Datasheet M62465FP Datasheet (Mitsubishi)

ELECTRIC

MITSUBISHI

PRELIMINARY

Control

Sequencer

Adaptive

control

Trim

Trim

LPF-IN

LPF-OUT

NR-IN

L-R2L+R

2

Notice ; This is not a final specification.
some parametric limits are subject to change.

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

DESCRIPTION

Outline

The M62465FP is a single chip LSI supporting the Dolby Prolgic
surround.This LSI contains all functions necessary for Dolby Pro Logic
surround. In addition,it has Digtal 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)

Outline 80P6N

0.8mm pich QFP
(20.0mm×14.0mm×2.8mm)

Upper compatible for M62460FP and less external parts than M62460FP.
Includes all functions requires for Dolby Pro Logic Surround.

•Adaptive Matrix.

•Noise Sequencer by digital noise source and switched capacitor filter.

•Center Mode Control(Wide/Normal/PHANTOM/OFF).

•Modified Dolby B Type Noise Reduction.

•4ch/3ch Stereo Selectable.

•Digital Delay: 15.4, 20, 28.6ms for Dolby Pro Logic Surround.
C/Sch Trimmer: 0 to -31dB/1dB Step.
Digital Space Surround Mode: Disco/Hall/Live mode and 5 delay time positions.
Digital Echo function for KARAOKE: (Short echo) Delay time=147.5ms, (Long echo) Delay
time=196.6ms.
BY-PASS Mode: Input signal through output.

System Configuration

Lch IN

Rch IN

MIC IN

Input
Auto­Balance

S

Digital Noise

Digital Delay

Matrix

7kHz
LPF

Modified
Dolby
B-NR

( / )

1

L
R

C

Center/
operating
mode

S

MCU Interface

SCK

DATA

24

Center

Surround

REQ

L

R

C

S

Master
Volume
Control

Lch

Rch

CENTER

SURROUND

ELECTRIC

MITSUBISHI

PRELIMINARY

Notice ; This is not a final specification.
some parametric limits are subject to change.

PIN CONFIGURATION

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

FILTER

LOUT

ROUT

CT

COUT

ST

SOUT

CMC

SMRO

SMRI

AGND

MIC IN

DVdd

TEST CNT

DATA

SCK

REQ

RLC8
RLC3
RLC7
RLC4
RLC1

RLC2
RLC5
PSC4
PSC1
PSC5
PSC2
PSC6
PSC3
DBC3
DBC2
DBC1

LPIN
LO1
LO2
LO3

XIN

XOUT

DVss

AVss

(Note) The function of pin No. 1,79,80 is different from that of M62460FP.

2

( / )

24

DBIN

S' OUT

FBIN SU

FBIN EC

DELAY SIG OUT

DELAY SIG IN

VOL OUT

ELECTRIC

MITSUBISHI

PRELIMINARY

Digital NOISE

SEQUENCER

L+R L-R

COMBINNING

NETWORKS

IREF

VREF

SELECTOR1

MOS

SFB

MIX

MIC

L+R2L-R2SU

EC

1/2 Vcc

Notice ; This is not a final specification.
some parametric limits are subject to change.

BLOCK DIAGRAM

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

FILTER

LOUT

ROUT

CT

COUT

ST

SOUT

CMC

SMRO

SMRI

AGND

MIC IN

DVdd

TEST CNT

DATA

SCK

REQ

LO1
LO2

16kSRAM

RLC8
RLC3
RLC7
RLC4
RLC1
RLC2

VCA

RLC5
PSC4
PSC1
PSC5
PSC2
PSC6
PSC3
DBC3
DBC2
DBC1
LPIN
DBIN

S' OUT

LO3

XIN

XOUT

DVss
AVss

FBIN SU

LPF

LOGIC

A/D

D/A

LPF

FBIN EC
DELAY SIG OUT
DELAY SIG IN
VOL OUT

(Note) The function of pin No. 1,79,80 is different from that of M62460FP.

( / )

3

24

ELECTRIC

MITSUBISHI

PRELIMINARY

with external resistance.

when the operation

Discription of pin

Notice ; This is not a final specification.
some parametric limits are subject to change.

Discription of pin

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

No. Symbol

2

3

4

5

6

LOUT

ROUT

CT

COUT

ST Sch output

Funtion Equivalent circuit

Lch output

Rch output

Cch output

Cch output

Voltage

Direct output R-/ L­channel when the operation
mode is BY-PASS.

