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ISD4003

Single-Chip Voice Record/Playback Devices 4-, 5-, 6-, and 8-Minute Durations

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ISD4003 Series

Single-Chip Voice Record/Playback Devices

4-, 5-, 6-, and 8-Minute Durations

GENERAL DESCRIPTION

The ISD4003 ChipCorder® Products provide high-

quality, 3-volt, single-chip Record/Playback solu-

tions for 4- to 8-minute messaging applications

which are ideal for cellular phones and other por-

table products. The CMOS-based devices include

an on-chip oscillator, antialiasing filter, smoothing

filter, AutoMute™ feature, audio amplifier, and

high density, multilevel Flash storage array. The

ISD4003 series is designed to be used in a micro-

processor- or microcontroller-based system. Ad-

dress 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

storage. 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, providing

high-quality, solid-state voice reproduction.

Figure: ISD4003 Series Block Diagram

June 2000

ISD/Winbond · 2727 North First Street, San Jose, CA 95134 · TEL: 408/943-6666 · FAX: 408/544-1787 · http://www.isd.com

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