ISD1806X Datasheet | Nuvoton Technology

ESCRIPTION Nuvoton’s ISD1800 Chip Corder® provides high-quality, single chip, single-message, record/playback solution with user-selectable durations of 6 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 ponents, two push buttons, and a power source. Recordings are stored in on-chip nonvolatile memory cells, providing zeropower message storage. This unique, single-chip solution is made possible through Nuvoton’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. 2. Features - Easy-to-use single-chip, single-message voice record/playback solution - High-quality, natural voice/audio reproduction - Push-button interface o Playback can be edge- or level-activated - Variable record/playback duration controlled by external resistor selection, which sets sample rate. Sample Rate Duration 8 KHz 6.4 KHz 5.3 KHz 4 HKz I1806 6 secs 7.5 secs 9 secs 12 secs I1810 8 secs 10 secs 12 secs 16 secs ROSC 80 KΩ 100 KΩ 120 KΩ 160 KΩ - Automatic power-down mode o Enters standby mode immediately following a record or playback cycle o 0.5 µA standby current (typical) - On-chip 8Ω speaker driver - Zero-power message storage o Eliminates battery backup circuits - 100-year message retention (typical) - 100,000 record cycles (typical) - On-chip oscillator - No algorithm development required - Single +3 volt power supply - Available in DIE form Feb 1, 2023 Page 3 of 22 Rev1.3 3. BLOCK DIAGRAM ISD1800 Feb 1, 2023 Page 4 of 22 Rev1.3 ISD1800 4. PAD DESCRIPTION PAD NAME I/O VSSD, VSSA REC...