4V

When the mode is 4channel,
they output Dolby prologic
R-/ L-channel signals.

No output any signals

mode is center mode is
OFF or set to PHANTOM.

4V

COUT is output from
C.Trimmer.

This pin output surrund
signals.Output is selected
from BNRout,Dout
No output signal when the
operation mode is

4V

3STEREO/MUTE.

Vcc

Vcc

Vcc

2 3

4 5

6

7

7

9

10

SOUT Sch output

SMRO

SMRI

amplifier
output

amplifier
input

SOUT is output from
S.Trimmer.

This is a amplifier to
control mixed level

4V

of surround output

( / )

4

24

Vcc

9

Vcc

10

ELECTRIC

MITSUBISHI

PRELIMINARY

VREFD

with ECHO MODE

No.

Voltage

Discription of pin

Notice ; This is not a final specification.
some parametric limits are subject to change.

Symbol Funtion Equivalent circuit

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

Vcc

12 MIC IN MIC input 4V

14 TEST CNT

15

16

17

18

DATA

SCK

REQ

LO1

TEST
control

serial data
"DATA" input

serial data
"SCK" input

serial data
"REQ" input

0

Microphone input

Fixed to GND

input via serial data
from MCU.

0

15

16
17

14

12

18

19

buffer

buffer

buffer

20

19

20

21

22

26

LO2

LO3

XIN

XOUT

port output

Osillator input

Osillator output

reference output

Open collector output
pin (NPN Tr)

connect 4 - MHz
ceramic resonator

1/2 Vcc output.

2.5V

Connect a filter
capacitor.

( / )

5

24

21

22

26

ELECTRIC

MITSUBISHI

PRELIMINARY

VOL OUT

input from mixing

with ECHO MODE

S',L+R,L-R and

from a mixing amplifier

with SURROUND MODE

Discription of pin

Voltage

Notice ; This is not a final specification.
some parametric limits are subject to change.

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

No.

27

28

40

41

Symbol

MIX OUT

DELAY IN delay input

LPF2 OUT

Funtion

MIC output

delay signal
output

output of a
delay volum

Signal output precedent
to delay generator.

4V

that is S',L+R,L-R and
MIC output.

This is s delay input.
Please input by AC

2.5V
cuppring.

delay signal
output

2.5V

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

Equivalent circuit

Vcc

27

28

40

41

42

43

44

45

DELAYSIG IN

DELAYSIG OUT

FBIN EC

FBIN SU

amplifier

Feedback signal
input

Delay signal input to

4V

a mixing amplifier

Delay signal output

4V

Feedback signal input

4V

Feedback signal input

Vcc

42

Vcc

43

Vcc

44
45

( / )

6

24

ELECTRIC

MITSUBISHI

PRELIMINARY

Please pul-up to VREF

Autobalance

Negative input

with external resistances

Always outputs

No.

Voltage

Discription of pin

Autobalance output.

Autobalance

Notice ; This is not a final specification.
some parametric limits are subject to change.

Symbol Funtion Equivalent circuit

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

46

47

48 LPIN

S'OUT Sch output 4V

DBIN

LPF output

of LPF

Sorround channel
output precedent to
delay generator.

signals,irrespectiv of
the operation mode
(2-/3-/4-channel)

This amplifier
compornent 7KHz-LPF

4V

and capaciters.
LPF output is conected
to input of Modifide BNR.

Vcc

46

Vcc

47

Vcc

48

72

73

70

71

LIN

RIN

LT

RT

Lch input

Rch input

Lch output

Rch output

Input of Lch and Rch
that is non-inverted
input type.

4V

by external resistances
for DC bias.

4V

( / )

7

24

Vcc

72
73

Vcc

70
71

ELECTRIC

MITSUBISHI

PRELIMINARY

Vcc

Vcc

VREFA

VREFG

Voltage is the fixed at 4V.

No.

Voltage

Discription of pin

reference voltage except

Auxiliary 1/2Vcc

Notice ; This is not a final specification.
some parametric limits are subject to change.

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

76

77

1

Symbol Funtion

reference
voltage
input

reference voltage
output

FILTER

New future of
M62465FP

1/2Vcc

It is a reference voltage
input terminal to each
circuit inside the IC.

Reference voltage output.

4V

The terminal which
make a 1/2Vcc voltage

1/2

by the resistance.
When it is used,a filter
capacitor is connected.

