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AD1928

Analog Devices
Part Number AD1928
Manufacturer Analog Devices
Description 2 ADC/8 DAC
Published Jul 6, 2007
Detailed Description 2 ADC/8 DAC with PLL, 192 kHz, 24-Bit Codec AD1928 FEATURES PLL-generated or direct master clock Low EMI design 108 dB D...
Datasheet PDF File AD1928 PDF File

AD1928
AD1928

Overview
2 ADC/8 DAC with PLL, 192 kHz, 24-Bit Codec AD1928 FEATURES PLL-generated or direct master clock Low EMI design 108 dB DAC/107 dB ADC dynamic range and SNR −94 dB THD + N 3.
3 V single supply Tolerance for 5 V logic inputs Supports 24 bits and 8 kHz to 192 kHz sample rates Differential ADC input Single-ended DAC output Log volume control with autoramp function SPI® controllable for flexibility Software-controllable clickless mute Software power-down Right-justified, left-justified, I2S-justified, and TDM modes Master and slave modes up to 16-channel input/output 48-lead LQFP GENERAL DESCRIPTION The AD1928 is a high performance, single-chip codec that provides two analog-to-digital converters (ADCs) with differential input and eight digital-to-analog converters (DACs) with single-ended output using the Analog Devices, Inc.
, patented multibit sigma-delta (Σ-Δ) architecture.
An SPI port is included, allowing a microcontroller to adjust volume and many other parameters.
The AD1928 operates from 3.
3 V digital and analog supplies.
The AD1928 is available in a 48-lead (single-ended output) LQFP package.
Other members of this family include a differential DAC output and I2C® control port versions.
The AD1928 is designed for low EMI.
This consideration is apparent in both the system and circuit design architectures.
By using the on-board PLL to derive the master clock from the LR clock or from an external crystal, the AD1928 eliminates the need for a separate high frequency master clock and can be used with a suppressed bit clock.
The digital-to-analog and analog-to-digital converters are designed using the latest Analog Devices continuous time architectures to further minimize EMI.
By using 3.
3 V supplies, power consumption is minimized, further reducing emissions.
APPLICATIONS Automotive audio systems Home theater systems www.
DataSheet4U.
com Set-top boxes Digital audio effects processors FUNCTIONAL BLOCK DIAGRAM DIGITAL AUDIO INPUT/OUTPUT AD1928 SERIAL DATA PORT DAC DAC...


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