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AD1934

Analog Devices
Part Number AD1934
Manufacturer Analog Devices
Description 8-Channel DAC
Published Jan 13, 2008
Detailed Description www.DataSheet4U.com 8-Channel DAC with PLL, 192 kHz, 24 Bits AD1934 FEATURES PLL generated or direct master clock Low E...
Datasheet PDF File AD1934 PDF File

AD1934
AD1934

Overview
www.
DataSheet4U.
com 8-Channel DAC with PLL, 192 kHz, 24 Bits AD1934 FEATURES PLL generated or direct master clock Low EMI design 108 dB DAC dynamic range and SNR −94 dB THD + N Single 3.
3 V supply Tolerance for 5 V logic inputs Supports 24 bits and 8 kHz to 192 kHz sample rates 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 and TDM modes Master and slave modes up to 16-channel in/out 48-lead LQFP GENERAL DESCRIPTION The AD1934 is a high performance, single-chip that provides eight digital-to-analog converters (DACs) with single-ended output using the Analog Devices, Inc.
patented multibit sigmadelta (Σ-Δ) architecture.
An SPI port is included, allowing a microcontroller to adjust volume and many other parameters.
The AD1934 operates from 3.
3 V digital and analog supplies.
The AD1934 is available in a 48-lead (single-ended output) LQFP.
Other members of this family include a differential DAC output and I2C® control port version.
The AD1934 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 AD1934 eliminates the need for a separate high frequency master clock and can also be used with a suppressed bit clock.
The digital-to-analog converters are designed using the latest ADI 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 Set-top boxes Digital audio effects processors FUNCTIONAL BLOCK DIAGRAM AD1934 DAC DAC DAC DIGITAL FILTER AND VOLUME CONTROL TIMING MANAGEMENT AND CONTROL (CLOCK AND PLL) DAC DAC DAC DAC DAC ANALOG AUDIO OUTPUTS CLOCKS DIGITAL AUDIO INPUT/OUTPUT SERIAL DATA PORT SDATAIN PRECISION VOLTAGE REFE...


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