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Product Detailed Parameters
- Description：IC VOICE REC/PLAY 100SEC 28TSOP
- Series：ChipCorder®
- Mfr：Nuvoton Technology Corporation
- Package：Tray
- Interface：Pushbutton, SPI
- Input Signal：Analog - Single Ended, Microphone
- Output Signal：Analog - Single Ended, PWM Speaker Output
- Sampling Frequency：4 ~ 12kHz
- Duration：33 ~ 100 Sec
- Filter Pass Band：-
- Messaging：Multiple
- Oscillator Type：Internal
- Features：Automatic Gain Control, Volume Control
- Operating Temperature：-40°C ~ 85°C (TA)
- Voltage - Supply：2.4 V ~ 5.5 V
- Mounting Type：Surface Mount
- Package / Case：28-TSSOP (0.465", 11.80mm Width)
- Supplier Device Package：28-TSOP
- Grade：-
- Qualification：-
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Overview
The ISD1750EYI 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 IC supports user-selectable message durations ranging from 33 to 100 seconds, with sampling frequencies adjustable between 4 kHz and 12 kHz via an external resistor. Operating voltage spans 2.4 V to 5.5 V, and it features an internal oscillator. The device operates in standalone pushbutton mode or microcontroller SPI mode, housed in a 28-TSOP package.
Feature Summary
- Proprietary message management system enables self-managed address locations for multiple messages without complex programming.
- Integrated microphone preamplifier with Automatic Gain Control (AGC) and volume control for optimized audio input.
- Built-in Pulse Width Modulation (PWM) Class D speaker driver provides direct analog output capability.
- Supports both standalone pushbutton operation and serial peripheral interface (SPI) communication modes.
Applications
- Electronic systems requiring simple push-button voice messaging
- Battery-powered applications due to wide voltage range optimization
- Microcontroller-based voice recording and playback modules
Procurement Notes
Verify component status carefully as the ISD1750EYI is listed as obsolete and no longer manufactured by Nuvoton Technology Corporation. Confirm availability through authorized distributors or verify stock levels before design finalization. Ensure that any substitute components meet the required electrical specifications and pin compatibility for existing designs.
Selection Notes
Select this component when a dedicated voice recording solution with automatic gain control and non-volatile storage is required. Consider the 33-100 second duration range and 4-12 kHz sampling frequency options based on quality needs. Evaluate the 28-TSOP surface mount package constraints against board space requirements and thermal performance expectations.
Part Context
This part belongs to the Nuvoton ISD1700 ChipCorder series, which offers various message duration ranges from 6 seconds to 17 minutes. The series is designed for high-quality, fully integrated voice applications. The ISD1750EYI specifically targets mid-range duration requirements within this family, providing flexibility in sampling rate adjustment for different audio quality versus storage capacity trade-offs.
Replacement Considerations
Nuvoton recommends I2361YYI, I3800FYI, and I3900FYI as substitutes. Verify electrical parameters and pinout compatibility before replacement. These alternatives may offer updated manufacturing status while maintaining functional equivalence for legacy designs.
