Datasheet M65831AP, M65831AFP Datasheet (Mitsubishi)

MITSUBISHI SOUND PROCESSOR ICS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

DIGITAL ECHO (DIGITAL DELAY)

M65831AP/FP

DESCRIPTION

The M65831A is an IC developed for producing echo effects added to voice signals
picked up by microphone for karaoke applications.
The IC has the largest memory among the digital delay series. As it’s design is aimed
at high performance, it is best suited to provide radio cassette tape recorders and
miniature unit audio system with quality echo function.
Being pin compatible with the M65830CP / FP and M65843AP / FP, the M65831AP / FP is
suitable for upgrading the series.

Outline

FEATURES

•Built-in input / output filters, A-D and D-A conver ters, and
memory realize a delay system with only a single chip

•Capable of composing low-noise and low-distortion delay
system at low cost by ADM system
(No=-92dB typ, THD=0.5% typ)

•Control mode selections available from 2 kinds : easy mode
using parallel data and microcomputer mode using serial
data

•Sleep mode can be selected to stop IC functions

•Built-in automatic reset circuit

Outline 24P4 (AP)

2.54mm pitch 600mil DIP
(13.0mm X 31.1mm X 3.8mm)

RECOMMENDED OPERATING CONDITIONS

Supply voltage range VCC,VDD=4.5 to 5.5V
Rated supply voltage

VCC,VDD=5.0V

SYSTEM CONFIGURATION

RAM

HPF

LPF

HPF

VISS

MIC VOL

KEY CONTROL

M65381AP/FP

CTL

NORM

MIC1

L

VOCAL
CUT

R

SEARCH

MIC AMP

Outline 24P2W-A(AFP)

1.27mm pitch 450mil SOP
(8.4mm X15.0mm X2.0mm)

MIX

MIX

BASS

BASS

MIXMIX

MIX

MIX

L

R

VISS

MIC2 ECHO ECHO VOL

MIC AMP

MIC VOL

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MITSUBISHI SOUND PROCESSOR ICS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

DIGITAL ECHO (DIGITAL DELAY)

Pin Configuration

VDD

XIN

XOUT

D1/REQ

D2/SCK

1
2
3
4
5

M65831AP/FP

24
23
22

M65831AP/FP

21
20

Vcc

LPF1 IN
LPF1 OUT

OP1 OUT

OP1 IN

D3/DATA

D4/IDSW

TEST

EASY/µ -COM

SLEEP

D-GND
A-GND

6
7
8

9
10
11
12

19
18
17
16
15
14
13

REF

CC1

CC2
OP2 IN

OP2 OUT
LPF2 IN

LPF2 OUT

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MITSUBISHI SOUND PROCESSOR ICS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

DIGITAL ECHO (DIGITAL DELAY)

BLOCK DIAGRAM

OP1
OUT

21 20 18 17 16 15 14 13

4.7k

OP1

D1

MAIN CONTROL

REF

19

LPF1
IN

23

1/2 Vcc

AUTO
RESET

LPF1

LPF1
OUT

22

COMP

RESET
CLOCK

OP1
IN

DELC

M65831AP/FP

CC1

MOD DEM

DO0 DO1

CC2

OP2
IN

MO

MI

4.7k

OP2

OP2
OUT

LPF2
IN

LPF2

48K-bit
SRAM

LPF2
OUT

OSCILLATOR

2

XIN

XOUT

DELAY TIME
CONTROL

43

D1/REQ

6

5

D3/DATA

7

D4/IDSWD2/SCK

9

8

TEST

EASY/µ -COM

SLEEP

D-GND A-GND

VDD Vcc

241121110

Unit Resistance:Ω

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3

MITSUBISHI SOUND PROCESSOR ICS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

DIGITAL ECHO (DIGITAL DELAY)

PIN DESCRIPTION

No.

