Sorround channel
output to delay
generator.
Always outputs
signals,irrespectiv of
the operation mode
(2-/3-/4-channel)

This amplifier
compornent 7KHz-LPF
with external resistances
and capaciters.
LPF output is conected
to input of Modifide BNR.

Equivalent circuit

46

47

72

73

70

71

LIN

RIN

LT

RT

Lch input

Rch input

Auto-balance
Lch output

Auto-balance
Rch output

Input of Lch and Rch
that is non-inverted
input type.
Please pul-up to VREF

4V

by external resistances
for DC bias.

Auto-balance output.

4V

48

72 73

70 71

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ELECTRIC

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C-62460-72E

ABSOLUTE MAXIMUM RATINGS

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

Symbol Parameter Test conditions

Vcc

Pd
K

Topr
Tstg

Supply voltage
Power dissipation

Thermal derating
Operating temperature

Storage temperature

TERMAL DERATING

standard board

Ta≥25°C

1.5

1.37

1.0

0.685

0.5

POWER DISSIPATION Pd (W)

0

25 50 75 100 125 150

0

AMBIENT TEMPERATURE Ta (°C)

Limits

10.5

6.5VDD V

1.37

13.7

-20~+75

-40~+125

Unit

V

W

mW/°C

°C
°C

Standard board

*

•board size

70mmX70mm

•board thickness

•board material

glass epoxy

•copper pattern
copper thickness

copper size

0.25mm(width)
30mm(length / lead)

RECOMMENDED OPERATING CONDITION

Symbol

Vcc
VDD

fck OSC clock

Analog supply voltage
Digital supply voltage

Parameter

Conditions

1.6mm

18µm

Min Typ Max

Ratings

9.0

5.0 5.54.5
4

10.08.0

Unit

V
V

MHz

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ELECTRIC

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C-62460-72E

MITSUBISHI SOUND PROCESSORS

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

ELECTRICAL CHARACTERRISTICS (DECODER)

Vcc=9V,VDD=5V 0dB Reference=300mVrms/1KHz at C-OUT unless otherwise noted.

(Cch Trimmer=0dB)

M62460FP

Symbol

Parameter

Conditions Unit

Min

Limits

Typ Max

Overall

Icc
IDD

Vref

Circuit Current Quiescent

Circuit Current Quiescent

Reference Voltage

Quiescent

3.5

Input Auto Balance

CPR
CER

Capture Range
Error Correction

Adaptive Matrix

∆VoL

MR L,R,C,S'ch out
HRAM

THDAM

SNAM

Noise Sequencer (0dBd Reference is input at NR-IN when adjust to 0dB (300mVrms/100Hz) at S out.

Vno

∆Vno

Modified B type Noise Reduction

VGNR Vin=0dBd,f=100Hz
DEC1

DEC2
DEC3

DEC4

THDNR

HRNR THD=1%

SNNR

Output Level Accuracy

relative to C ch

Matrix Rejection relative

Headroom

Total Harmonic Distortion

Signal to Noise Ratio

Output Noise Level

Output Level Accuracy

relative to C ch

Voltage Gain
Decode Responce 1

Decode Responce 2
Decode Responce 3

Decode Responce 4

Total Harmonic Distortion

Headroom

Signal to Noise Ratio

L,R,S'ch out

L,R,C,S' out
L,R,C,S'ch out
L,Rch out 2ch mode

Rg=0Ω,weighted CCIR/AMR

L,Rch out 2ch mode

L,R,S'ch out

4ch mode

Vin=0dBd,f=1.0kHz
Vin=-15dBd,f=1.4kHz

Vin=-20dBd,f=1.4kHz
Vin=-40dBd,f=5.0kHz

Vin=0dBd,f=1kHz

Rg=0 Ω,weighted CCIR/AMR

4ch mode

25
15

75
95

-15

-0.5 0.5

-1.6

-3.0

-4.9

-6.8 -3.8

15
73

C,S ch Trimmer

ATT-12

ATTmax

TS

attenuation level:-12dB

Maximum attenuation

Trimmer step

Surround (L+R,L-R)

