Mitsubishi M65851FP Datasheet

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

SERIES

PRELIMINARY

Notice ; This is not a final specification.

M65851FP

SERIES

50

KARAOKE

some parametric limits are subject to change.

SINGLE CHIP KARAOKE PROCESSOR

DESCRIPTION

*The M65851FP is an LSI that not only contains circuits (echo and key control) necessary for Karaoke but also improves other peripheral functions. *This IC has full peripheral functions including vocal cut, phase shifter, equalizer,detection of intervals between songs, digital surround, and Karaoke scoring. It is therefore suitable not only for dedicated Karaoke units but also for radio cassette tape recorders, TV,VCR,and miniature unit audio systems with Karaoke function.

FEATURES

*Capable of composing echo and key control circuits necessary for Karaoke system for Karaoke system with a single chip *Echo circuit is capable of supporting digital surround by adopting 16Kbit RAM built-in digital delay *17steps of -8 to +8 for key control (1step is equivalent to a half tone) *Karaoke entertainment functions such as Karaoke scoring,vocal cut, equalizer, phase shifter, detection of intervals between songs, and magic voice functions *Generation of unnecessary radiation is avoided because clock's built-in current-control oscillation circuit keeps clock effects inside the clock *Built-in automatic reset circuit activated with power turned on *5V single power supply

RECOMMENDED OPERATING CONDITION

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

Rated supply voltage......................................Vcc=5V

SYSTEM CONFIGURATION

Lch INPUT

Rch INPUT

SOURCE

SELECTOR

R

L R+L MIC

VOCAL

CUT

ALC

KEY CONTROL

SCORE SYSTEM

MUSIC

SEARCH

PHASE SHIFTER

(ON/OFF)

Outline 80P6N-A

0.8mm pitch QFP

(20.0mmx14.0mmx2.8mm)

MIX

EQ

MIX

Lch OUTPUT

Rch OUTPUT

MIC

MIC AMP

MIC VOL

ECHO/ SURROUND

MITSUBISHI ELECTRIC

DELAY VOL

MIX

D-65851-65D

( / 36 )

1

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

PIN CONFIGURATION

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

M65851FP

50

KARAOKE

SERIES

MBPF2

MBPF3

LBPF1 LBPF2

LBPF3

KSIGIN

KCOUT KOLPF2 KOLPF1

KHPF2 KHPF1

KCISIG KILPF1

MBPF1

1

2

3

4

5

6

7

8

9

10

11

12

13

MGAIN

BPF1

BPF2

VOL

LPF

HPF

LPF

Gain

LGAIN

Gain

MICIN

76 75 74 73 72

77801779 78

SOURCE SELECTOR

SCORE

KEYCON

VCFIL

L RMIC

LIN

16Kbit SRAM

RIN

DELAY

PS1

PS2

71

PHASE SHIFTER

16Kbit SRAM

EQL1

70 69

EQL2

EQL3

Equalizer

EQL4

68 67

EQLAMPIN1

EQLAMPIN2

66 65

EQLAMPOUT

Equalizer

VCC

GND

64

LOUT

63

ROUT

62

EQRAMPOUT

61

EQRAMPIN2

60

EQRAMPIN1

59

EQR4 EQR3

58

57

EQR2

56

EQR1

55

VCC2

54

AGND2

53

DOUT

52

DISIG

KILPF2

KADCINTIN

KADCINTOUT

KADCCONT KDACCONT1 KDACCONT2

KDACINTOUT

KDACINTIN

REF

AGND1

AVCC1

14

15

16

18

19

20

21

22

23

24

25 26 27

ADC

DAC

GND

VCCREF

KCSEL

KARAOKE SCOREING

CLOCK

28

VDD

29 30

MCK

GND

VDD

31

DGND

LOGIC

MCU

INTERFACE

33 34 35 36 37 38 39 40

32

DATA

CLOCK

REQ

STROBE

D.VOL

AUTO RESET

TEST

TEST1

W/RSEL

F.VOL

TEST2

DOLPF3

LPF

51

50

49

LPF

48

47

46

ADC

45

44

43

DAC

42

41

DOLPF2

DIN DILPF1

DILPF2 DILPF3 DADCINTIN

DADCINTOUT

DADCCONT DDACCONT DDACINTIN DDACINTOUT

DOLPF1

SCORETEST1

SCORETEST2

SCORETEST3

MITSUBISHI ELECTRIC

( / 36 )

2

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

PIN DESCRIPTION

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

M65851FP

50

KARAOKE

SERIES

Pin No.

