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)