THDSU

SNSU

Total Harmonic Distortion

Signal to Noise Ratio

<MIXOUT>

Digital Input=-12
Digital Input=-31

Vin=0dBd,f=1kHz

Rg=0 Ω,weighted CCIR/AMR

-14

-37

85

25
25

4.0

±5
±4

0

40
17

0.05

0.002
80

100

-12.5
0

9.2

-0.1

-1.5

-3.4

-5.3

0.07
17

78

-12

-31 -25

1.0 1.40.6

0.05
90

50
50

4.5

0.5-0.5

0.2

0.05

-10

1.4
0

-1.9

0.3

-10

0.2

mA
mA

V

dB
dB

dB
dB

dB
%

dB

dB
dB

dB

dB

%
dB

dB

dB

dB

dB

%

dB

MITSUBISHI

ELECTRIC

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C-62460-72E

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

ELECTRICAL CHARACTERRISTICS (DIGITAL DELAY)

(Ta=25°C,Vcc=9V,VDD=5V,Vin=200mVrms,fck=4MHz unless otherwise noted)

Symbol

Parameter

Digital Delay

Td

Gv

THD

Vomax

No

Delay Volume

Gv

ATTmax Maximum attenuation

Delay time

Input-output gain

Output distortion

Maximum output voltage 30kHz LPF,THD=10%

Output noise voltage

(VOL OUT)

Input-output gain

Conditions

See Delay time contorol (14/20)
for delay time setting.

Td=15.4ms
Td=20.0ms

Td=28.6ms

30kHz LPF

Rg=620Ω
Vi=0mVrms,
IHF-A

Volume max

Delay off mode,Volume min,IHF-A

Td=41.0ms

Td=49.2ms
Td=147.5ms

Td=196.6ms

Td=15.4ms
Td=20.0ms

Td=28.6ms
Td=41.0ms
Td=49.2ms

Td=147.5ms
Td=196.6ms

Limits

Min Typ Max

12.4

17.0

25.6

38.0

186.6

0.7

15.4

20.0

28.6

41.0

49.2

147.5

196.6
0

0.3

0.3

0.5

0.6

0.7

1.5

2.0

1.0

-92

-92

-92

-90

-90

-82

-77

3

-70

18.4

23.0

31.6

44.0

52.246.2

157.5137.5

206.6

3.0-3.0

0.6

0.6

1.0

1.2

1.4

3.0

4.0

-80

-80

-80

-75

-75

-67

-62

60

-60

Unit

ms

dB

%

Vrms

dBv

dB
dB

MITSUBISHI

ELECTRIC

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C-62460-72E

TEST CIRCUIT

0.1µ

0.0018µ

Vo40

39

40

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

+5V

AVdd

Vo27

V i28

0.068µ *

0.01µ

38

0.1µ *

37

35

36

0.068µ *

0.1µ *

33

34

0.0018µ

0.01µ

31

30

32

29

22µ

1µ

1µ

28

27

25

26

The capacitors maked

with * should be of relative

precision ±5%max

Units Resistance : Ω

Capacitance : F

V i45 V i44 V i42

V i48

Vo41

Vo46 Vo43

10µ

0.1µ

0.1µ

0.1µ

24k

24K

0.1µ

0.1µ

100k 100k

0.1µ

0.0056µ

0.047µ

330k

0.68µ

0.22µ

0.22µ

4.7µ

4.7µ

0.22µ

0.22µ

0.1µ

0.047µ

0.047µ

0.1µ

0.1µ

0.022µ

0.022µ

41

VOL

42

43

44

45

4647

48

49

50

51

52

53

54

55

56

57

58

59

6061

62

63

64

LPF

MIX

EC

SU

MOS

SFB

-

+

B-TYPE

+9.2dB

MODIFIED

NR DECODER

DUAL-TIME CONSTANT

AND THRESHOLD SWITCHES

LOG

AMPLIFIERS

DIFFERENCE

RECTIFIER

FULL WAVE

65

66

S'