1 2 3 4

5 6

7 8

9

10 11

12 13

14 15

16

Symbol Name I/O Function MBPF2 MBPF3

LBPF1

LBPF2

LBPF3

KSIGIN KCOUT

KOLPF2

KOLPF1

KHPF2 KHPF1

KCISIG KILPF1

KILPF2

KADCINTIN

KADCINTOUT

Microphone band pass filter2

Microphone band pass filter3

Line band pass filter1

Line band pass filter2

Line band pass filter3

Key controled signal input

Key control output Low-pass filter

2 output

Low-pass filter 1 input

High-pass filter 2 output

High-pass filter 1 input

Key control signal output

Low-pass filter 1 input

Low-pass filter 2output

A/D integrator input

A/D integrator output

I

O

Composes band pass filter for Karaoke scoring (For microphone signal)

-

I

O

I

O

I

O

I

-

I

O

I

O

Composes band pass filter for Karaoke scoring (For reference signal)

Key controled signal input

Key contorol signal output

Post-filter after D/A conversion for key control

High-pass passage filter for high-pass through

Output by selecting from L,L+R/2,L-R,and microphone input

Pre-filter after D/A conversion for key control

Composes an A/D conversion integrator with external C

17 18

19 20

KADCCONT A/D control

KDACCONT1

KDACCONT2

KDACINTOUT

D/A control 1

D/A control 2

D/A integrator output

-

O

MITSUBISHI ELECTRIC

Composes a D/A conversion integrator with external C

( / 36 )

3

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

M65851FP

50

KARAOKE

SERIES

Pin No.

21 22

23 24

25 26

27 28

29 30

Symbol Name I/O Function

KDACINTIN

D/A integrator input

REF Reference

AGND1 VCC1

KCSEL

SCORETEST1

SCORETEST2 SCORETEST3

Analog GND1

Analog power supply1

Key control selector

Score test selector1

Score test selector2

Score test selector3

MCK

VDD

Digital Power supply

I

-

I:CMOS20kΩ Controls the Key selector key control mode or not

I:CMOS20kΩ

O:CMOS Score test selector ; normally no connect

-Clock control

-

Composes a D/A conversion integrator with external C

Analog reference voltage = 1/2Vcc

5V

Score test selector ; normally set to L level

External R controls built-in clock generator circuit

.

31 32

33 34

35 36

37 38

39 40

DGND

DATA

CLOCK STROBE

REQ

W/RSEL TEST1 TEST2

DOLPF3

DOLPF2

Digital GND

Serial data

Clock control

Strobe

Request Request output Write-Read

selector

Test signal control input1

Test signal control input2

Low-pass filter 3 output

Low-pass filter 2 input

-

I:CMOSShumitt

50kΩ

O:CMOS

I:CMOSShumitt

50kΩ

I:CMOSShumitt

50kΩ

O:CMOS

I:CMOSShumitt

50kΩ

I:CMOS20kΩ

O

I

Serial data input/output

Shift clock output

Micro computer interface

Strobe output

Control the selector write/read

Test input pin ; normally set to L

Post-filter after D/A conversion for digital delay

MITSUBISHI ELECTRIC

( / 36 )

4

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

M65851FP

50

KARAOKE

SERIES

Pin No.

41 42

43 44

45 46

47 48

49 50

51 52

Symbol Name I/O Function

DOLPF1 DDACINTOUT

DDACINTIN

DDACCONT

DADCCONT

DADCINTOUT

DADCINTIN DILPF3

DILPF2

DILPF1 -

DIN DISIG

Low-pass filter 1 input

D/A integrator output

D/A integrator input

D/A control

A/D control

A/D integrator output

A/D integrator input

Low-pass filter 3 output

Low-pass filter 2 input

Low-pass filter 1 input

Delay select signal input

Delay select signal output

-

O

I

-

O

I

O

I

O

Post-filter after D/A conversion for digital delay

Composes a D/A conversion integrator with external

Composes a A/D conversion integrator with external

Pre-filter before A/D conversion for digital delay

Outputs after selection of echo/surround input signal

53 54

55 56

57 58

59 60

DOUT

AGND2

VCC2 EQR1 EQR2

EQR3

EQR4

EQRAMPIN1

Delay signal output

Analog GND2

Analog Power supply2

Rch equalizer adjustment C1

Rch equalizer adjustment C2

Rch equalizer adjustment C3

Rch equalizer adjustment C4

Rch equalizer input 1

O Delay signal output

-

Composes external C for the adjustment of Rch equalizer characteristics (bass and treble)

-

I

MITSUBISHI ELECTRIC

( / 36 )

5

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

M65851FP

50

KARAOKE

SERIES

Pin No.

61 62

63 64

65 66

67 68

69 70

71

Symbol Name I/O Function EQRAMPIN2 EQRAMPOUT

ROUT

LOUT

EQLAMPOUT

EQLAMPIN2 EQLAMPIN1

EQL4 EQL3 EQL2

EQL1

Rch equalizer input 2

Rch equalizer output

Rch output

Lch output

Lch equalizer output

Lch equalizer input 2

Lch equalizer input 1

Lch equalizer adjustment C4

Lch equalizer adjustment C3

Lch equalizer adjustment C2

Lch equalizer adjustment C1

I

O

O Rch mixing output

O

I

-

Composes external C for the adjustment of Rch equalizer characteristics (bass and treble)

Lch mixing output

Composes external C for the adjustment of Lch equalizer characteristics (bass and treble)

