Datasheet M62462FP Datasheet (Mitsubishi)

MITSUBISHI SOUND PROCESSORS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

Dolby Pro Logic Surround Decoder

Description

The M62462FP is a Single Chip Dolby Pro Logic
Surround Decoder.This LSI has all functions necessary
for Dolby Pro Logic Surround.

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

Includes all functions necessary for Dolby Pro Logic Surround

-Adaptive Matrix

-Input Auto-Balance

-Noise Sequencer

-Center Mode Control ON/OFF, WIDE/NORMAL/PHANTOM

-Modified Dolby B type Noise Reduction

-4 channel (Lch/Rch/Cch/Sch) / 3 channel (Lch/Rch/Cch)

-Digital delay Delay time:15.4 to 51.2msec
Cch/Sch Master Volume 0 to -84dB/1dB step
3-lines MCU control
Current control oscillation circuit for system clock

M62462FP

Outline

Outline 64P6N

0.8mm pich QFP
(14.0mm*14.0mm*2.8mm)

System Configuration

Lch IN

Rch IN

Delay IN

L+R

L-R

Input
Auto­Balance
Control

S'

Noise

2

Sequencer

Digital Delay

Adaptive
Matrix

7kHz
LPF

L
R

C

Modified
Dolby
B-NR

S

DATA SCK REQ

MITSUBISHI

ELECTRIC

13

1

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M62462FP

Center/
operating
mode
control

MCU Interface

Center
Master

Volume

Surround

Master
Volume

Lch

OUT
Rch

OUT

Cch

OUT

Sch
OUT

Master
Volume

Lch

Rch

CENTER

SURROUND

MITSUBISHI SOUND PROCESSORS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

FIG.1 Pin Configuration

NGC2

LOUT

ROUT

CVOLOUT

CVOLIN

COUT

SOUT

SVOLIN

SVOLOUT

CMC

S'OUT

AGND

DIN

DVdd

DATA

SCK
REQ

NGC1

64

L

1

R

2

C

3 4

5

6

7 8

S

9

S'

10

AGND

11

12 13

DVdd

14 15

16

DATA SCK

REQ

DVss

17

DVss

NGC3

62

63

SEQUENCER

NOISE

VOL MCU INTERFACE

VOL

TEST

18

19

DSEL OUT

TEST

VREF

IREF

60

61

IREF VREF

1

2

3
1

2

3

CLK

LPF

21

20

LPF1 IN1

LPF1 IN2

AVcc

59

AVcc

SW1

SW2

1

3

SW3

22

LPF1 OUT

RIN

58

2

L+R

23

ADINT IN

Dolby Pro Logic Surround Decoder

LIN

RT

LT

56

57

SERVO

L-R

2

3

4

LOGIC

A/D D/A

24

ADINT OUT

55

VCA

L

CONTROL

R C

SW4

2

1

26

25

ADCONT

DACONT

RBPF1

54

SELECTER

BALANCE

AUTO

CENTER MODE

27

DAINT IN

RBPF2

53

28

DAINT OUT

LBPF1

52

L+R L-R

L
C R

S'

F.B.
VOL

10Kbit
SRAM

29

LPF2 IN1

LBPF2

51

BPF BPF

VCA

LPF

LPF2 IN2

M62462FP

RLC8

RLC6

50

49

FULL WAVE

RECTIFIER

RLC3

4748

RLC7
RLC4

DIFFERENCE

NETWORKS

COMBINNING

30

31

LPF2 OUT

AMPLIFIERS

AND THRESHOLD SWITCHES

NR DECODER

4546

LOG

DUAL-TIME CONSTANT

MODIFIED

B-TYPE

32

44

43

42

41

40

39

38

37

36

35

34

33

RLC1
RLC2

RLC5
PSC4
PSC1

PSC5
PSC2

PSC6
PSC3
DBC3

DBC2
DBC1

BNR IN

FBIN

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2

MITSUBISHI SOUND PROCESSORS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

Fig.2 Block Diagram

Rout

3

2

MUTE

PROLOGIC

CENTER

MODE

CONTROL

R

1

SW1

BY-PASS

Lout

3

2

MUTE

PROLOGIC

1

BY-PASS

L

SW2

WIDE

NORMAL

C

MASTER

OFF

PHANTOM

VOLUME

Modified

M62462FP

Dolby Pro Logic Surround Decoder

Sout

Cout

MASTER

VOLUME

MCU

INTERFACE

1

3

2

SW3

BNR

LPF

DATA

SCKREQ

NOISE

SEQUENCER

ADAPTIVE

MATRIX

SELECTOR

AUTO-BALANCE
INPUT

S'

D/A

LOGIC

10Kbit SRAM

DIGITAL DELAY

SW4

L-R

2

L+R

A/D

LPF

1

4

3

2

F.B.

