ISDC_ABO.PDF

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A Winbond Company
About ChipCorder Technology
ISD’s differentiation lies in its patented ChipCorder
multilevel storage technology, a means whereby
analog signals are stored directly into solid-state,
standard, nonvolatile EEPROM and flash memory
cells. Instead of storing one of two states per mem-
ory cell—a “1” or a “0” (or, in terms of voltage levels,
an “on” or an “off”)—ISD’s ChipCorder technology
stores one of more than 250 distinct voltage levels
per single memory cell, offering up to eight times
more information per cell than conventional digital
storage technology. Thus, for a given quality of
voice reproduction, ChipCorder products require
one-eighth the memory storage space of conven-
tional digital storage techniques, thereby providing
cost advantage in delivering high-quality voice so-
lutions over conventional digital storage tech-
niques.
ChipCorder products do not require battery back-
up to preserve the recorded message. Overall pow-
er consumption, therefore, is dramatically reduced,
making these devices ideal for handheld, battery-
powered applications.
Additionally, ChipCorder technology enables stor-
age of voice and audio signals directly into memo-
ry, eliminating the need for analog-to-digital
conversion. This not only minimizes, but also simpli-
fies, the external circuitry required. ChipCorder
products integrate the oscillator, microphone pre-
amplifier, automatic gain control, anti-aliasing filter,
multilevel storage array, smoothing filter, and
speaker amplifier on-chip to achieve a complete
“system on a chip.” Only a microphone, speaker,
power source, and a few passive components are
needed to implement a complete record/play-
back function. The simplicity of use and integration
allows ChipCorder to be used across several elec-
tronic markets.
ChipCorder products can be recorded and re-
recorded reliably at least 100,000 times and are the
market’s only complete single-chip solution to
retain messages without power.
CHIPCORDER PRODUCTS OFFER:
¥
¥
¥
¥
Voice record/playback system on a single
chip
10 sec. to 16 min. record and playback
solutions
Industry-leading sound quality
Fully integrated system functions: AGC, mic
preamp, speaker drivers, filters, oscillator,
memory
Low voltage operation
Message management
Flexible architecture
Battery-less message storage
¥
¥
¥
¥
ISD
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Voice Solutions in Silicon
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