Equivalent circuit

76

Vcc

77

Vcc

1

79

80

REF OUT

New future of
M62465FP

NSQ

New future of
M62465FP

reference
generator.

1/2Vcc output

Noise sequencer
monitor

1/2Vcc voltage output.
It is used to change

1/2

4V.

Noise sequencer

4V

monitor output.
It is only for test.

Vcc

79

Vcc

80

( / )

8

24

ELECTRIC

MITSUBISHI

PRELIMINARY

AMBIENT TEMPERATURE Ta (º

0.685

1.37

ABSOLUTE MAXIMUM RATINGS

θ

RECOMMENDED OPERATING CONDITION

Analog supply voltage

TERMAL DERATING

Notice ; This is not a final specification.
some parametric limits are subject to change.

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

Symbol Parameter Test conditions Limits Unit

Vcc

VDD

Pd

K
Topr
Tstg

Supply voltage
Power dissipation

Thermal derating
Operating temperature

Storage temperature

1.5

1.0

standard board

Ta≥25ºC

10.5

6.5

1.37

13.7

-20 to +75

-40 to +125

V
V

W

mW/ºC

ºC
ºC

Symbol

Vcc
VDD

fck

• board size

• board thickness

• board material

• copper pattern

Parameter

Digital supply voltage
OSC clock

0.5

0

25 50 75 100 125

0

Standard board

copper thickness
copper size

Conditions

150

C)

70mm×70mm

1.6mm

glass epoxy

18µm

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

Min

8.0

Ratings

Typ

9.0

5.0 5.54.5
4

Max

10.0

Unit

V
V

MHz

( / )

9

24

ELECTRIC

MITSUBISHI

PRELIMINARY

ELECTRICAL CHARACTERRISTICS (DECODER)

Vref

V

Vno

VGNR

Vin=0dBd,f=1.0kHz

Vin=-15dBd,f=1.4kHz

Vin=-20dBd,f=1.4kHz

Vin=-40dBd,f=5.0kHz

Vin=0dBd,f=1kHz

C,S ch Trimmer

ATT

Maximum attenuation

Vin=0dBd,f=1kHz

ATT

Circuit Current

Quiescent

Circuit Current

Quiescent

Quiescent

Input Auto Balance

Adaptive Matrix

Reference Voltage

Trimmer step

Peak Noise

Vnop

Peak Noise

Notice ; This is not a final specification.
some parametric limits are subject to change.

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

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

Symbol Parameter

Conditions

Min

Limits

Typ

Max

Unit

Overall

Icc
IDD

3.5

25
25

4.0

50
50

4.5

mA
mA

CPR
CER

∆VoL
MR

HRAM L, R, C, S' out

THDAM

SNAM

NopAM

Noise Sequencer

∆Vno

Modified B type Noise Reduction

DEC1
DEC2
DEC3
DEC4
THDNR
HRNR THD=1%

SNNR
NoPNR

Capture Range
Error Correction

Output Level Accuracy

relative to C ch

Matrix Rejection relative

Headroom

Total Harmonic Distortion

Signal to Noise Ratio

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

Output Noise Level

Output Level Accuracy

relative to C ch
Output Noise peak measurement time=6sec

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'ch out

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

Rg=0Ω,weighted CCIR/AMR

L, Rch out 2ch mode
measurement time

=40msec

L, R, S'ch out

Vin=0dBd,f=100Hz

Rg=0Ω, weighted CCIR/AMR

measurement time=40msec

4ch mode

4ch mode

4ch mode
2ch mode

±5

±4

-0.5
25

15

75
95

0

40
17

0.05

0.002
80

100

0.5

0.2

0.05

±0.3
±0.3

-15

-0.5 0.5

-12.5
0

-10

±550

9.2

-1.6

-3.0

-4.9

-6.8

15
73

-0.1

-1.5

-3.4

-5.3

0.0
7

17
78

1.4
0

-1.9

-3.8

0.3

±0.3

dB
dB

dB
dB

dB

%

dB

mV0-p

dB
dB

mV0-p

dB

dB

%
dB
dB

mV0-p

-12dB

attenuation level:-12dB Digital Input=-12

max

Digital Input=-31

TS

Surround (L+R,L-R)

THDSU

SNSU

Total Harmonic Distortion

Signal to Noise Ratio

<MIXOUT>

Rg=0Ω, weighted CCIR/AMR

( / )

10

24

-14

-37 dB

0.6

-12

-31 -25

1.0

0.05

85

90

-10

1.4

0.2

dB

dB

%
dB

ELECTRIC

MITSUBISHI

PRELIMINARY

Vrms

Vomax

ATTmax

(Ta=25•

C

,Vcc=9V,VDD=5V,Vin=200mVrms

,

fck=4MHz unless otherwise noted)

ELECTRICAL CHARACTERRISTICS (DIGITAL DELAY)

Notice ; This is not a final specification.
some parametric limits are subject to change.