VOL

Lin

Rin

MITSUBISHI

ELECTRIC

3

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Din

13

MITSUBISHI SOUND PROCESSORS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

7.FUNCTIONAL DESCRIPTION

FUNCTION DESCRIPTION

Fundamental function for

1

Dolby Pro Logic Surround
Decoder

2

RAM for Digital Delay 10K-bit RAM

-Adaptive Matrix

-Input Auto-Balance

-Noise Sequencer

-Center Mode Control
ON/OFF
WIDE/NORMAL/PHANTOM

-Modified Dolby B type Noise Reduction

-4ch(L,R,C,S), 3ch(L,R,C) Mode Switch

M62462FP

Dolby Pro Logic Surround Decoder

3 Surround Delay Time

4

Circuit for Space Surround

5 Feedback Volume

Cch/Sch Master Volume6

7

Bypass Switch

Output Mute8

MCU Interface

9

15.4, 20.5, 25.6, 29.2msec
(for Dolby Pro Logic Surround)

51.2msec (for Space Surround)
Digital delay circuit can be used for

Space Surround such as a Disco, Hall or Live.

Delay Signal Feedback Volume

-3 to -21 dB/3dB step, and -

0 to -84dB/1dB step, and -

Bypass the decode circuit

Mute the Lch and Rch output

Controlled by 3-lines serial data from MCU
Including the Chip Address (2 bit)

10 Current control oscillation circuit

Including the oscillation circuit without
external parts.

MITSUBISHI

ELECTRIC

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134

MITSUBISHI SOUND PROCESSORS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

9.ABSOLUTE MAXIMUM RATINGS

(Ta=25 C Unless otherwise noted)

Symbol

Parameter Conditions

Vcc

Supply Voltage

VDD

Topr
Tstg

Operating
Temperature
Storage
Temperature

10.RECOMMENDED OPERATING CONDITION

Dolby Pro Logic Surround Decoder

M62462FP

Ratings

10.5

6.5

-20 to +75

-40 to +125

Unit

V

V
C

C

Symbol

Vcc

VDD

Parameter

Supply Voltage

Condition

Limits

Min Typ Max

8 10

4.5 5.5

9
5

Units

V

V

MITSUBISHI

ELECTRIC

13

5

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MITSUBISHI SOUND PROCESSORS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

Dolby Pro Logic Surround Decoder

M62462FP

11.ELECTRICAL CHARACTERISTICS

(Ta=25 C,Vcc=9V,VDD=5V ,Cch volume=0dB,at C-OUT 0dBd=300mVrms,f=1kHz unless
otherwise noted)

Limits

Symbol Parameter Units

Total

Icc
IDD

Vref Reference voltage

Auto-Balance

CPR Capture range
CER Error collection

Adaptive Matrix

VoL

MR
HRAM Head room

THDAM

SNAM

Noise Sequencer

Vno Output noise level
Vno

Circuit current
Circuit current

Output level accuracy relative to Cch

Matrix rejection

Total harmonic distortion

S/N ratio

Noise level accuracy relative to Cch

Test conditions

No signal
No signal
No signal

L, R, S'ch output
L, R, C, S'ch output

L, R, C, S'output
L, R, C, S'ch output

Rg=0Ω,weighted CCIR/ARM

L, R, S'ch output

4ch mode

4ch mode

Min Typ Max

25
25

4.0

±5
±4

0

40
17

0.05
80

-12.5
0

mA
mA

V

dB
dB

dB
dB
dB

%

dB

dB
dB

Modified B Noise Reduction

VGNR
DEC1

DEC2
DEC3

DEC4

THDNR

HRNR Head room THD=1%
SNNR

C,S ch Master Volume

ATTmax
VOLS

Digital Delay

Gv 0 dB

THDD

No Output noise voltage

Line(at Dolby Pro Logic is off)

THDLN
SNLN S/N ratio L,Rch output 100

Gain between input and
output

Decode character 1
Decode character 2

Decode character 3
Decode character 4

Total harmonic distortion

S/N ratio

Maximum attenuator

Gain between input and
output

Total harmonic distortion

Total harmonic distortion

(Sch Volume=0dB, 0dB reference is 300mVrms/100Hz at S-Out)

Vin=0dBd,f=100Hz

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=0Ω, weighted CCIR/ARM

Td=20msec,Vin=0dBd
Td=20msec,Vi=0Vrms,JIS-A

L,Rch output

-9.2

-0.1

-1.5

-3.4

-5.3

0.07
17
78

-90ATT=-∞

1.0

0.3 %
92

0.002

dB

dB

%
dB
dB

dB
dBVolume step

dBV

%

dB

MITSUBISHI

ELECTRIC

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MITSUBISHI SOUND PROCESSORS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

12.SERIAL DATA CONTROL FORMAT
Data Input Format

DATA is read at the rising edge of SCK, and loaded last 16 bits at the
rising edge of REQ.

