ISD1760EYR

Overview

The Nuvoton ISD1760EYR is a fully integrated single-chip voice record and playback device from the ISD1700 ChipCorder series. It utilizes patented Multi-Level Storage (MLS) technology to store audio data directly in on-chip Flash memory without digital compression, ensuring high-quality reproduction. The device supports message durations ranging from 20 seconds to 480 seconds, depending on the selected sampling frequency. Sampling frequencies are user-selectable via an external resistor, covering ranges from 4 kHz to 12 kHz. Operating voltage spans 2.4 V to 5.5 V, making it suitable for battery or line-powered applications. It features dual operating modes: standalone push-button control and microcontroller SPI interface.

Feature Summary

• Integrated message management system enabling simple push-button operation with automatic power-down after each cycle.
• Dual input channels including differential microphone inputs with Automatic Gain Control (AGC) and a single-ended auxiliary analog input.
• Dual output capabilities featuring a Pulse Width Modulation (PWM) Class D speaker driver for direct speaker connection and a configurable analog output for external amplifiers.
• Supports both Standalone mode for autonomous operation and SPI mode for full microcontroller control over memory addresses and audio path configuration.

Applications

• Electronic systems requiring multi-message voice recording and playback
• Battery-operated devices optimized for low voltage operation
• Applications needing sophisticated messaging flexibility in a simple environment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm package type and temperature grade. Ensure the component matches the required industrial or commercial specifications. Cross-reference the part number with authorized distributors to confirm availability and authenticity before procurement.

Selection Notes

Select the ISD1760EYR when a message duration of up to 120 seconds at 8 kHz or 40 seconds at 12 kHz is required. Choose this model over other ISD1700 variants based on the specific balance between recording time and audio quality needed for the application. Consider the packaging options available for the specific design constraints.

Part Context

The ISD1760EYR belongs to the ISD1700 ChipCorder series, which includes models like the ISD1730, ISD17120, and ISD17240. These devices share common architecture but differ in storage capacity and resulting message durations. The series is designed for high-quality voice reproduction using non-volatile MLS technology.

Replacement Considerations

Compatible substitutes within the same family include ISD1730SYI, ISD17120, and ISD17240. Selection depends on whether longer or shorter message durations are acceptable. Verify pin compatibility and electrical characteristics across the specific variant being considered.