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AD1934YSTZ-RL データシート(PDF) 1 Page - Analog Devices

部品番号 AD1934YSTZ-RL
部品情報  8-Channel DAC with PLL, 192 kHz, 24 Bits
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
Logo AD - Analog Devices

AD1934YSTZ-RL データシート(HTML) 1 Page - Analog Devices

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8-Channel DAC with PLL,
192 kHz, 24 Bits
AD1934
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
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
www.analog.com
Fax: 781.461.3113
©2007 Analog Devices, Inc. All rights reserved.
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
APPLICATIONS
Automotive audio systems
Home theater systems
Set-top boxes
Digital audio effects processors
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 sigma-
delta (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.
FUNCTIONAL BLOCK DIAGRAM
SERIAL
DATA
PORT
PRECISION
VOLTAGE
REFERENCE
TIMING MANAGEMENT
AND CONTROL
(CLOCK AND PLL)
CONTROL PORT
I2C/SPI
CONTROL DATA
INPUT/OUTPUT
AD1934
DIGITAL AUDIO
INPUT/OUTPUT
SDATAIN
CLOCKS
ANALOG
AUDIO
OUTPUTS
6.144MHz
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DIGITAL
FILTER
AND
VOLUME
CONTROL
Figure 1.


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