ISD1730SYR

Series:	ChipCorder®
Part Status:	Active
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:	20 ~ 60 Sec
Filter Pass Band:	--
Messaging:	Multiple
Oscillator Type:	Internal
Features:	Automatic Gain Control, Volume Control
Operating Temperature:	0°C ~ 70°C (TA)
Voltage - Supply:	2.4V ~ 5.5V
Mounting Type:	Surface Mount
Package / Case:	28-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	28-SOIC

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Introduction To ISD1730SYR

The ISD1730SYR is an integrated audio recording, playback and storage chip developed by the ISD Corporation. It is a versatile device suitable for both voice and non-voice applications. It includes three on-board memory banks, each capable of storing up to 9 minutes of stereo audio recordings. This makes it a great choice for applications that require long-term sound playback and storage.

Applications

The ISD1730SYR is an ideal option for applications ranging from automotive audio systems to electronic toys. It offers a simple and cost-effective solution for embedded audio recording and playback. It can also be used in a range of motion-activated devices and automatic speech recognition applications. The device is commonly used in applications such as answering machines, message centers, automatic voice response systems and speech-enabled products. With the support of a controller and an external clock, the ISD1730SYR can also be used in radio control applications. Additionally, it can also be used in automated home security systems, automated door locks and home automation systems.

Working Principle

The ISD1730SYR is based on the ISD1710 memory architecture, which consists of three memory banks and up to 32Mbit of SDRAM. Each bank is capable of storing up to 9 minutes of stereo audio recordings. The overall architecture of the ISD1730SYR is quite simple. It consists of three core components: an audio codec, a memory controller and the three Memory Banks. The audio codec is responsible for digitizing and compressing analog audio signals into digital audio streams. The memory controller is responsible for managing and accessing the data stored in the three Memory Banks. The ISD1730SYR provides several methods for accessing this data. These include UART serial and SPI interfaces as well as an external clock signal. Additionally, the device also supports a Playback Interrupt for event control. This interrupt can be triggered by pre-defined audio events such as a start of recording or a stop of playback.

Conclusion

The ISD1730SYR is a versatile and highly effective voice recording and playback device suitable for a variety of applications. It is a cost-effective option that provides an easy and reliable way to record, store and playback audio files. Despite its small size, the device can store up to 9 minutes of stereo audio recordings and is able to provide good audio quality.

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