ISD17150SYR

Overview

The ISD17150SYR is a fully integrated, single-chip multi-message voice record and playback device from the Nuvoton ChipCorder series. It utilizes patented Multi-Level Storage (MLS) for non-volatile message storage. The device supports user-selectable message durations ranging from 33 to 100 seconds and features an adjustable sampling frequency between 4 kHz and 12 kHz via an external resistor. Operating voltage spans 2.4 V to 5.5 V. It incorporates an internal oscillator, microphone preamplifier with Automatic Gain Control (AGC), volume control, and a Pulse Width Modulation (PWM) Class D speaker driver. The component interfaces via buttons or SPI and is housed in a 28-SOIC package.

Feature Summary

• Proprietary message management system enabling self-managed address locations for multiple messages without microcontroller intervention.
• Integrated analog front-end including microphone preamplifier with Automatic Gain Control (AGC) and anti-aliasing filter.
• Built-in Pulse Width Modulation (PWM) Class D speaker driver for direct audio output.
• Supports standalone push-button operation or microcontroller-controlled SPI interface modes.

Applications

• Electronic systems requiring simple, low-cost voice messaging capabilities.
• Battery-powered applications due to wide operating voltage range.
• Industrial or consumer devices needing non-volatile voice storage.

Procurement Notes

Verify the specific suffix 'SYR' against official Nuvoton documentation to confirm package type and temperature grade, as datasheets may list 'SYI' or other variants. Confirm end-of-life status and lead times with authorized distributors, as availability for this specific part number may be limited. Ensure the selected variant matches the required operating temperature range and packaging format for your design.

Selection Notes

Select this component when a single-chip solution for multi-message voice recording and playback is required without external memory. Choose based on the desired duration (33-100 seconds) and sampling frequency (4-12 kHz). Verify that the 28-SOIC package fits the PCB layout constraints. Consider the SPI interface if microcontroller integration is needed for complex message management, otherwise use button mode for simpler applications.

Part Context

The ISD17150SYR belongs to the Nuvoton ISD1700 ChipCorder series, which offers high-quality, fully integrated voice recording solutions. This series is characterized by its proprietary MLS technology, allowing for flexible message durations and sampling rates. The ISD17150 variant specifically targets applications requiring up to 100 seconds of recording time, providing a balance between sound quality and storage capacity within a compact single-chip form factor.

Replacement Considerations

Check for manufacturer-recommended substitutes such as other ISD1700 series variants with different duration ranges or packages. Verify pin compatibility and electrical specifications before replacing. Note that the ISD17150SYI is listed as a related part; ensure functional equivalence if substituting.