-

72 73

74 75

76 77

78 79

80

PS2 PS1

RIN LIN VCFIL

MICIN

LGAIN MGAIN

MBPF1

Phase shift input 2

Phase shift input 1

Rch line input

Lch line input

Vocal cut filter

Microphone input

Line input gain control

Microphone input gain control

Microphone band pass filter2

I

-

MITSUBISHI ELECTRIC

Determines a constant at time of phase shift

Rch line input

Lch line input

Processes frequencies lower than the vocal band

Microphone input

Set gain for the no music detection

Set gain for the microphone detection

Composes band pass filter for Karaoke scoring (For microphone signal)

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6

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

ABSOLUTE MAXIMUM RATINGS

Symbol Name Test conditions Ratings Units

50

KARAOKE

SERIES

Vcc

Vi

Pd

Supply voltage Circuit current

Input Voltage

Operating

Topr

Tstg

temperature Storage

temperature

RECOMMENDED OPERATING CONDITION

Symbol Parameter Test conditions

VCC

Analog supply voltage

6.0

-0.3~Vcc+0.3

815

-20~+75

-40~+125

Limits

Min Typ Max

4.5 5 5.5

V

W

°C

Units

V

VDD V4.5 5

VCC-VDD

VIL

VIH

Digital supply voltage

Analog-Digital voltage margin

L input level

H input level

-0.3 0 0.3

25 26 27 28 37 38

32 33 34 36 0

25 26 27 28 37 38

32 33 34 36

MITSUBISHI ELECTRIC

0.7VDD

VDD-1

0

5.5

V

-

0.3VDD

0.8

VDD

VDD V

V V

V

( / 36 )

7

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

ELECTRICAL CHARACTERISTICS

(Vcc=5V,f=1kHz,vi=100mVrms,F0,Ta=25°C Unless otherwise noted)

Symbol Parameter Test conditions

M65851FP

Limits

Min Typ Max

50

KARAOKE

SERIES

Unit

Icc

Circuit current

No signal provided

fck Clock frequency 8 MHz

RID

TOTAL

IOH IOL

Gv THD

Pulldown resistance

"H"Output current

"L"Output current

Gain between input and output

Output distortion

25 26 27 28 37 38

32 33 34 36

32 35

pin VOL=1.0V 20 34 -

VOL=0dB

Vo=100mVrms,30kHz L.P.F

pin VOH=4.0V - -20 -10

25 60 90

6.8 9.2

10 20 40 kΩ

25 50 100 kΩ

- 3

-

0

1.3

+ 3

3

Output noise

No

KEY CONTROL

Vomax

VOLATTmax

voltage

Maximum output voltage

Maximum volume attenuation

JIS-A

THD=10%

Gain=-∞

-

0.7

-

- 80

1.0

-60

- 65

-

-40

mA

mA mA dB

%

dBV

Vrms

dB

Td Delay time

Digital Delay

Sets 10msec with microcomputer Sets 15msec with microcomputer

Sets 20msec with microcomputer Sets 30msec with microcomputer Sets 50msec with microcomputer Sets 100msec with microcomputer Sets 130msec with microcomputer

Sets 150msec with microcomputer

Sets 200msec with microcomputer

MITSUBISHI ELECTRIC

4.2

8.4

13.5

19.7

40.2

86.3 116 128 177

10.2

15.4

20.5

28.7

49.2

98.3 131

148

197

16.2

22.4

27.5

37.7

msec

58.2

110.3 146 168 217

( / 36 )

8

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

(Vcc=5V,f=1kHz,vi=100mVrms,F0,Ta=25°C Unless otherwise noted)

M65851FP

Symbol Parameter Test conditions

50

KARAOKE

Limits

Min Typ Max

SERIES

Unit

Gv

THD

Vomax

DIGITAL DELAY

No

Gain between input and output

Output distortion

Maximum output voltage

Output noise voltage

VOL=0dB

Td=10,15,20msec, 30kHz LPF

Td=30msec, 30kHz LPF Td=50msec, 30kHz LPF

Td=100msec, 30kHz LPF Td=150msec, 30kHz LPF

Td=200msec, 30kHz LPF 30kHz LPF, THD=10%

Td=10,15,20,30,50msec, Vi=0mVrms JIS-A

Td=100msec, Vi=0mVrms JIS-A

Td=130msec,150msec Vi=0mVrms ,JIS-A Td=200msec, Vi=0mVrms JIS-A

-3 0 +3

0.3

0.5

0.7

1.0

1.5

2.0

-92

-87

-85

-82

0.6

1.0

1.4

2.0

3.0

4.0

-80

-72

-70

-67

dB

%

Vrms0.7 1.0

dBV

Delay volume Gain=-∞

VOLATTmax

Maximum volume attenuation

Feed back volume Gain=-∞ Gv THD %

LINE

Vomax

input and output

Output distortion

Maximum output voltage

Gain between

No

Output noise voltage

30kHz LPF,upon key control through

30kHz LPF,THD=10% upon key control through JIS-A,upon key control through

MITSUBISHI ELECTRIC

-60

-40

-60

0.05

1.8

-95 -88

( / 36 )

