Rainbow Electronics ISD1800 - Manual (Page 2)

ISD1800 SERIES
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1. GENERAL DESCRIPTION
Winbond’s ISD1800 ChipCorder ® 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 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 Winbond’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
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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
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Enters standby mode immediately following a record or playback cycle
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0.5 µA standby current (typical)
• On-chip 8Ω speaker driver
• Zero-power message storage
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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 and 28-pin 300mil SOIC
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28-pin 600mil PDIP available for samples only