1

2
3

4

5

6

Symbol

VDD
XIN

XOUT
D1/REQ

D2/SCK

D3/DATA

Digital VDD
Oscillator input

Oscillator output
Delay1/Request

Delay2/Shift clock

Delay3/Serial data

Name

M65831AP/FP

I/O

I

O

I
I

I

Supply voltage

Connects to 2MHz ceramic filter
Easy mode:inputs D1 data

µ -COM mode:inputs request data
Easy mode:inputs D2 data

µ -COM mode:inputs shift clock
Easy mode:inputs D3 data

µ -COM mode:inputs serial data

Function

7

8

9

10

11
12
13
14
15
16
17
18

19

20
21
22
23

24

D4/IDSW

TEST
EASY/ µ -COM

SLEEP

D GND
A GND

LPF2 OUT

LPF2 IN

OP2 OUT
OP2 IN
CC2

CC1

REF
OP1 IN
OP1 OUT

LPF1 OUT

LPF1 IN

VCC

Delay4/ID switch

Test

Easy/ µ -COM

Sleep

Digital GND
Analog GND
Low pass filter2 output
Low pass filter2 input
OP-AMP2 output
OP-AMP2 input
Current control 2
Current control 1
Reference
OP-AMP1 input
OP-AMP1 output
Low pass filter1 output
Low pass filter1 input
Analog VCC

Easy mode:inputs D4 data

I

µ -COM mode:controls ID code

L=normal mode

I

H=easy mode

I

L=µ -COM mode
H=sleep mode

I

L=normal mode

Connects to analog GND at one point

Connects to analog GND

O

Forms low pass filter with external C.R

I

O

Forms integrator with external C.R

I

=1/2VCC

I

Forms integrator with external C.R

O
O

Forms low pass filter with external C.R

I

Supply voltage

MITSUBISHI

ELECTRIC

4

MITSUBISHI SOUND PROCESSOR ICS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

DIGITAL ECHO (DIGITAL DELAY)

M65831AP/FP

ABSOLUTE MAXIMUM RATINGS

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

Symbol Parameter Conditions Ratings

Vcc

Icc

Pd

Topr

Tstg

Supply voltage
Circuit cuurent

Power dissipation

Operating temperature
Storage temperature

M65831AP
M65831AFP

THERMAL DERATING

(MAXIMUM RATING)

1000

AP

-20~+75

-40~+125

6.5
100

650

Units

V

mA

W1

mW

°C
°C

800

AFP

650

600

400

325

200

0

POWER DISSIPATION Pd (mW)

0 25 50 75 100 125

AMBIENT TEMPERATURE Ta (°C )

RECOMMENDED OPERATING CONDITIONS

Symbol

Vcc

VDD

Vcc-VDD

Parameter

Supply voltage
Supply voltage

Difference voltage

Conditions

Min

4.5

4.5 5

-0.3 0 0.3

Limits

Typ

5

Max

5.5

5.5

Units

V

V

V

fck
VIH

VIL

Clock frequency

High input voltage

Low input voltage

MITSUBISHI

ELECTRIC

5

1

0.7VDD

0

2

3

VDD

0.3VDD

MHz

V

V

MITSUBISHI SOUND PROCESSOR ICS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

DIGITAL ECHO (DIGITAL DELAY)

M65831AP/FP

ELECTRICAL CHARACTERISTICS

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

Symbol Parameter

Icc
Gv

Vomax

THD

No

SVRR

TMUTE

Iccs

Circuit current

Voltage gain

Maximum output voltage

Output distortion

Output noise voltage

Supply voltage rejection
ratio

Mute time

Circuit current
(Sleep mode)

Test conditions

No signal

RL=47kΩ

THD=10%

fs=500kHz

30kHz LPF

fs=250kHz

DIN-AUDIO

(fs=250kHz)
∆Vcc=-20dBV,f=100Hz
Upon changing Delay

Time
Upon canceling Sleep

Mode

Sleep Mode

Min Typ Max

-3.5

0.7

508

508

Limits

18.0 40.0

-0.5
1

0.3

0.5

-92

-40

528
528

14.0

2.5

1.0

1.5

-75

-25

548
548

30.0

Units

mA

dB

Vrms

%

dBV

dB

ms

mA

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6

MITSUBISHI SOUND PROCESSOR ICS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

DIGITAL ECHO (DIGITAL DELAY)

OPERATION

1) DELAY TIME

D4

D3 D2

L

L

H

L

L

H

H

D1 fs

L

H

L

H

500

L

H

L

H

M65831AP/FP

Td

12.3

24.6

36.9

49.2

61.4

73.7

86.0

98.3

L

L

H

H

L

H

H

fs=sampling frequency(kHz)
Td=delay time(msec)

