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 ISD’s 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 (–20°C to +70°C) and industrial temperature (–40°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)
