ISD5116EIR

Introduction

The ISD5116EIR is a high performance, low power, full duplex, single-chip, digital, voice record and playback device targeted at the consumer market. Each ISD5116EIR contains a single-chip, embedded microcontroller, and an integral voice record and playback system. The system is designed to provide low power and increased reliability. It is based on the 64 Mb EIR technology, and is capable of up to 2.3 minutes of total audio recording time.

Application Field

The ISD5116EIR is ideal for consumer applications such as home audio recorders and portable audio players. Its low power consumption and low price make it suitable for a wide range of consumer applications, including voice activated devices, voice dialers, music players and digital recording machines. The device has been successfully used in consumer audio recorders, digital recording and playback machines, and voice-controlled systems.

Working Principle

The ISD5116EIR is capable of simultaneous recording and playback in a single chip. A unique feature of the ISD5116EIR is its power savings feature, which reduces power consumption by up to 50% during record/playback, thus prolonging the playback duration. To start recording, the user pushes a record button or activates a voice command, which causes the ISD5116EIR to start recording in a single-channel system. To stop recording, the user pushes a stop button or deactivates the voice command.

During playback, the recorded audio is first converted to digital form and stored in an internal memory. It is then processed by a digital signal processor (DSP) and converted to an analog signal. The analog signal is then passed through a digital-to-analog converter (DAC), which converts the signal back to an analog waveform. The waveform is then amplified and emitted from a speaker or reproduced as soundwaves.

The ISD5116EIR also includes an onboard power-saving feature called Dynamic Power Control (DPC). This feature senses the amount of data to be stored and adjusts the power supply level accordingly, thus providing maximum power savings with minimum power usage.

Conclusion

The ISD5116EIR is a powerful, low power, full duplex, single-chip, digital, voice record and playback device designed specifically for consumer market applications. It offers extended record/playback times due to its power savings feature. Its high performance and low cost make it ideal for consumer audio recorders, digital recording and playback machines, music players, and voice-controlled systems.