ISD2532SY

Series:	ChipCorder®
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Interface:	Pushbutton
Moisture Sensitivity Level (MSL):	--
Input Signal:	Analog - Single Ended, Microphone
Output Signal:	PWM Speaker Output
Sampling Frequency:	8kHz
Duration:	32 Sec
Filter Pass Band:	3.4kHz
Messaging:	Multiple
Oscillator Type:	Internal/External
Features:	Automatic Gain Control
Operating Temperature:	0°C ~ 70°C (TA)
Voltage - Supply:	4.5V ~ 6.5V
Mounting Type:	Surface Mount
Package / Case:	28-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	28-SOIC

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ISD2532SY Applications and Working Principles

The ISD2532SY is a voice record/playback integrated circuit (IC) designed for applications such as answering machines, voice activated toys, medical electronic devices and security devices. The IC features a built-in preamplifier, microphone input and output amplifier, power management and digital signal processor which allows it to integrate the functions of recording, playback, equalization (EQ) and compression in a small footprint.The main components of the ISD2532SY are the microphone, preamplifier, A/D converter, digital signal processor and the power management circuit. The microphone captures the incoming audio signal and the preamplifier amplifies the signal before sending it to the A/D converter. The A/D converter translates the signal into digital signals for processing by the digital signal processor, which applies EQ and compression as needed. The power management circuit manages the supply of power to the IC and optimizes the power consumption.The ISD2532SY can record up to two hours of audio on a 4-channel sampling rate of 8, 11.025, 16 and 22.05 KHz. It uses the Dynamic Noise Reduction (DNR) algorithm which helps reduce background noise and enhance signal to noise ratio. It also has onboard audio mixing capabilities and adjustable gain settings. The IC can be programmed via the integrated I2C interface.The ISD2532SY can playback audio through either the on-chip PWM output or SPI port. It can also be connected to an external audio amplifier through its analog output. The IC can be programmed to perform functions such as auto-play, play one track continuously or play multiple tracks sequentially. It also supports multiple audio formats such as WAV, MP3 and AAC.The ISD2532SY provides a low power consumption, high operation frequency and a high performance audio processing capability. It is suitable for applications where low power consumption and high quality audio reproduction is required. It is also cost-effective and is a great choice for designs where a low power consumption, quality audio reproduction and programmability are required.

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