ISD1810

ISD1810 Single-Chip, Single-Message Voice Record/Playback Device 8- to 16-Second Durations Advance Information GENERAL DESCRIPTION Information Storage Devices’ ISD1810 ChipCorder® provides high-quality, single-chip, single-message, record/playback solution with user-selectable durations of 8 to 16 seconds. The CMOS devices include an on-chip oscillator (with external control), microphone preamplifier, automatic gain control, anti-aliasing filter, multilevel storage array, smoothing filter, and speaker amplifier. A minimum record/playback subsystem can be configured with a microphone, a speaker, several passive components, two push-buttons, and a power source. Recordings are stored in on-chip nonvolatile memory 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 July 2000 ISD · 2727 North First Street, San Jose, CA 95134 · TEL: 408/943-6666 · FAX: 408/544-1787 · http://www.isd.com ISD1810 Product FEATURES Easy-to-use single-chip, single-message voice record/playback solution High-quality, natural voice/audio reproduction Push-button interface – Playback can be edge- or levelactivated Variable record/playback duration controlled by external resistor selection which sets sample rate. 8 KHz sample rate = 8 s...