Nuvoton IC enables design branding with playback

The highly integrated ISD2100 reduces overall product costs and conserves designs through its ability to operate independently of a microcontroller, along with its built-in digital compression, flash storage for non-volatile audio playback of up to 30sec, a speaker driver and digital audio signal paths.

The low-power (less than 1uA standby), easily programmable device features an improved sampling rate of up to 32Khz and a higher signal-to-noise ratio (60dB) than previous-generation digital-audio ICs.

The ISD2100 is designed as a cost-effective solution for distinguishing products with high-quality digital playback of audio-grade sound alerts and corporate audio-logo clips.

It is said to complement the use of touch sensors in industrial and consumer products, and can be activated immediately by touch sensors, providing alerts or other audio feedback while the full system is waking up.

The device 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 range of memory-management features make audio playback transparent to a host controller.

The ISD2100's programmable general-purpose input/output (GPIO) flexibility allows designers to trigger several different combinations of script macros containing audio files, enabling user-initiated audio applications.

While the ISD2100 can be factory preprogrammed, it also may be programmed via its serial peripheral interface (SPI) in the field or manufacturing.