Mitsubishi M65831AP, M65831AFP Datasheet

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

MITSUBISHI

ELECTRIC

1

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

MITSUBISHI

ELECTRIC

2

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

MITSUBISHI

ELECTRIC

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

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ELECTRIC

5

1

0.7VDD

0

2

3

VDD

0.3VDD

MHz

V

V