ISD1760SYR

Overview

The ISD1760SYR is a single-chip multi-message voice record and playback device from the Nuvoton ISD1700 ChipCorder series. It features user-selectable message durations ranging from 26 to 120 seconds, depending on the sampling frequency. The sampling frequency can be adjusted from 4 kHz to 12 kHz using an external oscillator resistor. Operating voltage spans 2.4 V to 5.5 V. The device supports standalone push-button operation or microcontroller control via SPI interface. Key components include an on-chip oscillator, microphone preamplifier with Automatic Gain Control (AGC), Multi-Level Storage (MLS) array, and a PWM Class D speaker driver.

Feature Summary

• Integrated message management system for standalone push-button applications
• Dual operating modes: Standalone and SPI microcontroller control
• Multi-Level Storage (MLS) technology for non-volatile message storage
• Automatic power-down after each operation cycle

Applications

• Electronic systems requiring voice prompts
• Standalone voice messaging devices
• Microcontroller-integrated audio notification systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature grade. Ensure compatibility with the required sampling frequency by selecting the appropriate external oscillator resistor value as specified in the datasheet electrical characteristics section.

Selection Notes

Select this component when a fully integrated solution for multi-message recording and playback is required without external compression chips. Consider the available message duration ranges relative to the desired sampling frequency. Evaluate whether standalone push-button control suffices or if SPI mode integration with a host processor is necessary for complex address-based operations.

Part Context

The ISD1760SYR belongs to the ISD1700 ChipCorder series, which utilizes patented Multi-Level Storage technology. This series provides high-quality voice reproduction by storing audio data directly in solid-state memory without digital compression. The family includes variants with different maximum message durations, such as the ISD1730, ISD1760, ISD17120, and ISD17240.

Replacement Considerations

Other members of the ISD1700 series, such as the ISD1730 or ISD17120, may serve as alternatives if different message duration requirements are needed. These parts share similar pinouts and operational modes but offer varying storage capacities.