Single-Chip, Single-Message Voice Record/Playback
Device 8- to 16-Second Durations
Information Storage Devices’ ISD1810 ChipCorder®
provides high-quality, single-chip, single-message,
record/playback solution with user-selectable du-
rations of 8 to 16 seconds. The CMOS devices in-
clude an on-chip oscillator (with external control),
microphone preamplifier, automatic gain con-
trol, anti-aliasing filter, multilevel storage array,
smoothing filter, and speaker amplifier. A mini-
mum record/playback subsystem can be config-
ured with a microphone, a speaker, several
passive components, two push-buttons, and a
Recordings are stored in on-chip nonvolatile mem-
ory cells, providing zero-power message 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.
Figure: ISD1810 Block Diagram
ISD · 2727 North First Street, San Jose, CA 95134 · TEL: 408/943-6666 · FAX: 408/544-1787 · http://www.isd.com