DATA D1 D2 D3 D4 D5

SCK
REQ

D0 D1

L

H

D0

D6

D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13

Pro
Logic
Mode

Center

Mode

Auto-

Balance

Surround

set

to

"L"

Space

Mode

L

H

L

Mode

Set

Delay

Time

Noise

Sequencer

M62462FP

Dolby Pro Logic Surround Decoder

D7 D8 D9 D10 D11 D12 D13 D14 D15

D14 D15

Sch Volume

Cch Volume

Feedback

Volume

Chip

Address

H

Control condition

Control Mode

Mode Set1

Pro Logic Mode

2

3

Delay Time

Noise Sequencer

4

5

Center Mode

6
7 Space Surround Mode

8

Test Mode

Contents

Normal Stereo / Dolby Pro Logic /
Space Surround / Mute

4ch Pro Logic / 3ch stereo

15.4, 20.5, 25.6, 29.2, 51.2 msec
ON / OFF

Lch / Rch / Cch / Sch
Wide / Normal / Phantom / OFF

Input Auto-Balance ON / OFFAuto-Balance
Input to Delay L-R / (L+R)/2 / Din(External)

BNR ON / OFF

-3 to -21dB / 3dB step and -Feedback Volume

9

Cch/Sch Volume

0 to -84dB / 1dB step and ­Input data effecte or notChip Address10

MITSUBISHI

ELECTRIC

13

7

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MITSUBISHI SOUND PROCESSORS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

Set Conditions

Mode Setting (D0="L",D1="L")

D2

H L
H H

D3

L
L

L
H

Normal stereo (bypass)
Dolby Pro Logic Surround

Space surround
Output Mute

Pro Logic Mode Setting(D0="L",D1="L")

D4

Condition

Condition

M62462FP

Dolby Pro Logic Surround Decoder

Switch

SW1 SW2 SW4

1

2

1
3

SW3

1

2

1
3

4

1

2to4

4

L

H

4ch Pro Logic

3ch Stereo

Center Mode Setting (D0="L",D1="L")

D5 D6

L L

L

H

H L
H H

Condition

Wide

Normal
Phantom

OFF

Delay Time Setting (D0="L,D1="H")

D2 D3

L

L L

D4

Condition

15.4msec

1

3

Sampling frequency

500kHz

L
L

L

L

H

H L
H H

20.5msec

25.6msec

29.2msec

500kHz
400kHz

333kHz

L LH 51.2msec 200kHz

MITSUBISHI

ELECTRIC

13

8

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MITSUBISHI SOUND PROCESSORS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

Auto-Balance Setting (D0="L",D1="H")

D5

L

Auto-Balance OFF

H

Noise Sequencer (D0="H",D1="L")

D2 D3

L

- ­L

L H

H

H L

Condition

Auto-Balance ON

D4

Noise Sequencer OFF

L

Noise Sequencer ON

M62462FP

Dolby Pro Logic Surround Decoder

Condition

Lch
Rch

Cch

H H Sch

Space Surround Mode (D0="H",D1="L")

D5 D6

L
L

H
H

L ­H

L -

H -

- L-

- H-

D7

-

Delay input

BNR OFF
BNR ON

Condition

Din(External)

L-R
(L+R)/2

Switch

SW3 SW4

- 2

-

-

2

1

3
4

-

-

MITSUBISHI

ELECTRIC

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9

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MITSUBISHI SOUND PROCESSORS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

Feedback Volume

D8 D9

L
L

L
L

H
H

H
H

L
L
H

H
L
L

H
H

D10

L

H

L
H

L

H

L
H

Volume Level

-3dB

-6dB

-9dB

-12dB

-15dB

-18dB

-21dB

-

M62462FP

Dolby Pro Logic Surround Decoder

Chip Address

D14 D15

L H

Others

Data Read

Enable

Unable

MITSUBISHI

ELECTRIC

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MITSUBISHI SOUND PROCESSORS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

Sch Volume Setting (D0="L",D1="L")
Cch Volume Setting (D0="L",D1="H")

Volume Level

0 dB L L L L L

-2 dB L L L L H

-4 dB L L L H L

-6 dB L L L H H

-8 dB L L H L L

-10 dB L L H L H

-12 dB L L H H L

-14 dB L L H H H

-16 dB L H L L L

-18 dB L H L L H

-20 dB L H L H L

-22 dB L H L H H

-24 dB L H H L L

-26 dB L H H L H

-28 dB L H H H L

-30 dB L H H H H

-32 dB H L L L L

-34 dB H L L L H

-36 dB H L L H L

-40 dB H L L H H

-44 dB H L H L L

-48 dB H L H L H

-52 dB H L H H L

-56 dB H L H H H

-60 dB H H L L L

-64 dB H H L L H

-68 dB H H L H L

-72 dB H H L H H

-76 dB H H H L L

-80 dB H H H L H

-84 dB H H H H L

- H H H H H

D7 D8 D9 D10 D11

M62462FP

Dolby Pro Logic Surround Decoder

Volume
Level

0 dB L L

-1 dB L H

-2 dB H L

-3 dB H H

D12

D13

MITSUBISHI

ELECTRIC

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MITSUBISHI SOUND PROCESSORS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

