Mitsubishi M62440FP Datasheet

MITSUBISHI SOUND PROCESSOR

M62440FP

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

Description

The M62440FP is an IC developed for car audio, it has a built-in 4ch input selector,
master volume, loudness, tone control and fader volume blocks. All of these blocks are
controlled via serial data.Thank to the used zero crossing detector, very low click noise
are obtained.

Features

Built-in zero cross detector prevents click noise
4-input Selector
Loudness
Tone Control Bass/Mid/Treble
Master Volume/Fader Volume
Serial Data Control

ELECTRIC VOLUME CONTROL WITH TONE
CONTROLLER FOR 4-SPEAKER APPLICATIONS

Outline 42P2R

Recommended Operating Conditions

Supply voltage range•••••Vcc=6 ~ 9V Rated supply voltage••••••Vcc=8V
VDD=4 ~ 6V VDD=5V

Block Diagram

IND2
INC2
INB2

INA2

IND1
INC1

INB1
INA1

Volume
&
Loudness

Bass/
Mid/
Treble

Zero Cross
Detector

Zero Cross
Detector

Bass/
Mid/
Treble

Fader

Interface

Fader

Lch
Front

Rear

Front

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ELECTRIC

Rear
Rch

(1/10)

N.C.

N.C.

22

23

24

I/F

Vcc

200K

21

20

19

N.C.

MCU

0.22µ

ON

OFF

Loudness OFF

ON

OFF

Loudness ON

SW A

SW B

100K

0.0033µ

FROUT

RROUT

1.5K

0.047µ

6.8K

25

N.C.

VDD

1µ

26

VDD

∞

+

∞

+

TIMER

DETECTOR

GND

∞

+

∞

+

N.C.

17 18

FROUT

16

15

RROUT

1µ

13 14

0.01µ

31 30

0.01µ

12

1.5K

32

33

34

0.068µ 0.068µ

35 2729 28

B

Loudness SW

ZERO CROSS

ZERO CROSS

DETECTOR

DETECTOR

Loudness SW

B

10 11

9

8

0.047µ

6.8K

0.068µ 0.068µ

100K

0.0033µ

A

36

2.2µ

37

22K

38

22K

3940

22K

22K

INA2 INB2 INC3 IND4

VCC

22K

41

42

VCC

Pin Configuration & Application Example

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ELECTRIC

REF

22K

A

7

2.2µ

6

54

22K

22K

3

22K

2

22K

INA1 INB1 INC1 IND1

1

47K

47K

10µ

(2/10)

Pin Description

Pin No. Symbol Function

10
11

12

1
2
3

REF
INA1
INB1

IC signal ground. Apply 1/2 Vcc

Input pin for channel 1 of the input
selector switch block

INC14

5
6
7
8

9

IND1

SELECT OUT1

VOL IN1
LOUD IN1

BASSA1
BASSB1

MID1
TRE1

Output pin of the input selector switch block

Input pin of the volume block

Pin for setting the frequency characteristics
of the loudness block

Pin for setting the frequency characteristics
of the tone(Bass) block

R-ladder terminal of tone(Mid)
R-ladder terminal of tone(Treble)

13
14

15
16
17

18
19

20

TONE OUT1
FADER IN1

REAR OUT1
FRONT OUT1
GND

N.C.
TIM1

DATA
N.C.21

Output pin of the tone block
Input pin of the fader volume
Output pin of the fader volume(Rear)

Output pin of the fader volume(Front)

Ground

Non Connection

Timer setting terminal
The relationship between outside parts
C and setting time is T=13.8X 10 •C(sec).

Input pin of the control data
This pin inputs data in synchronization with CLOCK

Non Connection

4

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ELECTRIC

(3/10)