ISD15104FYI

Overview

The ISD15104FYI is a multi-message ChipCorder featuring digital compression, comprehensive memory management, flash storage, and integrated analog/digital audio signal paths. It supports message durations of 2 to 8 minutes based on 8kHz/4bit ADPCM. The device utilizes flash memory for non-volatile audio record/playback and provides an I2S digital audio interface alongside SPI. Operating voltage ranges from 2.7V to 3.6V with a typical standby current of 1uA. It features address-free recording, pre-recorded voice prompts, and macro scripts. Audio inputs include AUXIN and ANAIN/ANAOUT (microphone differential input), while outputs include PWM speaker driver, AUDOUT, AUXOUT, and BTL.

Feature Summary

• Supports fast digital programming via SPI interface with rates up to 1Mbits/second.
• Enables address-free recording where the device allocates memory and returns start addresses automatically.
• Integrates Class D PWM speaker driver delivering up to 620mW output power at 3.6V into a 4Ω load.
• Includes built-in automatic gain control (AGC) circuit configured by SPI command for microphone inputs.

Applications

• Voice prompting systems requiring high-quality digital compression
• Multi-message recording devices utilizing address-free allocation
• Audio interfaces supporting I2S or SPI digital data input
• Battery-powered applications benefiting from low standby current consumption

Procurement Notes

Verify the specific suffix 'FYI' against the manufacturer's official ordering information table to confirm package type, temperature grade, and tape/reel specifications. Ensure the procurement source provides documentation matching the ISD15100 series datasheet revision 1.6 or later to guarantee parameter accuracy.

Selection Notes

Select this component when system requirements include multi-message capabilities with flash-based non-volatile storage. Consider the ISD15104FYI for designs needing both analog audio interfaces and digital I2S/SPI connectivity. Evaluate the available sampling frequencies and compression algorithms such as ADPCM or PCM to match audio quality needs against memory constraints.

Part Context

The ISD15104FYI belongs to the ISD15100 series of ChipCorder products manufactured by Nuvoton Technology Corporation. This series distinguishes itself by offering I2S digital audio interfaces and higher sampling frequencies compared to previous generations. The family integrates flash memory to eliminate the need for external storage components in voice recording and playback applications.

Replacement Considerations

Consult the official Nuvoton ISD15100 series datasheet for confirmed substitute part numbers within the same product family. Verify pin compatibility and electrical characteristics before replacing existing components with other members of the ISD15100 series.