9

-40

0.1

dB dB dB- 3 0 + 3

Vrms1.2

dBV

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

(Vcc=5V,f=1kHz,vi=100mVrms,F0,Ta=25°C Unless otherwise noted)

M65851FP

Symbol Parameter Test conditions

50

KARAOKE

Limits

Min Typ Max

SERIES

Unit

CS Zi

LINE

separation

Input impedance kΩ10 20

Vocal

Channel

Grej

GBBmax GBCmax

GTBmax

GTCmax

EQ;BASS,TREBLE

removal ratio

Maximum bass boost volume

Maximum bass cut volume

Maximum treble boost volume

Maximum treble cut volume

upon key control through Lin=400Hz, Rout JIS-A

f=100Hz f=100Hz

f=10kHz f=10kHz

40

18

9 12 15

-15 -12

-9

9 12 15

-15 -12 -9

dB-70 -50

dB14Vocal cut

dB

MITSUBISHI ELECTRIC

( / 36 )

10

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

FEATURES

M65851FP provides the following functions and can configurate all Karaoke functions with only a single chip.

Usable or not

Function Explanation Notes

Built in 16KSRAM

1 Digital echo

Digital key control

2

Digital

3

Surround

Delay time (changeable) 100ms,130ms150ms,200ms

Built in 16KSRAM

-8 ~ +8 17 steps

Built in 16KSRAM Digital Surround 10ms ~ 50ms 5 kinds

Key set mode

Switch with the Echo

not key set mode

At Key set mode Capable of use echo or surround Not key set mode Capable of use both echo and surround

50

KARAOKE

SERIES

Phase shifter

4

surround

Equalizer

5

Source selector

6

7

Scoring function

8

Help vocal function

Voice key control

9

Changeable the effect thanks to the external R

Bass/Treble

-12dB ~ +12dB/2dB 13 steps changeable

Provided all multiple voice soft, L,R,(L+R)/2, VOCAL CUT L-R(for Digital Surround) Key control bypass

Scoring the Mic vocal input

At the mic vocal is nothing , reference vocal is mixed output.

Input the mic voice to key control (change voice tone)

10 Music search Detect to line input level

Capable of use both key control and echo

Bass; Resonance type Treble ; Filter type

Compare the reference vocal and mic vocal frequency

At Key set mode capable to use voice key control or key control

At music input is nothing ,key control level is reset automatically

11

Others

MCU Inter face Current control type oscillation circuit Automatic mute Automatic reset

MITSUBISHI ELECTRIC

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11

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

50

KARAOKE

Delay Block

Delay Block provides a delay signal which using digital echo or digital surround.

1.Constitution

4700p

1000p

0.068µ

0.1µ 0.1µ

0.068µ

4700p

1000p

SERIES

INPUT

2.Function 1 Delay time

Capable to set the follow delay time;

52

+

50 49 48 47 46 45 44 43 42 41 40 3951

LPF

FEEDBACK VOLUME

ADC

DELAY

16Kbit RAM

DAC LPF

DLSW3

+

DLSW1

1

DLSW2

2

DELAY VOLUME

+

OUTPUT

Surround

2 Switch mode

Mode DLSW1

Echo

Surround

Mode Echo

Delay time

100,130,150,200msec

10,15,20,30,50msec

DLSW2

Echo"1"

1 2

ON

OFF

MITSUBISHI ELECTRIC

1 2

1

Set the echo volume using the delay volume(Change the delay signal gain) Echo"2" Set the microphone volume using the delay volume (Change the delay signal+input signal gain)

( / 36 )

12

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

M65851FP

50

KARAOKE

SERIES

Delay signal Mute

MUTE OFF

MUTE ON

3 Input/ output LPF Input/output LPF is formed following block.

4700pF

50

(41)

1

INPUT

Input/ output LPF

DLSW3

ON

OFF

1000pF

49

(40) (39)

48

OUTPUT

4 Volume

Volume

Delay volume

Feedback volume

2

Mode Echo

Surround

Switch conditions

1

2

Cut off frequency

3.0kHz

7.0kHz

Mode

+6dB ~ -12dB / 3dB step and -∞ 8 level

-2dB ~ -6dB / 1dB step and -8dB,-10dB,-∞ 8 level

MITSUBISHI ELECTRIC

( / 36 )

13

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

Key Control Block

It can be changed the key of KARAOKE accompaniment. And it can change a microphone voice which like a monkey voice. it also can use digital echo block at not key set mode.

