ISD17150PYI

Overview

The Nuvoton ISD17150PYI is a member of the ISD1700 ChipCorder series, a fully integrated single-chip multi-message voice record and playback device. It utilizes patented Multi-Level Storage (MLS) for non-volatile message storage, allowing user-selectable message durations ranging from 26 to 120 seconds. The sampling frequency is adjustable from 4 kHz to 12 kHz via an external resistor, balancing duration and quality. Operating voltage spans 2.4 V to 5.5 V. The device features an on-chip oscillator, microphone preamplifier with Automatic Gain Control (AGC), auxiliary analog input, anti-aliasing filter, smoothing filter, volume control, and a PWM Class D speaker driver.

Feature Summary

• Proprietary message management system enabling self-managed address locations for multiple messages without microcontroller intervention.
• Integrated audio processing chain including microphone preamplifier with AGC, anti-aliasing filter, and PWM Class D speaker driver.
• Supports both stand-alone push-button operation and microcontroller-controlled SPI mode for flexible system integration.

Applications

• Electronic systems requiring simple, low-cost voice messaging.
• Consumer electronics with limited space for dedicated voice modules.
• Industrial or commercial devices needing automated voice prompts or alerts.

Procurement Notes

Verify the specific suffix 'PYI' against official Nuvoton documentation to confirm package type and temperature range. Ensure the selected variant matches the required operating voltage and environmental specifications for the target application. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a standalone voice recording solution is preferred over microcontroller-based audio processing. Consider the trade-off between sampling frequency and message duration based on the external resistor value. Evaluate if the built-in AGC and speaker driver meet the acoustic requirements before adding external amplification stages.

Part Context

The ISD17150PYI belongs to the ISD1700 ChipCorder series, which represents Nuvoton's legacy in integrated voice recording technology. This series is designed to replace complex discrete audio circuits with a single-chip solution, simplifying design and reducing bill-of-materials costs for voice-enabled products.

Replacement Considerations

Check for newer iterations within the ISD1700 family or alternative Nuvoton voice ICs that may offer improved power consumption or extended memory capacity. Verify pin compatibility if substituting with other models in the same series.