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ISD2500
Series
Product
Brief
Single-Chip Voice Record/Playback Devices
32-, 40-, 48-, 64-, 60-, 75-, 90- and 120-Second Durations
T
he ISD2500 ChipCorder
®
Series provides high-
storage. This unique, single-chip solution is made
possible through ISD’s patented multilevel storage
technology. Voice and audio signals are stored directly
into memory in their natural form, providing high-
quality, solid-state voice reproduction.
quality, single-chip record/playback solutions for
32- to 120-second messaging applications. The
CMOS devices include an on-chip oscillator,
microphone preamplifier, automatic gain control,
antialiasing filter, smoothing filter, speaker
amplifier and high density multilevel storage
array. In addition, the ISD2500 is micro-
controller compatible, allowing complex
messaging and addressing to be achieved.
Recordings are stored in on-chip nonvolatile
memory cells, providing zero-power message
F E AT U R E S
ISD2500 SERIES CAN BE USED IN VARIOUS APPLICATIONS:
• Personal message recorders
• Medical applications
• Caller ID systems
• Point of sale displays
• Announcement systems
• Toys
• Pagers
• Car stereos
• Security systems
•
Easy-to-use single-chip voice record/playback
solution
•
High-quality, natural voice/audio reproduction
•
Manual switch or microcontroller compatible
playback can be edge- or level-activated
•
Single-chip durations of 32, 40, 48, 64, 60, 75, 90,
and 120 seconds
•
Directly cascadable for longer durations
•
Automatic Power-Down (Push-Button Mode)
•
Standby current 1µA (typical)
•
Zero-power message storage
•
Eliminates battery backup circuits
•
Fully addressable to handle multiple messages
•
100-year message retention (typical)
•
100,000 record cycles (typical)
•
On-chip clock source
•
Programmer support for play-only applications
•
Single +5 volt power supply
•
Available in die form, PDIP, SOIC and TSOP
packaging
•
Industrial temperature (– 40°C to +85°C)
versions available
I S D 2 5 0 0
S E R I E S
B L O C K
D I A G R A M
Internal Clock
XCLK
Timing
Sampling Clock
ANA IN
ANA OUT
MIC
Pre
Amp
Amp
5-Pole Active
Antialiasing Filter
Decoders
Analog Transceivers
256K / 480K Cell
Nonvolatile
Multilevel
Storage Array
5-Pole Active
Smoothing Filter
SP+
MIC REF
AGC
Automatic
Gain Control
(AGC)
Mux
Amp
SP–
Power Conditioning
Address Buffers
Device Control
V
CCA
V
SSA
V
SSD
V
CCD
A0 A1 A2 A3 A4 A5 A6 A7 A8
PD
OVF P/R
CE
EOM
AUX IN
ISD2500
Single-Chip Voice Record/Playback Devices
32-, 40-, 48-, 64-, 60-, 75-, 90- and 120-Second Durations
I S D 2 5 0 0
S E R I E S
A P P L I C AT I O N
E X A M P L E
V
CC
1
V
CC
V
SS
2
3
4
R4
100 KΩ
5
6
7
8
POWER DOWN
9
10
23
PLAYBACK / REC
24
27
25
22
26
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
CE
PD
P/R
EOM
OVF
XCLK
ANA OUT
MIC REF
MIC
AGC
V
SSD
V
SSA
SP+
SP–
AUX IN
ANA IN
12
13
14
15
11
20
21
18
17
19
V
CC
C1
0.1µF
R6
5.1 KΩ
C3
0.1µF
16Ω
SPEAKER
V
CCD
V
CCA
28
16
C6
0.1µF
C7
0.1µF
C8
22µF
CHIP ENABLE
ISD2500
C5
0.1µF
R2
470 KΩ
R1
1 KΩ
C2
4.7µF
R3
10 KΩ
ELECTRET
MICROPHONE
R5
10 KΩ
C4
220µF
I S D 2 5 0 0
S E R I E S
PA C K A G E
A N D
T E M P E R AT U R E
A V A I L A B I L I T Y
I S D2 5 4 8 (4 8 Se co n ds )
TSOP
PDI P
S OI C
DI E
IS D25 64 (6 4 S ec on ds )
T SOP
PDI P
S OI C
DI E
ISD 253 2 (32 S e c o n d s )
T SO P
P D IP
SOIC
DIE
IS D 2 5 4 0 ( 4 0 S e c o n d s )
TSOP
P DI P
S OI C
DIE
Commercial Die
(0° to +50°)
Commercial Packaged
(0° to +70°)
Industrial
(–40° to +85°)
T SO P
•
•
•
P D IP
•
•
•
•
•
•
•
•
•
•
•
•
SOIC
DIE
TSOP
ISD 256 0 (60 S e c o n d s )
IS D 2 5 7 5 ( 7 5 S e c o n d s )
P DI P
S OI C
DIE
I S D2 5 9 0 (9 0 Se co n ds )
TSOP
PDI P
S OI C
DI E
I SD2 51 20 (1 20 S e co nd s)
T SOP
PDI P
S OI C
DI E
Commercial Die
(0° to +50°)
Commercial Packaged
(0° to +70°)
O R D E R I N G
T H E
•
•
•
•
P R O D U C T S
•
•
•
•
•
•
•
•
•
•
•
I S D 2 5 0 0
ISD250 0-E E
Product Series
ISD2500 Series
Duration
32
40
48
64
60
75
90
120
=
=
=
=
=
=
=
=
32 seconds
40 seconds
48 seconds
64 seconds
60 seconds
75 seconds
90 seconds
120 seconds
Package Type
E
P
S
X
=
=
=
=
28 Lead 8
×
14.4mm TSOP
28 Lead 0.600-inch PDIP
28 Lead 0.300-inch SOIC
Die
Special Temperature Field
Blank = Commercial Die
(0°C to +50°C)
or Commercial Packaged
(0°C to +70°C)
I = Industrial
(–40°C to +85°C)
ISD and ChipCorder are
registered trademarks of ISD.
Printed in the U.S.A. ISD2500PBI-699
To Order Products or More Information:
A D D R E S S
P H O N E
2727 N. First Street
San Jose, CA 95134
1-800-677-0769 (US Only)
408-943-6666
408-544-1786 (Fax)
e - m a i l
W E B S I T E
www.isd.com
info@isd.com

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