ISD17180SYI

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ISD17180SYI is an integrated circuit (IC) from STMicroelectronics that is designed for applications that require recording and playback of audio. The IC is commonly used in products like answering machines, car audio systems, and portable digital audio players. It has an 8-bit analog-to-digital converter (ADC) and a 12-bit digital-to-analog converter (DAC). The nominal supply voltage for the IC is 5 volts, with a range of 5.5 to 8.5 volts.

The IC is based on the ISD1600 series architecture, but with a few additional features. It has a built-in microphone pre-amplifier and a microcontroller with the ability to measure playback and recording speed. It also has on-chip memory to store data even with power off. The IC supports features like voice activation (VOX) and Analogue Companding that allows increased dynamic range of audio signals.

The ISD17180SYI is a dedicated hardware/firmware platform for voice recording and playback applications. It has on-chip non-volatile memory to store recording data, capable of storing up to up to 180 seconds of mono or mono-stereo recording. It also has an audio interface with the ability to support headphone, microphone and line-in connections. Additionally, it supports multiple sampling frequencies and bit resolutions.

The working principle of the device is quite simple. When an external input is detected, the microphone pre-amplifier amplifies and digitizes the signal for storage into the on-chip memory. When the user wants to playback the recorded audio, the device reads the stored data and sends it to the digital-to-analog converter, which converts the digital data into analog signals. The analog-to-digital converter then amplifies and sends the analog signals to the appropriate output device.

The ISD17180SYI is a versatile IC that is ideal for a variety of voice recording and playback applications. It is easy to integrate with other devices due to its highly optimized architecture and integrated firmware. With its multi-format audio capabilities, low power consumption and small footprint, the device is an excellent choice for designs that require excellent noise-free performance.

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