ISD25120P

Overview

The ISD25120P is a voice record and playback integrated circuit from Nuvoton Technology Corporation, belonging to the ChipCorder series. It supports multiple message recording with a total duration of 2 minutes. The device operates on a supply voltage ranging from 4.5 V to 6.5 V and features an internal or external oscillator configuration. It utilizes a pushbutton interface for control and accepts analog single-ended microphone input. The output signal is delivered via PWM to a speaker. Key technical parameters include a sampling frequency of 4 kHz, a pass band of 1.7 kHz, and automatic gain control functionality. The component is designed for through-hole mounting in a 28-DIP package.

Feature Summary

• Supports multiple message recording and playback with a total capacity of 2 minutes.
• Integrates automatic gain control to manage audio signal levels.
• Features a simple pushbutton interface for direct user operation.
• Outputs audio signals via PWM suitable for driving speakers.

Applications

• Voice messaging systems
• Announcement modules
• Simple audio recording devices

Procurement Notes

Verify component status as obsolete before procurement planning. Confirm RoHS non-compliance requirements against project specifications. Ensure the 28-DIP through-hole package aligns with existing PCB footprints. Validate that the 4.5 V to 6.5 V supply range matches the target system power design.

Selection Notes

Select this component when a dedicated voice record/playback IC with pushbutton control is required. Consider the 2-minute duration limit and 4 kHz sampling rate for audio quality needs. Verify compatibility with the 28-DIP package type for through-hole assembly processes.

Part Context

The ISD25120P is part of the ChipCorder series by Nuvoton Technology Corporation. This series focuses on standalone voice recording and playback solutions. The specific model provides a balance of recording time and simplicity for basic audio applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. As the product status is listed as obsolete, alternative sourcing or redesign may be necessary.