1.Key control condition ,key control set mode or not

50

KARAOKE

SERIES

25

2.Constitution

INPUT

2.2µ

25 612

KCSEL

L

H

3300p

10k

4.7k

820p

13 14 15 16 17 18 20 21 9 8

LPF

0.047µ 0.068µ

ADC

Key control condition

Key control set mode Not key control set mode

0.068µ

19

DAC

0.047µ

3.9k

4700p

15k15k10k

1000p

560p

5.6k

1000p

2.7k

11 10

LPF HPF

1000p

OUTPU T

2.2µ

7

3.Function 1 Key change level

Key change level

(1step is half tone)

KEY CONTROL

VOL

+

16Kbit RAM

KEY UP

KEY DOWN

+8 +7 +6 +5 +4 +3 +2 +1 0 -1 -2 -3 -4 -5 -6 -7 -8

MITSUBISHI ELECTRIC

( / 36 )

14

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

SERIES

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

SERIES

50

KARAOKE

2 Volume It set the key control signal gain. +4dB~-6dB/2dB step and -10dB, -∞ 8 level

3 Key control level automatic reset When music search detects no signal ,key control level is automatic changed normal (0) level. (Provides ON/OFF switch with MCU interface)

4.Echo Block (using key control block) At not key control set mode,digital echo is able to use ,when the following block using.

INPUT

25

1.0µ Echo Feed

4700p

24k

2.2µ 24k

1000p

12 6

13 14 15 16 17

LPF

0.068µ

ADC

0.1µ

DELAY

back volume

0.1µ

18 20 21 9 8

0.068µ

19

24k

DAC

4700p

24k24k24k

1000p

LPF

VOL

24k

11 10

BUF

24k

+

OUTPUT

2.2µ

7

16Kbit RAM

Delay time 100msec,130msec,150msec,200msec Volume level +4~-6dB/2dB step and -10dB, -∞ 8 level (same as key control volume)

MITSUBISHI ELECTRIC

( / 36 )

15

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

Phase Shifter Block

Following is the phase shifter block, which makes phase surround effect.

20k

Lch INPUT

Phase Shifter

20k

20k 20k

Surround SW

R(internal)

SERIES

50

KARAOKE

Lch OUTPUT

Key control block output

Rch INPUT

Switch conditions

Surround SW ON

20k 20k

R=13kΩ R=16kΩ

R=20kΩ

73

C(external)=0.022µF

72

20k

Surround effect

Max Typ Min

20k

Rch OUTPUT

Surround SW OFF

MITSUBISHI ELECTRIC

Nothing

( / 36 )

16

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

Equalizer Block

Following is the equalizer block, which can control the both gain bass and treble.

Bass resonance block

Equalizer Block

R2

50

KARAOKE

SERIES

136k

71 70

(56)

1.8k

(57)

69

(58)

68

(59)

65

(62)

64

(63)

EQOUT

C3

R1

C1 C2

0.033µ

0.022µ 0.47µ

Bass block is resonance type which is used simulated inductor amplifier.Treble block is filter type. These can be set -12dB ~ +12dB/2dB step.

Following is a center frequency "fo" ,"Q" (bass resonance block).

fo = 1/(2π C1•C2•R1•R2) (Hz) Q = (C1•R2) / (C2•R1)

MITSUBISHI ELECTRIC

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17

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

50

KARAOKE

Vocal Cut Block

The sound components of the same phase and same sound volume in the L and R channels are attenuated. This made also allows components with lower frequency than the vocal band to pass through the filter, to compensate insufficient low-frequency sound.

vocal cut block

SERIES

20k 20k

Lch INPUT

R

20k

Rch INPUT

1

fvc=

2πCR

LPF is formed by the internal R (20kΩ) and the external C, when Where C=0.15µ F , cut off frequency is 53Hz .

vocal cut block

76

C

0.15É

20k

76

C

0.15µ

Vocal cut OUTPUT

20k

MITSUBISHI ELECTRIC

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18

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

Scoring Function

Scoring function judge the mic vocal input .

1.Scoring output form Mic input is judged from 0 to 99 level.

2.Constitution

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

M65851FP

50

KARAOKE

SERIES

Scoring function is constituted following two ways.

Judgment conditions Function Ratio

1 Compare the frequency

2 Vocal level judgment

Compare the frequency reference voice and microphone voice

Vocal level judgment (as vocal is bigger than reference level,judgment is good)

75%

25%

MITSUBISHI ELECTRIC

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19

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

SERIES

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

SERIES

50

KARAOKE

3.Music search Music search is constituted following .

1 Input signal reference level comparison 2 Music detection 3 No music detection

1 Input signal reference level comparison Input signal reference level comparison is comstituted amplifier and level comarison. When input signal is bigger than reference level,level comparison output the pulse which added internal clock.

Input signal

Clock signal

pulse output (after level detection)

Then reference level can be changed ,thanks to the following internal R2 and external R1 which determine the amplifier gain .

Lch

Level comparator

reference level

Internal resistance precision is about ±30%.

78

R1

MITSUBISHI ELECTRIC

R2=50kΩ

Gain Gv = (R1 + R2) / R1

20

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MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

SERIES

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

SERIES

50

KARAOKE

2 Music detection To search a music interval, it is necessary to judge if it is a music or not. This judgment is made by monitoring the 20 seconds and counting the pulse signal (after level detection). The pulse signal counts is bigger than fixed counts, it is judged as a music. Pulse counter is reset whenever monitor 20 seconds or judged no music decision.

about 20 sec

pulse output (after level detection)

Music decision

3 No music detection After Music decision ( 2 ), no music is judged when no pulse in level detection at 3 seconds.But if there isn't no pulse when monitoring the3 seconds, no music decision counter is reset .

about 3 sec

pulse output (after level detection)

No music decision

MITSUBISHI ELECTRIC

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21

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

SERIES

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

SERIES

50

KARAOKE

4.Signal input circuit Signal input circuit is constituted the following band pass filter, which cuts the input signal to vocal band width.