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

Symbol

Digital Delay

Td

Gv

THD

Maximum output voltage 30kHz LPF,THD=10%

No

Delay Volume

Gv

Maximum attenuation

Parameter

Delay time

Input-output gain

Output distortion

Output noise voltage

(VOL OUT)

Input-output gain

Conditions

See Delay time contorol (15/24)
fordelay 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

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

Max

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

%

dBv

dB

dB

( / )

11

24

ELECTRIC

MITSUBISHI

PRELIMINARY

TEST CIRCUIT

Notice ; This is not a final specification.
some parametric limits are subject to change.

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

( / )

12

24

ELECTRIC

MITSUBISHI

PRELIMINARY

DIGITAL CONTROL SPECIFICATIONS

ADDRESS

ADD/SUB

CENTER MODE

Notice ; This is not a final specification.
some parametric limits are subject to change.

(1)DATA TIMING

REQ

t7

SCK

t2 t3

t1

t5 t6

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

t8

t4

4

1

DATA

(note1) SCK is diseble 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

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

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

NOISE SEQ

SELECTOR2 SELECTOR3

Cch. TRIMMER

S1 S2 S3 V1 V2 V3

Serial Data Format

DATA

SELECTOR1

MIX

LO1

LO2

Sch. TRIMMER 1 0

V4

13

( / )

24

BIT 8

BIT 9 BIT 10BIT 11

No use

LO3

SFB MOS MIC

No use

0 0
0 1

1 1

ELECTRIC

MITSUBISHI

PRELIMINARY

Volume code

ATT(dB)

ATT(dB)

♦

♦

ADD/SUB

ADD

(LO1)

(LO2)

(LO3)

Notice ; This is not a final specification.
some parametric limits are subject to change.

(3)DECODER

ADDRESS(BIT10,11)=0,0

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

NOISE SEQ

mode

SUB

ADDRESS(BIT10,11)=0,1

LO(LOGIC DATA OUT)

OUTPUT DATA "L"

OUTPUT DATA "H"

BIT0

0
1

SELECTOR2

mode

S'

L+R

L-R
MIC

mode

BIT0 BIT1

0
0
1
1

mode

OFF

ON

0
1
0
1

Open Collector

BIT5

BIT1

0
1

0

1

• ADDRESS(BIT10,11)=1,0

mode

BNR OUT
D OUT

3STEREO/MUTE

BIT6

0
1

BIT2 BIT3

L
C
R
S

SELECTOR3

mode

BIT7

0
1

0

0
1
1

0
1
0
1

BIT2

0 0
0
1
1

SELECTOR1

mode

PRO LOGIC

BY-PASS

OTHER SUR

L/R MUTE

BIT3

1
0
1

BIT4 BIT5

0
0
1
1

BIT4(MIX)

0
1

CENTER MODE

mode

0

WIDE

1

NORMAL

0

PHANTOM
OFF

1

DELAY MIX SWITCH

DMIXSW

OFF

ON

Remarks
Mixing OFF
Mixing ON

BIT6 BIT7

0

0

0

1
0

1

1

1

DATA

0

1

±0
–1
–2
–3
–4
–5
–6
–7
–8

–9
–10
–11
–12
–13

–14
–15

Cch. TRIMMER

BIT0 BIT1 BIT4

±0dB
–1dB

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

±0dB ±0dB

–2dB –4dB –8dB –16dB

BIT2 BIT3

±0dB

BIT2(7) BIT3(8)

±0dB

C(S)ch. TRIMMER

0

–16
–17
–18
–19

–20
–21
–22
–23
–24
–25
–26
–27
–28
–29
–30
–31

Sch. TRIMMER

DATA

0
1

BIT0(5) BIT1(6)

BIT5 BIT6 BIT9

±0dB

–1dB –2dB –4dB –8dB –16dB

0 0 0 0 1
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

( / )

14

24

ELECTRIC

MITSUBISHI

PRELIMINARY

ADDRESS(BIT10,11)=1,1

(Sampling frequency)

(Cut-off frequency)

VOLUME CONTROL

∞–∞–∞–∞–∞

Notice ; This is not a final specification.
some parametric limits are subject to change.