13.APPLICATION EXAMPLE

C34

C35

C36

C37

C38

C39

C40

C41

C42

C43

C44

C45

C46

C47

C48

C33

1µ

R36

5600p

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

C32

1µ

33

34

35

36

37

38

39

40

41

42

43

44

4546

4748

C30

1000p

30

31

32

LPF

B-TYPE

MODIFIED

NR DECODER

DUAL-TIME CONSTANT

AND THRESHOLD SWITCHES

S'

COMBINNING

NETWORKS

VCA

LOG

AMPLIFIERS

DIFFERENCE

L+R L-R

RECTIFIER

FULL WAVE

BPF BPF

C29

4700p

29

VOL
F.B.

SRAM
10Kbit

C R
L

C27

0.068µ

28

0.1µ
26

27

D/A

SW4

CONTROL

CENTER MODE

AUTO

BALANCE

SELECTER

C25C26

0.1µ
25

1

2 3

R C
L

VCA

M62462FP

Dolby Pro Logic Surround Decoder

0.068µ

24

A/D

LOGIC

4

L-R

SERVO

C21C23

1000p

23

22

2

L+R

3

2

1

AVcc

4700p

21

SW3

SW2

2

2

SW1

C20

LPF

3

1
3

1

VREF

20

C19

1µ

CLK

IREF

19

18

VOL

VOL MCU interface

NOISE

SEQUENCER

TEST

17

DVss

REQ

DATA SCK

DVdd

AGND

S'

S

C

R

L

16

MCU

14 15

C13

0.1µ

12 13

11

10

9

C9

7 8

6

5

3 4

2

1

C2

C1

0.1µ

C6

10µ

C4

10µ

10µ

10µ

C12

C8

C3

10µ

10µ

10µ

DVdd

+5V

Din

Sout

Cout

Lout

Rout

C49 C50

0.022µ

49

0.1µ

0.1µ
C52

0.1µ

C55

53

52

7.5k

680p

47k15k

R52

R53RA53

C53

51

50

47k

680p

R51

C51

15k

RA51

0.1µ
C54

0.1µ
C56

55

54

7.5k
R54

56

C57

10µ 10µ

57

Lin

C58

58

Rin

59

C60 R61

220µ

C59

100µ

+9V

AVcc

60

100k

62

61

C62

10µ

63

R63 C63
220k

5600p

64

C64

47µ

MITSUBISHI

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1312

MITSUBISHI SOUND PROCESSORS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

14.EXTERNAL PARTS LIST

Parts No. Values

C1
C2

C3
C4
C6
C8
C9

C12
C13

C19
C20
C21
C23
C25

C26
C27

C29
C30

C32
C33 µF1

C34
C35

C36
C37
C38
C39
C40

C41
C42
C43
C44
C45
C46

C47
C48
C49

10
10
10
10 µF

10

10

0.1
10

0.1
1 µF

4700

1000

0.068

0.1

0.1

0.068
4700

1000

1

5600 pF

0.68 10%

0.22

4.7

4.7 20%

0.1 20%µF

0.047

0.047

0.1 20%

0.1 20%

0.022 µF 5%

0.022 µF 5%

Unit

µF
µF
µF

µF
µF
µF
µF

µF

pF
pF
µF

µF
µF
µF
pF
pF

µF

µF
µF
pF

pF
µF 20%
µF
µF
µF

µF 5%
µF
µF
µF

Tol.

10%

5%
5%

5%
5%

5%
5%

5%
5%

5%
5%0.047

10%0.22
10%

10%0.22
10%0.22

5%

M62462FP

Dolby Pro Logic Surround Decoder

Parts No.

C50
C51

C52
C53
C54
C55
C56

C57
C58
C59
C60
C62

C63
C64

R36
R51

RA51

R52
R53

RA53

R54
R61

R63

Values

0.1

680

0.1 µF 5%
680

0.1

0.1

0.1 µF 5%
10

10

100

220
10

6800 pF

47 µF

330 kΩ

47
15 5%

7.5 5%
47 5%
15 5%

7.5 5%

100

220 5%

Unit

pF 5%

pF
µF
µF

µF
µF
µF
µF

µF

kΩ
kΩ

kΩ

kΩ
kΩ

kΩ
kΩ

kΩ

Tol.

20%µF

5%

5%

5%

10%

5%

10%

5%

1%

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