L

H

L

H

L

H

L

H

110.6

122.9

135.2

147.5

250

159.7

172.0

184.3

196.6

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ELECTRIC

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MITSUBISHI SOUND PROCESSOR ICS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

2) EASY MODE(EASY / µ -COM=H)
D1,D2,D3,D4 and sleep are for easy mode

D1
D2
D3
D4
SLEEP

3) µ -COM MODE(EASY / µ -COM=L)

REQ

DIGITAL ECHO (DIGITAL DELAY)

delay time

M65831AP/FP

cf 11-1)

cf 11-5)

SCK

DATA

SLEEP

D1 D2 D3

D4

DELAY TIME cf 11-1)

H=SLEEP MODE cf 11-5)

MUTE

ID1 ID2 ID3

ID4

ID CODES

H=MUTE cf 11-4)

TIMING DIAGRAM

This Timing chart shows that delay time is set by serial data from µ -COM.

DATA signal is latched at the falling edge of SCK signal,the last ten data are set at
the rising edge of REQ signal when ID codes are satisfied.
ID1,ID3:L
ID2 :H
ID4 :equal to IDSW

*

*

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MITSUBISHI SOUND PROCESSOR ICS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

REQ,SCK,DATA INPUT TIMING

REQ

SCK

DATA

SLEEP

DIGITAL ECHO (DIGITAL DELAY)

t1

ds

D1 D2 D3

D4

M65831AP/FP

t5

MUTE

ID1 ID2 ID3

t4

t2 t3

ID4

Symbol

t1

ds

t2
t3

t4
t5

Parameter

SCK pulse width

SCK pulse duty
DATA setup time

DATA hold time
REQ hold time

REQ pulse width

min typ max Units

250

100
100

100
250

50

t1/2

t1/2

nsec

%

nsec

nsec

nsec
nsec

MITSUBISHI

ELECTRIC

9

MITSUBISHI SOUND PROCESSOR ICS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

4) MUTING
(1)Easy mode

Automatic mute upon changing delay time,cancelling SLEEP mode
and power-on.

(2)µ -COM mode
MUTE=H:mute
MUTE=L:automatic mute

AUTOMATIC MUTE

DIGITAL ECHO (DIGITAL DELAY)

DELAY SIGNAL BEFORE
CHANGE MODE

M65831AP/FP

DELAY SIGNAL AFTER
CHANGE MODE

MUTE TIME

(a) UPON CHANGING DELAY TIME

DELAY SIGNAL

MUTE TIME

CANCEL
SLEEP MODE

(b) UPON CANCELLING SLEEP MODE

DELAY SIGNAL

120msec

POWER ON

MUTE TIME

(c) UPON POWER-ON

MITSUBISHI

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10

MITSUBISHI SOUND PROCESSOR ICS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

5) SLEEP MODE
SLEEP data is
H:clock and RAM stop to reduce circuit current (SLEEP mode)

L:normal operation

6) SYSTEM RESET
Automatically reset power-on. The reset time is about

120msec.
Delay time is set at 147.5msec.

DIGITAL ECHO (DIGITAL DELAY)

M65831AP/FP

MITSUBISHI

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11

MITSUBISHI SOUND PROCESSOR ICS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

Vo

15k

15k

2.7k

1µ

0.1µ

47k

10k

560p

30

0.1µ

0.01µ

5600p

DIGITAL ECHO (DIGITAL DELAY)

TEST CIRCUIT

131415

4.7k

1617

DEM

LPF2

OP2

M65831AP/FP

12

11

10

98

48K-bit

SRAM

MI

MO

ANG.GND

DIG.GND

GND

VDD

1

21

1

S30

Vi

1µ

50

2

15k

5600p

0.1µ

15k

10k

0.1µ

47µ

0.1µ

100µ

30

560p

A

18

19

20

21

22

2324

1

S24

4.7k

VCC

2

MOD

OP1

LPF1

1/2 Vcc

COMP

DO0 DO1

DELC

MAIN CONTROL

DELAY TIME

D1

CLK

RESET

AUTO

RESET

CONTROL

OSCILLATOR

VDD

S7 S10

7

65

4

2

1

S6

2

1

S5

2

1

S4

2

100p

3

1M

2MHz

21

100p

0.1µ

Vcc

MITSUBISHI

ELECTRIC

12

Units : Resistance Ω

Capacitance F

MITSUBISHI SOUND PROCESSOR ICS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

