ISD1932SYI01

Overview

The ISD1932SYI01 is a single-chip multiple-message record/playback device from the ISD1900 ChipCorder series. It supports dual operating modes: Address Mode and Direct Mode, with a supply voltage range of 2.4V to 5.5V. The sampling frequency is selectable from 4 kHz to 12 kHz via an external resistor (Rosc), determining a maximum duration of 64 seconds at 4 kHz. It features differential microphone inputs with AGC, Class-D PWM speaker drivers, and automatic power-down capabilities.

Feature Summary

• Dual operational modes including flexible address-based message definition and fixed direct-trigger random access for up to eight messages.
• Integrated differential Class-D PWM speaker driver capable of directly driving an 8-ohm speaker or providing single-ended voltage output.
• Selectable differential microphone input with automatic gain control (AGC) or single-ended analog feed-through mode.

Applications

• Standalone voice recording and playback systems
• Microcontroller-integrated audio messaging modules
• Industrial or consumer devices requiring multi-message voice prompts

Procurement Notes

Verify the specific derivative suffix against the official datasheet to confirm pinout compatibility and output configuration. Ensure the ordering information matches the required package type and temperature rating before procurement.

Selection Notes

Select based on required message duration and memory allocation needs. Choose between Address Mode for variable lengths or Direct Mode for fixed-length random access. Verify that the external resistor value aligns with the desired sampling frequency and total recording time.

Part Context

This component belongs to the Nuvoton ISD1900 ChipCorder series, which provides single-chip solutions for voice applications. The series includes variants like ISD1916, ISD1932, and ISD1964, differentiated primarily by their internal flash memory capacity and resulting maximum recording durations.

Replacement Considerations

ISD1932SYI