Voice Recording IC ISD1820py DIP14

The

ISD1820py

is

a

Sound

IC

which

features

a

single

chip

audio

message

recording

and

playback

facility

class='font-size-24

mb-3'>Features: It

Can

be

operated

with

DC

2.4V

to

5.5V Includes

an

internal

audio

amplifier

circuitry

capable

of

handling

an

8-ohm

½

watt

speaker

directly

at

its

output. Works

with

a

standard

electret

MIC

as

the

input

audio

or

voice

detector. The

maximum

recording

an

playback

time

available

from

this

chip

is

up

to

20

seconds. It

is

able

to

retain

the

audio

message

in

it

infinitely

even

while

the

chip

in

the

un-powered

state. The

recording-playback

and

erase

cycles

can

be

implemented

as

many

as

100,000

times

without

any

form

of

degradation High-quality

voice

reproduction class='font-size-24

mb-3'>Pins

Configuration:

ISD1820py

Circuit

Diagram

and

its

Pinout

Functions:

Pin#1

can

be

seen

as

the

REC

(recording)

input

pinout,

which

accepts

a

positive

signal

for

enabling

the

recording

function,

meaning

this

pinout

must

be

connected

to

the

Vcc

or

the

positive

line

while

recording

an

audio

clip.

if

any

of

the

PLAY

buttons

were

pressed,

and

simultaneously

REC

was

pressed,

in

such

case

the

recording

(REC)

will

be

immediately

initiated

terminating

the

PLAY

action.

The

voice

recording

action

can

be

stopped

as

soon

the

relevant

button

is

switched

OFF,

and

the

REC

pinout

is

rendered

at

LOW.

In

this

position

an

internal

EOM

or

end

of

message

prompt

is

triggered

internally,

causing

the

PLAYBACK

mode

to

get

in

the

ready

position.

This

also

causes

the

chip

to

go

into

a

power-down

condition

or

in

the

standby

condition.

PLAY

pinouts:

As

can

be

noticed

in

the

diagram,

the

IC

facilitates

two

PLAY

pinouts,

which

are

PLAYE,

and

PLAYL.

PLAYE

allows

a

logic

edge

activated

triggering,

while

PLAYL

facilitates

a

logic-level

activated

triggering

of

the

playback.

In

the

PLAY

E

or

edge

activated

mode,

a

single

press,

and

release

or

a

momentary

press

of

the

button

will

initiate

the

playback

of

the

recorded

clipping

through

the

speaker

and

will

end

as

soon

as

the

internal

EOM

(end

of

message)

signal

gets

activated.

The

PLAY

L

mode

is

activated

when

the

attached

button

is

pressed

and

held

pressed

without

releasing

it.

The

audio

playback

now

continues

as

long

as

the

button

remains

depressed,

or

as

soon

as

the

internal

EOM

is

activated.

Keeping

the

button

permanently

pressed

will

cause

a

higher

current

consumption

of

the

IC.

Other

than

the

REC

and

the

PLAY

buttons,

this

audio

record/playback

circuit

additionally

possesses

a

couple

of

switches

associated

with

the

chip

in

the

form

of

SW1

and

SW2.

SW1

is

positioned

for

the

“Feed

Through”

action

while

SW2

for

the

“REPEAT”

functioning.

Let’s

understand

them

in

detail.

As

may

be

witnessed,

the

SW1

is

configured

with

the

“FT”

pinout

of

the

IC

which

refers

to

“Feed

Through”.

When

actuated

in

the

feed-through

mode,

the

signal

across

MIC

and

the

MIC_REF

pinouts

are

bypassed

through

the

AGC

pinout

of

the

IC,

up

to

the

filter

driver

stage

and

finally

reaching

the

speaker

points

(SP+

and

SP-)

The

FT

input

signal

is

responsible

for

controlling

the

feed-through

mode

of

the

chip.

In

order

to

be

initiated

the

feed-through

mode,

the

pinout

FT

is

held

at

the

positive

Vcc

logic,

while

the

REC

and

the

PLAY

buttons

are

at

low

logic

or

with

their

buttons

in

the

deactivated

positions.

SW2

is

used

for

enabling

the

REPEAT

mode,

which

implies

that

when

this

switch

is

toggled

ON

the

playback

goes

on

repeating

the

recorded

message

clip

through

the

speaker

non-stop

until

the

switch

is

toggled

OFF.

Buy

Voice

Recording

IC

ISD1820py

DIP14

at

Pakistan's

Best

Online

Store

at

cheap

price.

Here

you

get

the

ISD1820py

module

too.

We

Deliver

in

Gujranwala,

Karachi,

Lahore,

Islamabad,

Rawalpindi,

Multan,

Quetta,

Faisalabad

and

all

Over

Pakistan

Package

Include:

1x

Voice

Recording

IC

ISD1820py

DIP14

• SKU: RAWLIXVoi
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• Category: Semiconductor Components & ICs
• /
• Tags: Voice Recording IC ISD1820py DIP14