L+R L-R

BPF

67

+9.2dB

NETWORKS

COMBINNING

VCA

BPF

68

AVdd

D/A

A/D

LOGIC

LPF

VREFD

CLK

16kSRAM

MIC

MCU interface

DATA SCK REQ

ATT

SELECTOR2

2

L+R

R C

AUTO

SELECTOR

70

BALANCE

CONTROL

L

CENTER MODE

VCA

Lin

71

72

SERVO

Rin

73

L C R

69

S'

-9.2dB

2

L-R

SELECTOR3

+/-

M

+ -

­M

+

SELECTOR1

VREFA

AVcc

74

75

VREF

77

76

SEQUENCER

IREF

78

NOISE

79

DVdd

+

80

AVss

DVss

AGND

-

VOL

VOL

LO3

LO2

LO1

CNT

TEST

MIC in

ST S

C

CT

RL

REQ

SCK

DATA

24

23

2

1

S21

S21

1

21 22

2

20

19

16 17 18

14 15

1k

1M

4MHz

2k

2

1

2k

2

1

2k

2

1

16 17

15

14

12 13

11

1µ

10

10k

1µ

10k

9

0.1µ

Sout

7 8

6

Cout

5

3 4

Rout

2

Lout

10µ

10µ

10µ

10µ

10µ

10µ

1

47µ

V i12

V i10

27p

S18

S18

DVdd

Vo5Vo4

Vo3

Vo2

+5V

Vo7

Vo6

AGND(5V)

DGND(5V)

20

19

18

Vo22

Vi21

Vo20

Vo19

Vo18

0.1µ

680p

47k

15k

0.1µ

0.1µ

680p

47k15k

0.1µ

0.1µ
22k

10µ

V i72

22µ

4.7M

S74

V i73

22k

S74

AVcc

+9V

10µ

MITSUBISHI

ELECTRIC

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100µ

220µ

100k

10µ

220k

0.0056µ

C-62460-72E

DIGITAL CONTROL SPECIFICATIONS

(1)DATA TIMING

REQ

t7

SCK

t2 t3

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

t8

t4

t1

1

DATA

(note1) SCK is not accept when REQ is high
(Note2)REQ must turn to high after SCK pulse turn to high.

0

Symbol

t1
t2
t3
t4
t5
t6
t7

t8

SCK clock duration
SCK “H” pulse width
SCK “L” pulse width

REQ hold time
DATA setup time
DATA hold time
SCK setup time

REQ “H” pulse width

2 3

Name

t5 t6

4

5 6

7

8

10

9 11

Min Typ Max Unit

2

0.8

0.8

1.6

0.8

0.8

0.8

1.6

µs
µs
µs
µs
µs
µs
µs
µs

(2)DATA FORMAT

SELECTOR2 SELECTOR3

S1 S2 S3 V1 V2 V3

Serial Data Format

DATA ADDRESS

BIT 1 BIT 2 BIT 3 BIT 4 BIT 5BIT 0 BIT 6 BIT 7

NOISE SEQADD/SUB

Cch. TRIMMER

SELECTOR1

LO1

MIX

CENTER MODE

LO3

LO2

Sch. TRIMMER

SFB MOS MIC

V4

MITSUBISHI

ELECTRIC

12

( / )20

BIT 8

BIT 9 BIT 10BIT 11

No use
No use

0 0
0 1

1 0
1 1

C-62460-72E

(3)DECODER

ADDRESS(BIT10,11)=0,0

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

ADD/SUB

mode

ADD

SUB

ADDRESS(BIT10,11)=0,1

LO(LOGIC DATA OUT)

OUTPUT DATA “L”
OUTPUT DATA “H”

BIT0

SELECTOR2

mode

S'

L+R

L-R

MIC

mode

0

1

BIT0 BIT1

mode

OFF

ON

0 0
0 1
1 0

1

NOISE SEQ

BIT1

mode

0

1

1

Open Collector

BIT5

(LO1)

0
1

L
C
R
S

mode

BNR OUT
D OUT

3STEREO/MUTE

BIT6

(LO2)

010

BIT2 BIT3

0
0
1

1

SELECTOR3

BIT7

(LO3)

