Mitsubishi M62437FP Datasheet

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

MITSUBISHI ELECTRIC

M62437FP

SOUND CONTROLLER WITH
SRS FOCUS & SRS SURROUND

SRS F

SRS F

DESCRIPTION

This is an IC for car audio.
F( )cus system can realize more optimal speaker position.

FEATURE

Built-in F( )cus [LF/HF elevation(position) and
Bass Compensation can be changed by the external resisters.]
Built-in SR
SRS ON/OFF mode and FOCUS ON/OFF mode
can be controlled by the DC voltage.

RECOMMENDED OPERATING CONDITION

Supply voltage range••••Vcc=7 ~ 9V
Rated supply voltage••••Vcc=8V

( ))

cus, SRS 3D Stereo Sound Controller

(

cus, SRS 3D Stereo Sound Controller

42P2R

SYSTEM BLOCK DIAGRAM

Lin

Rin

M62437FP

Rear L

Tone

Rear R

Tone

M62419FP

Front L

F( )CUS

Front R

Interface

SRS

ON/OFF

FOCUS
ON/OFF

LF Ele.

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ELECTRIC

HF Ele. Bass Comp.

(1/12)

OUT

FOCUS

ON/OFF

SRS

ON/OFF

2.2µ
NC

25 24 23

I/F

BASS Comp.
Position H/L

20 21

FOCUS
Position H/L

19

Vcc

Vcc

2.2µ
OUT

VOL.5

3K

390p

2.4K

10K

VOL.4

1K

C9

C6

C17

R39

0.0039µ

0.01µ

0.1µ

C13

NC

27 26 22

29 28

30

3136

32

3334

35

Vref

17 18

16

15

12 13 1410

11

FOCUS IN

8 9

SRS OUT

7

C12

NC

VOL.1

C10

NP

0.0039µ

1K

0.22µ

2.2µ

C16

R41

390p

2.4K

10K
VOL.3

C2

C3

0.01µ

3K

0.82µ

VOL.2

1K

C9

0.22µ

Block Diagram & Application Example

2.2µ

470p

38 3742

NP

C6

40

FOCUS IN

REF

SRS OUT

IN

VCC

41 39

2.2µ

+

MITSUBISHI
ELECTRIC

C7

C1

470p

)
(

0.018µ

2.2µ
IN

10µ

Cref

61

5

43

2

-

(2/12)

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Conditions Ratings Unit

Vcc,Vdd V

Pd

K mW/°CTa>25

Topr

Tstg

Supply Voltage

Power Dissipation

Thermal Derating

Operating Temperature

Storage Temperature

Ta≤25

12

990

9.9

-20 ~ +75

-55 ~ + 125

mW

°C

°C

Thermal Derating

1200

1000

990

800

600

495

400

Power Dissipation Pd [ mW ]

200

25 50 75 100

AMBIENT TEMPERATURE Ta [ C ]

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ELECTRIC

125 150

(3/12)

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ELECTRICAL CHARACTERISTICS

AIdd

(1) Power Supply Characteristics

Parameter Conditions Unit

Symbol

Icc

(2) Input / Output Characteristics

Parameter

Maximum
Output Voltage

Maximum
Input Voltage

Symbol

VIM1

VIM2

VIM3

Input; pin2,41
Output; pin18, 24

Input; pin2,41 /Output; pin18, 24
SRS ON,FOCUS OFF
THD=1%

Input; pin2,41 /Output; pin18, 24
SRS ON
FOCUS ON(All VOL.=max)
THD=1%

(Ta=25°C,Vcc=8.0V, f=1kHz)

42pin Icc

No Signal

Ta=25°C,Vcc=8.0V, f=1kHz
VOL.1,2=1KΩ(VOL),VOL.3,4=10KΩ(VOL)
VOL.5=1KΩ(VOL)

Conditions

RL =10KΩ,THD=1%

f=150Hz

f=1KHz

f=20KHz

Min

Limit

Min

1.6VOMt

0.4

0.2

0.06

typ

25

Max

45

Limit

typ

1.9

0.6

0.3

0.11

Max

-

-

-

-

mACircuit Current

Unit

Vrms

Vrms

Pass Gain

Output Noise
Voltage

Channel
Separation

Gvt

Gv1

Gv2

Gv3

Vno1

Vno2

Vno3

CT

Vi=100mVrms
SRS, Focus OFF
Input; pin2,41 /Output; pin18, 24

Vi=100mVrms
Input; pin2,41 /Output; pin18, 24
SRS ON,FOCUS OFF

Vi=100mVrms
SRS ON
FOCUS ON(All VOL.=max)
(2pin,41pin)-(18, 24Pin)

Rg=0(2,41pin)
SRS OFF ,FOCUS OFF
DIN-AUDIO filter

Rg=0(2,41pin)
SRS ON ,FOCUS OFF
DIN-AUDIO filter

Rg=0(2,41pin),
SRS ON, FOCUS ON(All VOL.=nax)
DIN-AUDIO filter

Input Side:f=1KHz,Vi=0.5Vrms
Monitor Side:Rg=0, IHF-A filter
Focus:OFF, SRS:OFF
RL=10KΩ

f=150Hz

f=1KHz

f=20KHz

0

2.0-2.0

10

7 13

18

15 21

28

25 31

5.5

18

90

15

50

150

-

-

-

-

dB

µVrms

dB-90 -75

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ELECTRIC

(4/12)