(4)DELAY

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

DELAY TIME CONTROL

BIT0

(S1)

BIT7(SFB)

(In surround mode only)

BIT8(MOS)

BIT1

(S2)

0
0 0 1
0 1 0

0 1 1
1 0 0

1 0 1
1 1 0

1 1 1

BIT2

(S3)

0 0

FEEDBACK SWITCH

SFB SW

0
1

OFF

ON

MODE SELECTOR

MODESEL

0
1

SU line

EC line

DELAY TIME

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 )

196.6

ms

( 83.3kHz )

Delay off mode (clock off)

Remarks

Feedback OFF
Feedback ON

Delay LPF

7.0kHz

3.0kHz

BIT3

(V1)

1
1
1

1
1
1

1
1
0

0
0

0
0

0
0
0

BIT4
(V2) (V3)

BIT5

1 1
1

1
1
0
0

0
0

1
1
1
1
0
0
0
0

BIT6

(V4)

1
0
0

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
1
0
1

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

(Note1)Settings in power up

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

DECODER

Mode Settings 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 TIME CONTROL
VOLUME CONTROL
FEEDBACK SWITCH
MODE SELECTOR
DELAY MIX SWITCH
MICROPHONE MIXING SWITCH

DELAY

20.0ms
–∞

OFF

SU line

OFF
OFF

(Note2)

The digital the noise sequencer stop when the clock is off.

( / )

15

24

ELECTRIC

MITSUBISHI

PRELIMINARY

Notice ; This is not a final specification.
some parametric limits are subject to change.

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

( / )

16

24

ELECTRIC

MITSUBISHI

PRELIMINARY

SEQUENCER

R

C

L

CONTROL

(L-R)2(L+R)

Echo filter

Surround filter

Modifide BNR

7kHz

C.Trimmer

S.Trimmer

Delay Mix SW

SU

EC

SELECTOR1

(0 to -31dB)

(0 to -31dB)

SELECTOR3

OUT

DOUT

SELECTOR2

MIC

ADD/SUB

MIX

+

-

+

VREFA

MOS

C.Trimmer

S.Trimmer

A simple noise sequencer circuit for ajustment of

Block name

Function

LPF

Notice ; This is not a final specification.
some parametric limits are subject to change.

FUNCTION

Block Diagram

NOISE

Lin

Rin

S'

2

MIC

ADAPTIVE
MATRIX

MIC

CENTER
MODE

WIDE

NORMAL

PHANTOM

OFF

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

BY-PASS

PLOLOGIC

OTHER
MUTE

3STEREO/MUTE

BNR

Lout

Rout

Cout

CT

Sout

Dout

AVcc
(+9V)

AGND

INPUT
BALANCE

NOISE
SEQUENCER

ADAPTIVE
MATRIX

Digital Deley

MCU Interface

VOL

VDD

AVDD

(+5V)

4MHz

DATASCKREQ

Revises a level error between the input Lch and Rch
for optimum decorder performance.

output level.

Contineuously analyze the two-channel matrixed
audio input to determine the direction and relative
magnitude of encoded soundfield.

LO1
LO2

LO3

GND

CENTER MODE
CONTROL

Possible to select 4 - center mode position.
(WIDE,NORMAL,PHANTOM,OFF)

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

( / )

17

24

ELECTRIC

MITSUBISHI

PRELIMINARY

Function

while reducing noise and certain crosstalk signals in a

This is a switch to mix miclophone signal to a main

This is a switch to select output or not a mixed signal

Block name

Notice ; This is not a final specification.
some parametric limits are subject to change.

This block restores the signal to its original spectrum

Modifide BNR

final stage of the surround chain.

Select a positive phase signal or a negative phase

ADD/SUB

SELECTOR1

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 .

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

SELECTOR2

SELECTOR3

SELECTOR4

Digital Deley

FEEDBACK

MODE SEL(MOS)

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.

This is a switch to connect a simple noise
sequencer output to ADAPTIVE MATRIX stage for
level ajust-ment.

Make 7 kinds of delay signal s.(15.4msec to 196.6msec)
The delay function and CLK signal stop at the time
of 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.