1

0
1
0
1

BIT2

0
0
1
1

SELECTOR1

mode

PRO LOGIC

BY-PASS

OTHER SUR

L/R MUTE

BIT3

0
1
0
1

BIT4 BIT5

0
0 1
1 0

1

BIT4(MIX)

0
1

CENTER MODE

mode

0

1

WIDE

NORMAL
PHANTOM
OFF

DELAY MIX SWITCH

DMIXSW

OFF

ON

Remarks

Mixing OFF
Mixing ON

BIT6 BIT7

0

0

0

1

1 0
1 1

ADDRESS(BIT10,11)=1,0

Cch. TRIMMER

DATA

0
1

BIT0 BIT1 BIT4

±0dB

-1dB

Volume code

ATT(dB)

±0

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

-11

-12

-13

-14

-15

BIT0(5) BIT1(6) BIT4(9)

0 0 0 0 0
1 0 0 0 0
0 1 0 0 0
1 1 0 0 0
0 0 1 0 0
1 0 1 0 0

0 1 1 0 0
1 1 1 0 0
0 0 0 1 0
1 0 0 1 0

0 1 0 1 0
1 1 0 1 0
0 0 1 1
1 0 1 1 0
0 1 1 1 0
1 1 1 1 0

BIT2 BIT3

±0dB ±0dB

-2dB -4dB -8dB -16dB

BIT2(7) BIT3(8)

±0dB

±0dB

C(S)ch. TRIMMER

0

Sch. TRIMMER

DATA

0
1

ATT(dB)

-16 0 0 0 0 1

-17

-18

-19

-20

-21

-22

-23

-24

-25

-26

-27

-28

-29

-30

-31

BIT0(5) BIT1(6)

BIT5 BIT6 BIT9

±0dB

-1dB -2dB -4dB -8dB -16dB

1 0 0 0 1
0 1 0 0 1

1 1 0 0 1
0 0 1 0 1
1 0 1 0 1
0 1 1 0 1
1 1 1 0 1

0 0 0 1 1
1 0 0 1 1
0 1 0 1 1
1 1 0 1 1
0 0 1 1 1
1 0 1 1 1
0 1 1 1 1

1 1 1 1 1

±0dB ±0dB

BIT2(7) BIT3(8)

BIT7 BIT8

±0dB

BIT4(9)

±0dB

MITSUBISHI

ELECTRIC

13

( / )20

C-62460-72E

(4)DELAY

ADDRESS(BIT10,11)=1,1

DELAY TIME CONTROL

BIT0 BIT1

(S1)

0
0 0 1
0 1 0

0 1 1
1 0 0

1 0 1
1 1 0

1 1 1

BIT7(SFB)

(In surround mode only)

MODE SELECTOR

BIT8(MOS)

(S2) (S3)

0 0

FEEDBACK SWITCH

0
1

0
1

BIT2

SFB SW

OFF

ON

MODESEL

SU line
EC line

DELAY TIME

(Sampling frequency)

ms

15.4
(1MHz)

20.0

ms

(667kHz)

28.6

ms

(500kHz)

41.0

ms

(400kHz)

49.2

ms

(333kHz)

147.5 ms
(111.1kHz)

196.6ms
(83.3kHz)

Delay off mode (clock off)

Remarks

Feedback OFF
Feedback ON

DelayLPF

(Cut-off frequency)

7.0kHz

3.0kHz

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

VOLUME CONTROL

BIT3

(V1)

1
1
1

1
1
1

1
1
0

0
0

0
0

0
0
0

BIT4

(V2) (V3)

BIT5

BIT6
(V4)

1 1 1
1

1
1

0
0

0
0

1
1
1
1
0
0
0
0

1 0
0

0
1 1
1

0 1
0 0
1 1
1 0

0 1
0 0

1 1
1 0

0 1
0 0

VOL attenuation

1
0

0

+3dB

0dB

-2dB

-3dB

-4dB

-6dB

-8dB

-9dB

-10dB

-12dB

-15dB

-∞

-∞

-∞

-∞

-∞

MICROPHONE MIXING SWITCH

BIT9(MIC)

0
1

MICMIXSW

OFF

ON

Remarks

Mic mixing OFF

Mic mixing ON

(Note)Settings in power-on

When power is turned on, data is setting in under table by power on reset circuit.