C1=0.15µF

80 1 2

(3)

(4)

C2=1500pF

(5)

R2=100kΩ

INPUT

R1=10kΩ

Low level cut off frequency fcl and High level cut off frequency fch is fcl= 1/2πC1R1 = 106 Hz fch = 1/2πC2R2 = 1.1kHz and , the gain of amplifier Gv is Gv = R2/R1 = 20 dB. Same as the band pass filter is constituted microphone signal input.

OUTPUT

Automatic Vocal Support

In case using the Karaoke system , when microphone input level is nothing , then audio source vocal appears and help the microphone songs. (It can set only following conditions , audio source selector sets Lch monaural or vocal cut)

Microphone input level Source selector mode

On

Off

Lch monaural vocal cut

(L+R)/2

Changing time from microphone input level changed to source selector changed is following . Attack time (Off On)0 sec Release time (On Off) 1sec or 2 sec

others

same as microphone input

MITSUBISHI ELECTRIC

22

( / 36 )

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

The timing of microphone input signal detection

M65851FP

50

KARAOKE

SERIES

Microphone input

level output

microphone signal detection

On

release time

OFF

attack time 0s

On

reference level

Following is the microphone input signal judgment block , which includes amplifier so reference level can regulate.

MIC

Level Comparator

Internal resistance precision is about ±30%.

79

R1

Gain Gv = (R1 + R2)/R1

MITSUBISHI ELECTRIC

R2=50kΩ

( / 36 )

23

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

SERIES

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

SERIES

50

KARAOKE

Oscillation Circuit

This IC incorporates a current control type clock oscillator circuit in it, thus providing circuit configuration just by connecting a R for current control pin 29 (CLKCNT). Fully internal clock supply prevents occurrence of undesired radiation without affecting any external circuit. The oscillator frequency fck is following.

fck = 8 MHz

Reset

This IC is automatically reset when the power is turned on , and is automatically canceled nearly 120msec later.

Function

Echo

Key control

Phase shifter

Equalizer Source selector Scoring function

Delay time

Stereo(Key control by pass)

First set

150msec

No changing

OFF OFF

OFF

MITSUBISHI ELECTRIC

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24

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

MCU Interface

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

M65851FP

50

KARAOKE

SERIES

1.Constitutions MCU interface is constituted serial bass interface , so the selection, data input or output , is changed by 36 pin input level .

W/RSEL

L

H

MCU IC(Data input)

IC MCU (Data output)

Conditions36

2.Data input (1)Data input format

D0

DATA

D1 D2 D3 D4 D5

D7 D8 D9 D10 D11 D12 D13 D14 D15

D6

MCU Interface circuit

32 33 34 35

DATA CLOCK

STROBE

MCU

REQ

36

W/RSEL

CLOCK

STROBE

(2)Mode creations D0~D1 select the following each block, and D2 ~ D13 create the particular setting. D14,D15 are chip address, so this IC can use only when D14="L"and D15="H".