VOL

MIC MIX

(12-step)

signal (Lch,Rch).

Delay Mix SW

to DOUT pin.

( / )

Control the ATT level of delay signal from 3dB to -∞

18

24

ELECTRIC

MITSUBISHI

PRELIMINARY

Lout,Rout,Cout

ADAPTIVE

ADAPTIVE

ATT

Sout

Notice ; This is not a final specification.
some parametric limits are subject to change.

LEVEL DIAGRAM

• Dolby Pro Logic mode

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

Gv

GND

Lin

Rin

VCC=9V

Vref=4V

Gv

Vcc=9V

3dB

INPUT
BALANCE

MATRIX

3dB

0dB(300mV)

S'

-6dB

0dB(300mV)

-3.2dB

9.2dB

VDD=5V

Vref=2.5V

Digital
Delay

0dB(300mV)

Vcc=9V

Vref=4V

Modified
BNR

SOUT

GND

Gv

Vcc=9V

GND

Lin

Rin

Vref=4V

Vref=4V

INPUT
BALANCE

MATRIX

0dB(300mV)

( / )

19

CENTER
MODE
CONTROL

24

Cout

Lout,Rout

Cout

Lout

Rout

ELECTRIC

MITSUBISHI

PRELIMINARY

ATT

ADAPTIVE

Sout

Lout,Rout

Notice ; This is not a final specification.
some parametric limits are subject to change.

• Digital Space Surround mode

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

Gv

GND

Lin

Rin

Vref=4V

Gv

VCC=9V

0dB(300mV)

L+R

2

L-R

2

SELECTOR2

-3.2dB

0dB(300mV)

3dB

VDD=5V

Vref=2.5V

Digital
Delay

0dB(300mV)

Vcc=9V

Vref=4V

SOUT

SELECTOR3

Vcc=9V

GND

Lin

Rin

Vref=4V

INPUT
BALANCE

MATRIX

( / )

24

20

CENTER
MODE
CONTROL

Lout,Rout

Lout

Rout

ELECTRIC

MITSUBISHI

PRELIMINARY

Notice ; This is not a final specification.
some parametric limits are subject to change.

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 up

* Transient noise common with power up occurs.

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

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 to 49.2 ms

147.5 ,196.6 ms

( / )

21

MUTE TIME

24

Freed from muting

123 ms

492 ms

ELECTRIC

MITSUBISHI

PRELIMINARY

Notice ; This is not a final specification.
some parametric limits are subject to change.

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

( / )

22

24

(Note)
It's recommended to remove these external
parts of M62460FP.
(These external parts don't affect the funtion of
M62465FP actually.)

ELECTRIC

MITSUBISHI

PRELIMINARY

Notice ; This is not a final specification.
some parametric limits are subject to change.

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

( / )

23

24

ELECTRIC

MITSUBISHI

PRELIMINARY

OPTIONAL PARTS LIST

Values

Values

ΩKΩ

Ω

ΩKΩ

Vol

Vol

ΩKΩ

Ω

Ω

Ω

Ω

Ω

Ω

Ω

Ω

Ω

Ω

Ω

Ω

Notice ; This is not a final specification.
some parametric limits are subject to change.

MITSUBISHI SOUND PROCESSORS

M62465FP

Dolby Pro Logic Surround

Parts No.

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

Unit

47
10
10
10
10

0.1
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
680

0.1

0.0056

0.047

0.68

0.22

0.22

4.7

4.7

0.22

0.22

0.1

0.047

0.047

0.1

0.1 20%

0.022

0.022

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.

10%

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

10%

5%

5%
10%
10%
10%
20%
20%
10%
10%
20%

5%

5%
20%

5%

5%

Parts No.

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

R6

R9
R21
R22

RA44
RA45

R44
R45
R47
R48
R51
R66

RA66

R67
R68

RA68

R69
R72
R73
R74
R78

Unit

0.1

680

0.1 µF 5%

680

0.1 µF 5%

0.1 µF 5%

0.1 µF 5%
10

10
22

100 µF
220
220 µF

10
20

1

1
51
51

24
24

330

47
15

7.5
47
15

7.5
22
22

4.7

100

µF

pF

pF

µF
µF
µF 20%

µF

K

M

K
K

K

K
K
K
K
K
K
K
K
K

M

K

Tol.

20%

5%

5%

5%
5%

10%

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

10%

1%

( / )

24

24