DECODER

Mode Settings

ADD/SUB
NOISE SEQ
SELECTOR1
CENTER MODE

SELECTOR2
SELECTOR3

LO(LOGIC OUT)
Cch.TRIMMER

Sch.TRIMMER

ADD
OFF

PRO LOGIC

WIDE

S'

BNR OUT

“L”

0dB,ATT(-)
0dB,ATT(-)

DELAY

Mode Settings
DELAY TIME CONTROL
VOLUME CONTROL -∞
FEEDBACK SWITCH
MODE SELECTOR
DELAY MIX SWITCH

MICROPHONE MIXING SWITCH

MITSUBISHI

ELECTRIC

14

( / )20

20.0ms

OFF

SU line

OFF
OFF

C-62460-72E

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

NOTE

INPUT

DELAY

DIGITAL

MIC MIX

FEEDBACK

MODE

Delay

ADD/SUB

CENTER

MIX SW

MODE

WIDE

S'

OFF

OFF

SU

OFF

NORMAL

SWITCH CONDITION

3

SELECTOR

1 2

BNR

OUT

S'

PLO

3STEREO

LOGIC

PHANTOM

Feedback

level

can be

ON

SUB

L-R

changed

by output

port

2

(L-R)

OFF

OFF

PHANTOM

DOUT

OTHER

control(see

block

diagram)

2

(L+R)

OFF

SU

ADD

L+R

SUR

ON

ADD

WIDE

NORMAL

BNROUT

3STEREO

S'

L+R

OFF

SUB

PHANTOM

DOUT

L-R

MIC

ON

OFF

EC

ON

ADD

OFF

3STEREO

MIC

BY

PASS

S'OFFOFF

SUOFFADD

OFF3STEREO

S'

BY

PASS

0dB

-2dB

Delay

VOL

Sch

Trimmer

VOL

OFF

1dB/step

0~-31dB

(0dB)

+3dB

VOL ATT

-3dB

VOLUME LEVEL

Cch

Trimmer

1dB/step

0~-31dB

td=15.4ms,

20.0ms,

28.6ms

*Pro Logic

decoder function

is alive.

For example

*Delay time

can be set to

5position(15.4,

20.0,28.6,41.0

49.2mSec).

DIGITAL DELAY

td=20ms

SUB-

MODE

FUNCTION MODE (EXAMPLE)

MODE

WIDE

NORMAL

PHANTOM

DISCO

DOLBY PRO LOGIC

td=49.2ms

Hall

-4dB

-6dB

-8dB

-9dB

C/S trimmer can

be available.

5step delay time

(BW=7kHz,fck=4MHz)

td=28.6ms

LIVE

Option

DIGITAL SPACE SURROUND

-10dB

-12dB

-15dB

td=147.5ms

SHORT

ECHO

-∞

BW=3KHz

td=196.6ms

LONG

ECHO

KARAOKE/ECHO

-∞

-31dB

td=20.0ms

BY-PASS

BY-PASS

MITSUBISHI

ELECTRIC

15

( / )20

C-62460-72E

14.FUNCTION

Block Diagram

Lin

Rin

(L+R)

2

(L-R)

2

MIC

VREFA

AVcc
(+9V)

AGND

SU

FEEDBACK

S'

MIC

MOS

EC

INPUT

BALANCE

SELECTOR2

NOISE
SEQUENCER

SELECTOR4

Digital Deley

ADAPTIVE
MATRIX

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

SELECTOR1

BY-PASS

PLOLOGIC

OTHER
MUTE

L

CENTER
MODE

MIC
MIX

C

VOL

R

CONTROL

NORMAL

PHANTOM

Modifide BNR

WIDE

OFF

-

+

3STEREO/MUTE

ADD/SUB

SELECTOR3

BNR
OUT

DOUT

MCU Interface

C.Trimmer
(0~-31dB)

S.Trimmer

(0~-31dB)

Delay Mix SW

+

-

Lout

Rout

Cout

CT

Sout

Dout

LO1
LO2

LO3

GND

Echo filter

Surround filter

Block name

INPUT
BALANCE

NOISE
SEQUENCER

ADAPTIVE
MATRIX

CENTER MODE
CONTROL

7kHz

LPF

AVDD

(+5V)

4MHz

DATASCKREQ

VDD

Function

Correction of a level error between the input Lch and
Rch for optimum decorder performance

A noise sequencer circuit for ajustment of output level

Determine the direction and relative magnitude of
encoded soundfield.

