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AD1933WBSTZ-RL データシート(PDF) 1 Page - Analog Devices |
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AD1933WBSTZ-RL データシート(HTML) 1 Page - Analog Devices |
1 / 28 page 8-Channel DAC with PLL and Differential Outputs, 192 kHz, 24 Bits Data Sheet AD1933 Rev. E Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2007–2013 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com FEATURES PLL generated or direct master clock Low EMI design DAC with 110 dB dynamic range and SNR −96 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 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 input/output 64-lead LQFP Qualified for automotive applications APPLICATIONS Automotive audio systems Home Theater Systems Set-top boxes Digital audio effects processors GENERAL DESCRIPTION The AD1933 is a high performance, single chip that provides eight digital-to-analog converters (DACs) with differential 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 AD1933 operates from 3.3 V digital and analog supplies. The AD1933 is available in a 64-lead (differential output) LQFP. Other members of this family include a single-ended DAC output version. The AD1933 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 AD1933 eliminates the need for a separate high frequency master clock and can also be used with a suppressed bit clock. The DACs 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. FUNCTIONAL BLOCK DIAGRAM AD1933 6.144MHz ANALOG AUDIO OUTPUTS DIGITAL AUDIO INPUT/OUTPUT CONTROL DATA INPUT/OUTPUT DIGITAL FILTER AND VOLUME CONTROL SERIAL DATA PORT PRECISION VOLTAGE REFERENCE CLOCKS SDATAIN CONTROL PORT SPI TIMING MANAGEMENT AND CONTROL (CLOCK AND PULL) DAC DAC DAC DAC DAC DAC DAC DAC Figure 1. |
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