Single-Chip Voice Record/Playback Devices 2- to 16-Minute Durations
The ISD4000 ChipCorder® Products provide high-quality, 3-volt, single-chip record/playback
solutions for 2- to 16-minute messaging applications which are ideal for cellular phones and other
portable products. The CMOS based devices include an oscillator, antialiasing filter, smoothing
filter, AutoMute® feature, audio amplifier, and high density, multilevel Flash storage array. The ISD4000 series is designed to be used in a microprocessor- or microcontroller-based system. Address and control are accomplished through a Serial Peripheral Interface (SPI) or Microwire serial interface to minimize pin count.
Recordings are stored in on-chip nonvolatile memory cells, providing zero-power message stor
age. This unique, single-chip solution is made possible through ISDâs patented multilevel storage
technology. Voice and audio signals are stored directly into memory in their natural form, provid
ing high-quality, solid-state voice reproduction.
FEATURES
⢠Single-chip voice record/playback solution
⢠Single +3 volt supply
⢠Low-power consumption
⢠Operating current:
ICC Play = 15 mA (typical)
ICC Rec = 25 mA (typical)
⢠Standby current 1 µA (typical)
⢠Single-chip durations of 2, 2.5, 3, 4, 5, 6, 8, 10, 12 and 16 minutes
⢠High-quality, natural voice/audio reproduction
⢠AutoMute feature provides background noise attenuation during periods of silence
⢠No speech compression algorithm development required
⢠Microcontroller SPI or Microwire serial interface
⢠Fully addressable to handle multiple messages
⢠Nonvolatile message storage
⢠Power consumption controlled by SPI or Microwire control register
⢠100-year message retention (typical)
⢠100K record cycles (typical)
⢠On-chip clock source
⢠Available in die form, PDIP, SOIC, TSOP and chip scale packaging (CSP)
⢠Extended temperature (â20°C to +70°C) and industrial temperature (â40°C to +85°C) versions available
ISD40000 SERIES CAN BE USED IN VARIOUS APPLICATIONS:
⢠Cellular phones
⢠Portable Digital Recorders (PDR)
⢠Automotive
⢠Telephone Answering Devices (TAD)
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