Select 4 - center mode position
(WIDE,NORMAL,PHANTOM,OFF)

C.Trimmer

S.Trimmer

This is the level ajustment volum of Cch and Sch.
( 0~ -30 dB : 1dB/step )

MITSUBISHI

ELECTRIC

16

( / )20

C-62460-72E

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

Block name

Modifide BNR

ADD/SUB

SELECTOR1

SELECTOR2

SELECTOR3

Function

This block restores the signal to its original spectrum
while reducing noise and certain crosstalk signals in a
final stage of the surround chain.

Select a positive phase signal or a negative phase
signal with DIGITAL SPACE SURROUND MODE.

This is a selective switch to select the output signal of
Lout and Rout from BY-PASS,PRO LOGIC,OTHER
SUR and MUTE .

This is a selective switch to select the output signal
of Sout from S',L+R,L-R and MIC.

This is a selective switch to select the output signal
of Sout from BNRout,Dout and 3STEREO/MUTE.

SELECTOR4

Digital Deley

FEEDBACK

MODE SEL(MOS)

VOL

MIC MIX

This is a switch to connect a noise sequencer output
to ADAPTIVE MATRIX stage for level ajust­ment.

Make 7 kinds of delay signal s.(15.4msec~196.6msec)
The delay function and CLK signal stop at DELAY
OFF MODE.
This mode is for suppress bad effect of digital
noize.

This is a switch to select feedback mode(ON/OFF) for
SURROUND MODE .

This is a switch to select a feedback signal from
surround signal and echo signal.

Control the ATT level of delay signal from 3dB to -∞
(12-step)

This is a switch to mix miclophone signal to a main
signal (Lch,Rch)

Delay Mix SW

This is a switch to select output or not a mixed signal
to DOUT pin.

MITSUBISHI

ELECTRIC

( / )20

17

C-62460-72E

AUTO MUTE FUNCTION

The IC carries out auto mute function at the time of powerring up, delay time setting
change, and cancelling delay off mode, in order to suppress shock noise that the
digital delay may produce.

•At power -on

*Transient noise common with power up occurs.

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

RESET TIME

Power up

•At delay time setting change

•At canceling delay off mode

Freed from
resettung

Delay signal before change Delay signal after change

Instruction
to change
delay time

MUTE TIME

Freed from muting

Internal delay time
setting

MUTE TIME

Freed from muting

Internal delay
time change

MUTE TIME

Canceling delay
off mode

Mute time changes depending on set (or preset) delay time.

DELAY TIME

15.4~49.2 ms

147.5 , 196.6 ms

MITSUBISHI

18

( / )20

MUTE TIME

ELECTRIC

Freed from muting

123 ms

492 ms

C-62460-72E

C40

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

+5V

C39

40

39

C36

C38

37

38

C35

35

36

C32

C34

33

34

C30

C29

30

31

32

C27

C26

28

29

27

AVdd

C25

25

26

C48

41

RA45

C45

R45

RA44

C44

C41

R44

VOL

42

43

44

45

MIX

SFB

LPF

EC

SU

MOS

4647

R48

R47

C47

C49

C50

R51

C51

C52

C53

C54

C55

C56

C57

C58

C59

C60

48

49

50

51

52

53

54

55

56

57

58

59

6061

-

+

B-TYPE

+9.2dB

MODIFIED

NR DECODER

DUAL-TIME CONSTANT

AND THRESHOLD SWITCHES

LOG

AMPLIFIERS

DIFFERENCE

S'

