ISD MicroTAD CAN BE USED IN VARIOUS APPLICATIONS:
• Telephone Answering Devices (TAD)
• Personal Digital Assistants (PDA)
• Portable Digital Recorders (PDR)
• PBX/voicemail
Single-Chip Voice Record/Playback Device
16-Minute Duration
Recordings are stored in on-chip non-volatile
memory cells, providing zero-power message stor-
age. This unique, single-chip solution is made possi-
ble through ISD’s patented multilevel storage
technology. Voice and audio signals are stored
directly into memory in their natural form, provid-
ing high quality, solid state voice reproduction.
FEATURES
•No A/C power adapter or battery back up
is required
•ONLY battery power required to operate
•No codecs required
•No external memory required
•Single-chip voice record/playback solution
•Low-power consumption
•Operating current:
ICC Play = 15mA (typical)
ICC Rec = 25mA (typical)
•Standby current 1 µA (typical)
•Single-chip 16-minute duration
•High quality, natural voice/audio reproduction
•AutoMute feature provides background noise
attenuation during periods of silence
•No speech compression algorithm development
required
•Microcontroller Serial Peripheral Interface
(SPI) or Microwire serial interface
•Fully addressable to handle multiple messages
•Non-volatile message storage
•Power consumption controlled by SPI or
Microwire control register
•Team with caller ID and µC, enables caller ID
announce and multiple, customized outgoing
messages (OGM) for specific incoming calls
•Cascade for longer durations
•100-year message retention (typical)
•100K record cycles (typical)
•On-chip clock source
•Available in die form, PDIP, SOIC and TSOP
packaging
ISD MicroTAD
Product
Brief
The MicroTAD®ChipCorder®product provides
high quality, low power, single-chip record/playback
solutions for 16-minute messaging applications such
as Telephone Answering Devices (TAD), Personal
Digital Assistants (PDA) and Personal Digital
Recorders (PDR) and PBX applications. The
CMOS-based devices include an on-chip
oscillator, anti-aliasing filter, smoothing
filter, AutoMute®feature, audio amplifier
and high-density multilevel Flash storage array
that requires battery power to record and playback
messages. The MicroTAD product is designed to be
used in a microprocessor- or microcontroller based
system. Address and control are accomplished
through a Serial Peripheral Interface (SPI) or
Microwire serial interface to minimize pin count.
ISD MicroTAD
Single-Chip Voice Record/Playback Device
16-Minute Duration
ISD MicroTAD BLOCK DIAGRAM
To Order Products or More Information:
ADDRESS PHONE
2727 N. First Street 1-800-677-0769 (US Only)
San Jose, CA 95134 408-943-6666
408-544-1786 (Fax)
WEBSITE e-mail
www.isd.com info@isd.com
ISD, ChipCorder, MicroTAD and AutoMute are
registered trademarks of ISD. All other trade-
marks are properties of their respective owners.
Printed in the U.S.A. ISDMicroTADPB1-799
XCLK
ANA IN–
ANA IN+
SCLK SS MOSI MISO INT RAC
VCCA VSSA VSSA VSSA VSSD VCCD
Power Conditioning Device Control
AUDOUT
Amp
AM CAP
Timing
Internal Clock
3840K Cell
Nonvolatile Multilevel
Storage Array
Analog Transceivers
Decoders
Sampling Clock
5-Pole Active
Antialiasing Filter
Amp
AutoMute
Feature
5-Pole Active
Smoothing Filter
ORDERING THE ISD MicroTAD PRODUCTS
ISD MicroTAD-16ME
Package Type
E = 28 Lead 8 × 14.4mm TSOP
P = 28 Lead 0.600-inch PDIP
S = 28 Lead 0.300-inch SOIC
X = Die
ISD MicroTAD
TSOP PDIP SOIC DIE
Commercial Die/Consumer
Packaged (0° to +50°) ••••
ISD MicroTAD PRODUCT PACKAGE AND
TEMPERATURE AVAILABILITY
DURATION DENSITY INPUT SAMPLE
(k cells) RATE (KHz)
ISD MicroTAD-16M 16 minutes 3840 4.0
ISD MicroTAD PRODUCT PORTFOLIO
