ISD1210S

Introduction

ISD1210S is a digital voice processor chip from Nuvoton Corporation. It is a single-chip voice record and playback solution. It is a low-cost, highly integrated, and low-power solution for digital recording, playback and related applications. With its advanced digital audio technology, it can provide low distortion, high sampling rate and low power consumption.

Application Field

The ISD1210S can be used in a wide variety of applications, such as voice recorders, voice prompts and voice alarms, portable audio players, sound effects, musical greeting cards, and multimedia products with speech recognition and interactive voice response (IVR). It is widely used in consumer electronic products, home appliances, toys, and industrial/medical equipment.

Working Principle

The ISD1210S can simultaneously perform sampling, storage, and playback operations. Digital microphone inputs audio signals in the form of analogue signals, then an on-chip A/D (analog to digital converter) converts the analogue signals to digital signals for further processing. The ISD1210S supports dual-channel compression and encoding technology, which can reduce the size of digital audio files to half or even one-tenth of its original size. In addition, the ISD1210S can also encode digital audio in a variety of standard formats. The ISD1210S embedded memory can store digital audio in its internal memory or off-chip memory device such as an SD card. During playback, the stored digital audio is decoded using a built-in DSP, and the converted audio signals are output through the headphone or speaker. The ISD1210S also supports many audio effects including noise recognition and removal.

Conclusion

The ISD1210S is a versatile digital voice processor chip for recording, playback and related applications. It supports dual-channel compression and encoding technology that can reduce the size of digital audio files, as well as advanced digital audio technologies to provide low distortion, high sampling rate and low power consumption. Moreover, the ISD1210S also supports a variety of audio effects, giving users more flexibility and options. The ISD1210S is an ideal choice for a wide range of consumer electronic products, home appliances, toys, and industrial/medical equipment.