+9.2dB

NETWORKS

VCA

C61

62

C62

C63

C64

63

RECTIFIER

FULL WAVE

64

65

L+R L-R

BPF

66

68

67

R67

R66

C67

C70

C68

R68RA68

C65

C66

RA66

APPLICATION EXAMPLE

D/A

COMBINNING

L C R

BPF

69

C69

R69

C71

AUTO

SELECTOR

70

BALANCE

A/D

LOGIC

16kSRAM

MIC

SELECTOR2

R C

CONTROL

L

CENTER MODE

VCA

71

72

R72

C72

2

L+R

SERVO

73

C74

C73

R73

2

74

L-R

ATT

-9.2dB

R74

LPF

AVcc

75

S'

+ -

-

+

+/-

C75

SELECTOR3

M

M

VREFA

76

C77

77

VREF

SELECTOR1

IREF

78

R78

VREFD

CLK

MCU interface

DATA SCK REQ

NOISE

SEQUENCER

79

C79

R80

AVdd

DVdd

+

80

AVss

DVss

AGND

-

VOL

VOL

TEST

ST S

C

CT

RL

C80

CNT

24

23

R22

R21

21 22

C22

DGND

4MHz

C21

20

LO3

LO2

19

LO1

(EXAMPLE) FEEDBACK LEVEL CONTROL

17 18

16

µ-COM

15

14

+5V

DVdd

12 13

C12

MIC in

11

10

R9

R6

9

SURROUND

C6

LEVEL

Sout

8

C8

7

6

5

Cout

C5

4

3

C3

2

C2

Rout

Lout

1

C1

Lin

Rin

MITSUBISHI

ELECTRIC

19

( / )20

AVcc

+9V

C-62460-72E

OPTIONAL PARTS LIST

MITSUBISHI SOUND PROCESSORS

M62460FP

“Super Single Chip” Surround Processor

with Dolby Pro Logic Decoder

Parts No. Values

C1
C2
C3
C5
C6

C8
C12
C21
C22
C25
C26
C27
C29
C30
C32
C34
C35
C36
C38
C39
C40
C41
C44
C45
C47
C48
C49
C50
C51
C52
C53
C54
C55
C56
C57
C58
C59
C60
C61
C62
C63
C64

47
10
10
10
10

0.1 10%
1

27
27

100

22

1

0.01

0.0018

0.068

0.1

0.1

0.068

0.01

0.0018

0.1

0.1

1200

470
820

0.1

0.0056

0.047

0.68

0.22

4.7 20%

4.7

0.1

0.047 5%

0.047 5%

0.1

0.1 20%

0.022 5%

0.022 5%

Unit

µF
µF
µF
µF

µF

µF

µF

pF

pF
µF
µF
µF
µF

µF

µF

µF
µF

µF
µF
µF
µF
µF

pF
pF

pF
µF
µF
µF
µF

µF

µF

µF
µF

µF
µF
µF
µF
µF
µF
µF

µF
µF

Tol.

5%
5%
5%
5%
5%
5%
5%
5%
5%

10%

5%

5%
10%
10%
10%0.22

20%
10%0.22
10%0.22
20%

20%

Parts No.

C65
C66
C67
C68
C69
C70
C71
C72
C73
C74
C75
C77
C79

C80

R6

R9
R21
R22

RA44
RA45

R44
R45
R47
R48
R51
R66

RA66

R67
R68

RA68

R69
R72
R73
R74
R78
R80

Values

0.1

680

0.1

680

0.1 5%

0.1 5%

0.1 5%
10

10
22

100

220
10 10%

0.0056

10
20

1
1

51

51
Vol
Vol

24

24

330

47

15

7.5 KΩ

47

15 KΩ 5%

7.5 KΩ 5%

22

22 KΩ

4.7

100

220

Unit

µF
pF

µF

pF
µF
µF
µF
µF

µF

µF

µF

µF
µF
µF

KΩ
KΩ

MΩ

KΩ
KΩ
KΩ

KΩ
KΩ
KΩ
KΩ
KΩ

KΩ

KΩ

MΩ

KΩ

KΩ

20%

Tol.

5%
5%
5%

20%

5%

5%
5%

10%

5%
5%
5%
5%

10%

1%

5%

MITSUBISHI

ELECTRIC

20

( / )20

C-62460-72E