AIC111YER

S/N Ratio, ADCs / DACs (db) Typ:	--
Base Part Number:	AIC111
Supplier Device Package:	32-DIESALE
Package / Case:	32-VQFN
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
Voltage - Supply, Digital:	1.1 V ~ 1.5 V
Voltage - Supply, Analog:	1.1 V ~ 1.5 V
Dynamic Range, ADCs / DACs (db) Typ:	--
Series:	microPOWER™
Sigma Delta:	Yes
Number of ADCs / DACs:	1 / 1
Resolution (Bits):	8 b
Data Interface:	Serial
Type:	Voice-Band
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction to AIC111YER Application Field and Working Principle

AIC111YER is a digital CODEC specifically designed for audio and speech applications which require high quality digital audio and low power consumption. It features a high performance, low cost single-chip solution that supports up to 16 kHz sampling frequency and supports different sample bit sizes from 8 to 20 bits. The AIC111YER CODEC is an ideal solution for audio applications such as VoIP, cell phones and PDAs.

Applications of AIC111YER

AIC111YER CODEC is mainly used in the audio and speech applications. It is an efficient and cost effective way to transmit voice data over a wide range of frequencies. Some popular applications of AIC111YER CODEC are:• VoIP – Voice over Internet Protocol (VoIP) is a technology which uses the internet to make and receive phone calls. AIC111YER CODEC provides the audio codec needed for VoIP applications.• Mobile Phones – AIC111YER CODEC is used in most mobile phones. It provides a digital signal processor for the audio signal processing necessary for voice communication.• Digital Audio Workstations (DAW) – These machines are used to mix, process and produce digital audio. AIC111YER CODEC is used in a DAW to perform sampling, encoding and decoding of audio signals.• PDAs – Personal digital assistants use AIC111YER CODEC for voice recording or to transmit voice communication.

Working Principle of AIC111YER

AIC111YER CODEC has two working modes: A/D and D/A, which stands for Analog to Digital and Digital to Analog, respectively. In analog to digital mode, the CODEC samples analog signals and encodes them into digital format. In digital to analog mode, the CODEC decodes the digital signal into analog. In A/D mode, AIC111YER CODEC samples analog audio signals and converts them into digital format. It use pulse code modulation (PCM) to encode the analog signals and a delta-sigma modulation for the digital to analog conversion. In D/A mode, AIC111YER CODEC decodes digital audio signals and converts them into an analog format. It decodes PCM digital signals into a 13-bit pulse code. Further, it uses an oversampling technique to convert the digital encoded signals into high quality audio.

Conclusion

AIC111YER CODEC is a digital CODEC used for audio and speech processing applications. It is an ideal solution for audio applications such as VoIP, cell phones, PDAs and digital audio workstations. AIC111YER has two working modes, analog to digital and digital to analog, for encoding and decoding audio signals. It uses different techniques such as PCM, delta-sigma modulation and oversampling for encoding and decoding digital signals.

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