DIGITAL ECHO (DIGITAL DELAY)

TEST METHODS

Switch condition

No

1

2

3

4

5

6

Parameter

Current circuit
Voltage gain

Delay time

Output voltage
(max)

Total harmonic
distortion

Output noise
voltage

Sampling
frequency

500kHz
250kHz

500kHz

250kHz

500kHz

250kHz
500kHz

250kHz

250kHz

Vomax 1

Vomax 2

Symbol

Icc
Gv1
Gv2
Tda
Tdb
Tdc
Tdd
Tde

Tdf
Tdg
Tdh

Tdi

Tdj
Tdk

Tdl

Tdm

Tdn
Tdo
Tdp

THD 1
THD 2

No

M65831AP/FP

S4S5S6S7S10S24S

30

1 1 1 1 1 2 2

1

* * *
* * *

1 1 1

1

1

2
1 1 1

2
2 2
1

1 1
2
1
2
1 1
2
1

1 1
2

1

22

1

2

2

2

2

1

1

1

1

2

1

2

2 2

1

1
1

2

2

222

* * *

* *

*

* * *
* * *

* * *

1 1 1

2

1 1 1

1 1 1

1
1

1
1

1
2
2
2
2

222
2

1

2

1 1 1

1

1 1 1

2

1 1 1

1

1

2

1

2

1 1

1 1
1 1

* 1 or 2

notes

No signal

cf. 11-1)

30kHz L.P.F.
THD=10%

30kHz L.P.F.

DIN AUDIO
Vi=0mVrms

Supply voltage

7

rejection ratio
Mute time

8

SVRR

MUTE T
MUTE S

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13

* * *

2

* *

1

* * * *

1 1

*

1

2
1

1 1
1 1

*

∆Vcc=-20dBv,

2

f=100Hz

Upon changing Delay Time
Upon cancelling Sleep Mode

MITSUBISHI SOUND PROCESSOR ICS

PRELIMINARY

Notice ; This is not a final specification.

some parametric limits are subject to change.

DIGITAL ECHO (DIGITAL DELAY)

APPLICATION EXAMPLE

1.EASY MODE

IN

1µ

5600p

10k

Vcc

VDD

15k

15k

560p

LPF1 IN

XIN

1 2 3 4 5 6 7 8 9 10 11 12

1M

1µ

non-porlar

LPF1 OUT

XOUT

30k

0.1µ

30

OP1 IN

OP1 OUT

D1

D2

REF

D3

0.01µ

CC1

D4

M65831AP/FP

3k

5600p

30

15k

10k

LPF2 IN

OP2 OUT

SLEEP

DGND

15k

560p

1µ

131415161718192021222324

LPF2 OUT

AGND

0.1µ 0.1µ 47µ

CC2

TEST

0.1µ

OP2 IN

EASY/µ-COM

2.7k

0.01µ

OUT

100µ

0.1µ

2.µ -COM MODE

IN

1µ

24

SLEEP SW

0.1µ

30

15

16

OP2 IN

EASY/ µ -COM

5600p

15k

10k

560p

14

LPF2 IN

OP2 OUT

SLEEP

DGND

15k

13

100p

5600p

10k

Vcc

VDD

2MHz

15k

15k

560p

23

LPF1 IN

XIN

100p

SETTING DELAY TIME

1µ

non-porlar

22

LPF1 OUT

XOUT

30k

0.1µ

30

21

OP1 OUT

REQ

1920

OP1 IN

SCK

REF

DATA

0.01µ

18

CC1

IDSW

3k

0.1µ 0.1µ 47µ

17

CC2

TEST

1 2 3 4 5 6 7 8 9 10 11 12

1M

2.7k

1µ

LPF2 OUT

AGND

0.01µ

OUT

100µ

0.1µ

100p

2MHz

100p

µ -COM

SLEEP SW

Units Resistance Ω
Capacitance F

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