
Semiconductor ICs
Voice Recording IC ISD1820py DIP14
Condition: New
Availability:
Out Of Stock
Advance Payment Only
SKU: RAWLIXVoi
Rs.200
Rs. 250
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
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