ISD17120EYI

Series:	ChipCorder®
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Interface:	Pushbutton, SPI
Moisture Sensitivity Level (MSL):	--
Input Signal:	Analog - Single Ended, Microphone
Output Signal:	Analog - Single Ended, PWM Speaker Output
Sampling Frequency:	4 ~ 12kHz
Duration:	80 ~ 240 Sec
Filter Pass Band:	--
Messaging:	Multiple
Oscillator Type:	Internal
Features:	Automatic Gain Control, Volume Control
Operating Temperature:	-40°C ~ 85°C (TA)
Voltage - Supply:	2.4V ~ 5.5V
Mounting Type:	Surface Mount
Package / Case:	28-TSSOP (0.465", 11.80mm Width)
Supplier Device Package:	28-TSOP

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Interface - Voice Record and Playback

ISD17120EYI is an integrated analog-to-digital converter used primarily to record and playback voice audio in digital format. Developed by Information Storage Devices (ISD) and released into the market in 2017, it was the first in a line of devices commonly referred to as "chip audio recorders". This chip offers an array of features that have since been adopted by most other integrated audio recorders and has become a standard for both the home and professional audio recording community.The ISD17120EYI consists of three main components - a sampling circuit, an analog-to-digital converter, and a digital-to-analog converter. The sampling circuit first captures the analog audio signal and transforms it into a digital signal. It then sends the digital signal to the integrated analog-to-digital converter, which converts it into a digital file format typically used in an audio recording. Finally, the digital-to-analog converter reconverts the digital file back into an analog format, allowing for playback of the recorded audio.Given the integrated nature of the ISD17120EYI, the chip offers an attractive solution for those looking for a simple and compact solution for voice recording and playback. The chip is relatively low-cost and is powered by an internal power supply, making it ideal for portable applications where power consumption is a concern. As the IC also provides a built-in amplifier and limiter, it also removes additional components (such as pre-amplifiers or limiters) from the audio path, simplifying the design process further.In terms of usage scenarios, the ISD17120EYI\'s primary purpose is for low-complexity voice recording applications, such as voice memos, voice-assisted navigation, or digital message recording. It can also be used for basic speech recognition, automated telephony systems, or for digital transcription of audio interviews.Ultimately, the ISD17120EYI offers a low-cost and highly integrated solution for voice recording and playback applications. Its small form-factor, simple design, and low power consumption make it an ideal solution for embedded design applications. As the IC already contains many of the core components required for voice recording, it provides a cost-effective alternative to more custom-designed audio recorder systems.

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