Mitsubishi M65854FP Datasheet

MITSUBISHI SOUND PROCESSOR ICs

0

SSEERRIIEES

S

PRELIMINARY

M65854FP

Notice ; This is not a final specification.

some parametric limits are subject to change.

DESCRIPTION

The M65854 is a CMOS IC built-in Digital Echo function with microphone peripheral circuits for

"Karaoke" equipment packed in a single chip. It is suitable for "Karaoke" equipments such as Video CD Player, Mini Stereo, CD-Radio Cassette, TV or VCR.

FEATURES

• High performance digital echo circuit thanks to 16Kbit memory

• Built-in surround function which works Simulated Stereofor monaural source and Stereo Surroundfor stereo source

• ALC-equipped microphone amplifiers permit excessively high input. ALC operating voltage can be set as desired.

• 2 microphone volumes and echo effect volume are included

• Stereo microphone-line mixing amplifiers

• Karaoke entertainment functions such as vocal cut and

automatic vocal support system

• Built-in current-control oscillation circuit

• Built-in automatic reset circuit activated with power on

• The use of AUDIO SW easy to control without Microcomputer

• 5V single power supply

RECOMMENDED OPERATING CONDITION

• Supply voltage range • • • • • • • • • •Vcc = 4.5 ~ 5.5V

Rated supply voltage • • • • • • • • • • Vcc = 5V

DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT

PIN CONFIGURATION

MCLKCONT

MIC1NFIN

MIC1OUT

MIC1VOLIN

MIC2NFIN

MIC2OUT

MIC2VOLIN

MIC OUT LPF1IN1 LPF1IN2

LPF1OUT

ADINTOUT

ADINTIN

ADCONT

MIC1IN

ALC1

MIC2IN

ALC2

REF

GND

VCC

1 2 3

M 6 5 8 5 4 F P

4 5 6 7 8 9

10 11 12 13 14 15 16 17 18 19 20

21

5

KARAOKE

42

MIC1VOL MIC2VOL

41

ECHOVOL

40

AUDSW5

39

AUDSW4

38

AUDSW3

37

AUDSW2

36

AUDSW1

35

PS2

34

PS1

33

LOUT

32

ROUT

31

VCFIL

30

LIN

29

RIN

28

LPF2OUT

27

LPF2IN2

26

LPF2IN1

25

DAINTOUT

24

DAINTIN

23

DACONT

22

SYSTEM CONFIGURATION

Lch INPUT

Rch INPUT

ALC

MIC

ALC

SOURCE

SELECTOR

L R

(L+R)/2 VOCAL

CUT

MIC VOLMIC VOL

MIC VOL

MIX

PHASE SHIFTER SURROUND

ECHO

FEEDBACK

VOL

MITSUBISHI ELECTRIC

ECHO VOL

MIX

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1

Lch OUTPUT

Rch OUTPUT

MITSUBISHI SOUND PROCESSOR ICs

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SSEERRIIEES

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PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

PIN CONFIGURATION

MIC2VOL

MIC1VOL

42 41

DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT

AUDSW5

39 38

AUDSW4

AUDSW3

37

AUDSW2

AUDSW1

36

35

ECHOVOL

40

34

PS2

PS1

33 32

LOUT

31 30

M65854FP

VCFIL

ROUT

LIN

29

LPF2OUT

RIN

28

27 25 24 23

LPF2IN2

26

DAINTOUT

LPF2IN1

5

KARAOKE

DACONT

DAINTIN

22

A/D A/D A/D

MCLK

ALC

2

1

MIC1IN

MCLKCONT

3

ALC1

AUDIO SW I/F

56 7

4

MIC1OUT

MIC1NFIN

MIC VOL

MIC2IN

MIC1VOLIN

ALC

8

PHASE SHIFTER

910

ALC2

MIC VOL

11 12 13

MIC2OUT

MIC2NFIN

(L+R) / 2 L R

MICOUT

LPF1IN1

MIC2VOLIN

STEREO

ECHO VOL

LPF

14 15

LPF1IN2

LPF

16kSRAM

ECHO F.B(-2dB)

A/D

16

17

LPF1OUT

ADINTOUT

MAIN LOGIC

1/2Vcc

18 19

ADINTIN

ADCONT

D/A

GND

REF

20

Vcc

21

GND

VCC

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2

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MITSUBISHI SOUND PROCESSOR ICs

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SSEERRIIEES

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PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

PIN DESCRIPTION

Pin No.

