ISD4003-06MEDR

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ISD4003-06MEDR Application Field and Working Principle

The ISD 4003-06MEDR is a family of low-cost, fixed memory, single-chip, voice recording and playback devices. It is designed for use in telephones, electronic learning toy applications, automatic identification systems, voice notes and voice prompts. It was specifically designed for miniature applications, such as control panel and hand-held applications, where recording times need to be short and IC cost low.

The ISD4003-06MEDR provides three audio files, each of 16/14K Bytes long, which can be recorded and played back from up to eighteen plates in a linear fashion. It is available in two package types, TSSOP and DFN, making it ideal for applications with minimal space requirements.

Application Fields:

• Telephones/phonemes
• Electronic learning toy applications
• Automatic identification systems
• Voice notes
• Voice prompts

Working Principle:

The ISD4003-06MEDR uses a fixed ROM with command sequencer. It has a built-in 8-bit DSP/AD/DA converter and programmable clock generator. The device has a record and playback power mode, as well as a low power idle mode.

The ISD4003-06MEDR can be programmed in two ways. The first way is to program the internal ROM with the required recording and playback locations, while the second way is to program the internal ROM via a host microcontroller. The device supports two types of programming: A single record/playback command and multiple record/playback commands.

When activated, the device wakes up and checks its internal ROM. If a valid recording and playback program has been set, the device will then begin recording or playing back. After the recording or playback is complete, the device will go into low power idle mode.

The ISD4003-06MEDR is a cost-effective, reliable device for voice recording and playback. Its miniature size, low power operation and ability for multiple recording/playback make it an ideal choice for many applications.

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