Nuvoton Technology Corp., has introduced the ChipCorder
ISD2100, a single-chip digital audio-grade IC, enabling
industrial and consumer product makers to quickly and economically
brand their designs with audio-grade digital playback of
voice and/or music. The ISD2100 operates independently without
a microcontroller, along with its built-in digital compression,
flash storage for non-volatile audio playback of up to 60
seconds, a speaker driver, and digital audio signal paths.The
device still can be used in conjunction with a host microcontroller,
though once the ISD2100 is programmed, there's no need for
microcontroller intervention, and the ISD2100's array of
memory-management features make audio playback transparent
to a host controller.
ISD2100 fetures low-power standby current of <1uA ,
and sampling rate up to 32Khz and a higher signal-to-noise
ratio of 60dB.
This chips can be used in systems to feature high-quality
digital playback of audio-grade sound alerts and corporate
audio-logo clips, some thing called "acoustic branding"
in application markets such as navigation, radar, automotive
and hands-free systems to medical and industrial uses like
personal-emergency-response and warning devices, instrumentation
systems, and vending machines.
The ISD2100 complements the emerging use of touch sensors
in industrial and consumer products; the device can be activated
immediately by touch sensors, thus providing alerts or other
audio feedback while the full system is waking up.
"Since the inception of the ChipCorder family, Nuvoton
has endeavored to expand designers' imaginations as to what
they can accomplish with voice/audio applications,"
said Mike Luh, director of product marketing at Nuvoton
Technology Corporation America. "As the industry's
first true single-chip audio-grade IC, the ISD2100 expands
our highly successful ChipCorder line with more programmability,
greater playback clarity and an unmatched array of integrated
features that enable cost-efficient products across multiple
markets."
The ISD2100's programmable general-purpose input/output
(GPIO) flexibility allows designers to trigger several different
combinations of script macros containing audio files, thus
enabling user-initiated audio applications. Additionally,
while the ISD2100 can be factory preprogrammed, it also
may be programmed via its serial peripheral interface (SPI),
in either the field or manufacturing.
The ISD2100, available in a 20-pin QFN green packaging,
is in volume production.
For full technical details of the ISD2100 -- and other
Nuvoton ChipCorder devices - go to www.nuvoton.com