1 2 3 4

5 6

7

Symbol Nam I/O Function

MCLKCONT MIC1IN ALC1 MIC1NFIN

MIC1OUT MIC1VOLIN

MIC2IN

DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT

Clock control

Microphone 1 input

ALC1 control

Microphone 1 negative feedback input

Microphone 1 input

Microphone 1 volume input

Microphone 2 input

M65854FP

Controls built-in clock generation circuit with

—

external R

I

To connect MIC1 To connect ALC attack / recovery time

—

setting capacitor

To connect low cut-off frequency of MIC1

I

amplifier setting capacitor

To connect capacitor to reduce noise generated at time of volume change

I

To connect MIC2

5

KARAOKE

8 9

10 11

12 13

14 15

16 17 18

ALC2 MIC2NFIN MIC2OUT

MIC2VOLIN MICOUT LPF1IN1

LPF1IN2 LPF1OUT ADINTOUT ADINTIN ADCONT

ALC2 control

Microphone 2 negative feedback input

Microphone 2 input

Microphone 2 volume input

Microphone output

Low pass filter 1 input 1

Low pass filter 1 input 2

Low pass filter 1output

A/D integrator output

A/D integrator input

A/D control

To connect ALC attack/recovery time

—

setting capacitor

To connect low cut-off frequency of MIC2

I

amplifier setting capacitor

To connect capacitor to reduce noise generated at time of volume change

I

Mixing output of MIC1 and MIC2

I

Pre-filter before A/D convertor for

I

digital delay

Composes D/A conversion integrator with external capacitor

I

To determine adaptive time constant of

—

A/D convertor with ADM system

—

19 20

21

REF

GND

VCC

Reference power output

Ground

Power supply

MITSUBISHI ELECTRIC

To connect 1/2 Vcc output and filter capacitor

— —

3

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MITSUBISHI SOUND PROCESSOR ICs

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r

O

SSEERRIIEES

S

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

Pin No.

2 2 2 3 2 4 2 5 2 6 2 7 2 8

Symbol

DACONT DAINTIN

DAINTOUT

LPF2IN1 LPF2IN2 LPF2OUT

RIN

DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT

D/A control

D/A integrator input

D/A integrator output

Low pass filter 2 input 1

Low pass filter 2 input 2

Low pass filter 2 output

Rch line input

Nam

M65854FP

I/O Function

To determine adaptive time constant of

—

D/A convertor with ADM system

I

Composes D/A conversion integrator with external capacitor

I

Post-filter after D/A conversion for digital delay

I

Rch line input

5

KARAOKE

2 9 3 0 3 1 3 2 3 3 3 4

3 5 3 6

3 7 3 8

3 9

LIN VCFIL ROUT LOU

PS1

PS2 AUDSW1

AUDSW2 AUDSW3

AUDSW5

AUDSW4

I

Lch line input

Vocal cut filte

Rch output

Lch output Lch mixing output

Phase shift input 1

Phase shift input 2

Source selector and Auto vocal support sw

Auto vocal support sw

Phase shift sw

Lch line input

Processes frequencies lower than the vocal band

—

Rch mixing output

I

Determines a constant at time of phase shift

I

Source selector and Auto vocal support sw : audio signal is selected by setting these

I

switches to L or H

Auto vocal support sw : ON set to

I

H,OFF set to L

I

Phase shift sw : ON set to H,OFF set to L

4 0

4 1

4 2

ECHOVOL

MIC2VOL

MIC1VOL

Echo effect volume control

MIC2 volume control

MIC1 volume control

MITSUBISHI ELECTRIC

Echo effect volume control by DC

I

voltage

I

MIC2 volume control by DC voltage

I

MIC1 volume control by DC voltage

4

( / 1 4 )

MITSUBISHI SOUND PROCESSOR ICs

0

SSEERRIIEES

S

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

ELECTRICAL CHARACTERISTICS

Symbol Parameter Test conditions

Icc

TOTAL

Gvo Amplifier gain

THD1

THD2 Distortion Vi= -37dBV,with ALC operated

VoALC

DIGITAL ECHO WITH MICROPHONE MIXING CIRCUIT

( Vcc=5V,f=1kHz,vi=100mVrms,Ta=25°C Unless otherwise noted )

Circuit current

Distortion Vo = -17dBV,with ALC not operated

ALC operating voltage

No signal provided

Vo = -17dBV

measurement : +2dBV

M65854FP

Limits

Min Typ Max

—

— —

0

35

47

0.1

3.0

5

KARAOKE

Unit

mA

dB

0.5

6.0

+2 dBV

+4

% %

TALCAT

TALCRE ALC recovery time C=4.7µF

Microphone amplifier

VoMAX

No

Zi

Gv I/O voltage gain Volume max

ATTmax Maximum attenuation

THD Distortion Volume max

Mic volume

Gv I/O voltage gain Volume max

ALC attack time

Maximum output voltage

Output noise voltage

Input impedance

Maximum input voltageViMAX

Output noise voltage JIS - ANo

C=4.7µF

THD=10%

Gv=47dB,f=100 to 5KHz

Volume min

THD=10%

25

1.0

1.2 —

5

-3 — —

1.3 —

-3

40

1.5 sec

1.3

-68 10

0

-72

0.15

1.6

55

2.0 —

-57 20

+3

-67

0.30 —

msec

Vrms

dBV

K

dB

dBV

Vrms

-96 dBV-90 0

+3

dB

%

ATTmax Maximum attenuation

THD Distortion Volume max

Maximum output voltageVoMAX

volume

Echo effect / Echo feed back

Output noise voltage JIS - ANo

Volume min

THD=10%

MITSUBISHI ELECTRIC

— —

—

-72

0.15

1.4

-67

0.30 —

-96 dBV-90

5

( / 1 4 )

dBV

%

Vrms1.1