D0 D1

L L

D2~D13

Echo/Surround mode

D14 D15

Chip addles

L H

Key control mode

L H

H L

H

Equalizer/Phase sifter mode

Line mixing/Others mode

MITSUBISHI ELECTRIC

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25

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

SERIES

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

1 Echo /Surround mode

D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15

M65851FP

SERIES

50

KARAOKE

L L

Echo/Surround Switch

Echo delay time

Surround delay time

Echo/ Surround

Parameter

Echo delay time

D2 D3 D4 D5LD6 D7

H --

--

-

--

-

Surround delay time

-

L

L H L ---

H

HLH

--

-

- - -

-

H L L L H L

H H L

delay volume

- -- -

-

Feed back volume

Echo Surround

L H

Function

On not key control set mode sets H level

100msec 130msec 150msec

200msec

10msec 15msec 20msec

-

- - -

-

L L H H L H

MITSUBISHI ELECTRIC

30msec 50msec

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26

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

M65851FP

50

KARAOKE

SERIES

Parameter

Delay volume

Feed back volume

D8 D9 D10 D11 D12 D13

H H H H H L

H L H H L L

L H H L H L

L L H L L L

- - -

-

- --

- - -

- --

-

- --

-

H H H H H L

H L H H L L

--

Function

+6dB +3dB

0dB

-3dB

-6dB

-9dB

-12dB

-∞

-2dB

-3dB

-4dB

-5dB

-

- --

2 Key control mode

D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15

L H Key change level

Auto Reset

VSC/ VMC

--

L H H L H L

L L H L L L

Key control volume

-6dB

-8dB

-10dB

-∞

Delay volume select

Delay signal mute

L

H

MITSUBISHI ELECTRIC

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27

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

D2

Parameter

D3 D4 D5

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

M65851FP

D6 D7

D8

Function

50

KARAOKE

SERIES

Automatic key control reset

Key control mode selector

Key change level

L H

-

- - -

-

- - -

L

- - -

H

- - -

H H L

H L H

-

H L H H L L

H L L

-

L L L

-

- -

L L

H H H L

L H L L

H H H L

L H L L

automatic reset OFF automatic reset ON

VMC mode

VSC mode

+8 +7

+6

+5 +4 +3

+2 +1

0

-

L L L

-

L L L L L L

L L H

-

L L H L L H

L L H

L H L L L

-

MITSUBISHI ELECTRIC

L H

H L H H

L L L H

H L H H

-1

-2

-3

-4

-5

-6

-7

-8

( / 36 )

28

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

M65851FP

50

KARAOKE

SERIES

Parameter Function

D9 D10

D11

H H H H H L

Key control volume set (when not key control mode, it use a echo volume)

H L H H L L

L H H L H L

L L H L L L

Parameter Function

Delay volume selector

D12 D13

L

H

-

Using an echo volume

Using a microphone volume

+4dB +2dB

0dB

-2dB

-4dB

-6dB

-10dB

-∞

Delay signal mute

-

3 Equalizer/Phase shifter mode

D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15

H L

automatic vocal support

Phase shifter

L

H

Equalizer

treble

Mute OFF

Mute ON

Equalizer

bass

L

H

MITSUBISHI ELECTRIC

29

( / 36 )

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

M65851FP

50

KARAOKE

SERIES

Parameter Function

Automatic vocal support (It can use only echo mode)

Phase shifter surround mode

Equalizer treble mode

D6 D7 D8

D9

D2

D3 D4

L

-

H

-

L

-

H

- -

Volume(dB)

D5

-

--

- -

L

H

L

H

L

H H

-

Release time 1sec

Release time 2sec

Surround effect Minimum Surround effect Typical

Surround effect Maximum

D10 D11 D12

OFF

ON

OFF

Equalizer bass mode

D13

Volume(dB)

H H H H H L

H H L H L H

H L H H L L +2

L L L 0 L L L -2 L L H -4 L L H -6

L H L -8 L H L -10

L

H

L

H

L

H

L

H

L

H

L

HL H L H

+12 +10

+8 +6

+4

H H H H H L

H H L H L H

H L H H L L +2

L L L 0 L L L -2 L L H -4 L L H -6

L H L -8 L H L -10

L H

L H L H

L HL H L H

+12 +10

+8 +6

+4

L H H -12LL H

MITSUBISHI ELECTRIC

L H H -12LL H

( / 36 )

30

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

SERIES

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

4 Line mixing/Others mode

D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15

M65851FP

SERIES

50

KARAOKE

H H L

Parameter

Source selector

Key control by pass

Source selector

Key control by pass

D2 D3 D4 D5 D6

L L

L H H L

H

- -

H

Key control mixing

L

H

-

Delay mixing

- -

-

L

H

Voice

Scoring function

Function

Delay block input L-R

Stereo

-

Lch monaural

-

Rch monaural

-

Vocal cut

-

By pass OFF(Though the key control circuit) By pass ON(By pass the key control circuit)

-

Delay block input (L+R)/2

key control

H

Key control mixing ON/OFF Selector

- - -

Relationships source selector and key control by pass mode

D2 D3

L

L H H L

H

L

H

Key control mixing by pass ON

Stereo

Lch monaural Rch monaural

Vocal cut

L

-

Key control mixing by pass OFF

Lch monaural Rch monaural

Vocal cut

Mixing OFF(SSSW10="2")

H

Mixing ON(SSSW10="1")

(L+R)/2

MITSUBISHI ELECTRIC

31

( / 36 )

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

M65851FP

50

KARAOKE

SERIES

Parameter

Delay signal mixing ON/OFF Selector

Scoring function

Voice key control

D7 D8 D9 D10 D11

L

-

L

H

-

- -

-

- - -

-

- --

- - -

L

H

- -

-

L

-

H

-

--

-

L

H

-

D12

-

- -

L H

-

D13

Mixing OFF

-

L OFF

H

Mixing ON(L,R same phase)

Mixing ON(L,R reverse phase)

Scoring function OFF Scoring function ON

Score output after no music decision

Score can output always timing

Internal music detection decides the scoring start/stop timing

MCU data decides the scoring start/stop timing

ON

Function

*

Scoring stop

Scoring start

* Scoring function start /stop mode 1 Decide the internal music detection (D11="L")

2 Decide the MCU data(D11="H") When D12 is "L" level scoring is stopping ,and change "H" level, scoring is start until D12 changes "L"level.

MITSUBISHI ELECTRIC

32

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MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

SERIES

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

SERIES

50

KARAOKE

3.Data output(Score result output) (1)Internal music detection decides the scoring output timing When Karaoke song is over and then music detection judgment the no music detection, scoring is over and output the "H" pulse to REQ. After REQ is "H" level and then W/RSEL changes from "L" to "H",this IC changes a output mode and it can output the score result.

Music interval decision

Line input

Music decision

REQ

(output)

W/RSEL

(input)

CLOCK

(input)

DATA

(output)

D0

D1 D2 D13 D14 D15

(2)MCU data decides the scoring result data output timing W/RSEL changes from"L"to "H",so this IC changes output mode ,and then score result data can output the same period of the clock .

Line input

Music decision

W/RSEL

(input)

CLOCK

(input)

DATA

(output)

D0

(3)Data format

D0 D1 D2 D3 D4 D5 D6 D7

D8 : Music interval decision music decision="H", music interval decision="L" D9~D15 : Score result output D9 D10 D11 D12 D13 D14 D15 an exampleÅ@78 points H L L H H H L

D1 D2 D13 D14 D15

D8

Music interval decision

MITSUBISHI ELECTRIC

D9 D10 D11 D12 D13 D14 D15

(MSB) (LSB)

Score result output (binary output)

33

( / 36 )

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

SERIES

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

SERIES

50

KARAOKE

Caution

1.Input/output signal level When using phase shifter, echo mixing and equalizer ,this IC is limited the following functions.So,please determine the revel of the each functions.

Input base level

150mVrms 0dB

Equalizer gain mode

Head room S/N

10.6dB

78.5dB

100mVrms +6dB 8.1dB 75dB

100mVrms +12dB 2.1dB 75dB

50mVrms

+12dB 8.1dB

69dB

2.Improvement of head room As stated above, equalizer gain level is bigger, head room becomes also nallow. So It can be Improvement that latest opeamp which using equalizer use external opeamp.

EQIN

136k

(56)

71

0.022µ

1.8k

Bass Treble

70

(57)

0.47µ

69

(58)

Equalizer

(59)

68

0.033µ

MITSUBISHI ELECTRIC

1.0µ

150k

Vcc2

2

67

(60)

66

M5218AP

(61)

Analog high voltage Vcc2

65

(62)

64

(63)

( / 36 )

34

OUTPUT

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

M65851FP

Following the relations supply voltage, input signal level ,head room and S/N. (external opamp ;M5218AP)

50

KARAOKE

SERIES

Vcc2

9V

15V

20V

Input level

150mVrms

100mVrms

150mVrms

100mVrms

150mVrms

100mVrms

Equalizer gain level

+6dB

Head room

8.1dB 78.5dB

S/N

+12dB 2.1dB 78.5dB

+6dB 11.6dB

+12dB

+6dB

5.6dB

10.6dB

(effect M65851FP)

75dB

78.5dB

+12dB 8.1dB 78.5dB

+6dB

+12dB 11.6dB

+12dB +12dB

14.1dB

(effect M65851FP)

10.6dB

(effect M65851FP)

14.1dB

(effect M65851FP)

75dB

78.5dB 75dB

MITSUBISHI ELECTRIC

( / 36 )

35

MITSUBISHI SEMICONDUCTORS (SOUND PROCDSSOR ICs)

PRELIMINARY

Notice ; This is not a final specification.

M65851FP

50

KARAOKE

some parametric limits are subject to change.

APPLICATION EXAMPLE

0.15µ

1500p

0.15µ

1500p

2.2µ

4700p

3300p

10k

15k

560p

3.9k

1000p

5.6k 1000p

1000p

10k

4.7k

0.047µ

0.068µ

820p

10

27k

11

12

2.2µ

13

14

15

16 17

18

19

1

2

3

4

5

6

7

8

9

1µ

10k 10k

80

BPF1

Gain Gain

BPF2

VOL

LPF

HPF

LPF

ADC

DAC

79

78

MICin

1µ

77

SCORE

KEYCON

Lin Rin

1.0µ

0.15µ

76 75 74

L RMIC

1.0µ

73

SOURCE SELECTOR

DELAY

16Kbit SRAM

LOGIC

0.022µ

72

0.022µ

70 69

71

PHASE SHIFTER

16Kbit SRAM

0.47µ

Equalizer

0.033µ

68

67 66 65

D.VOL

Equalizer

VCC

GND

F.VOL

LPF

ADC

0.047µ

20

21

15k

22

47µ

GND

23

VCCREF

24 41

100µ 0.1µ 4700p

25 26 27

KARAOKE SCOREING

CLOCK

28

VDD

29 30

GND

31

32

MCU

INTERFACE

33 34

35 36

AUTO RESET

TEST

37 38

DAC

LPF

39 40

64

63

62

61

60

0.033µ

59

58

57

56

0.1µ

55

54

53

52

51

50

49

48

47

46

45

44

43

42

SERIES

2.2µ

0.1µ

Lout Rout

0.47µ

0.022µ

100µ

1.0µ

4700p

1000p

0.068µ

11k

0.1µ

DATA

MITSUBISHI ELECTRIC

STROBE W/RSEL

CLOCK

REQ

1000p

( / 36 )

36

Mitsubishi M65851FP Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual