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AD2S1200WSTZ

更新时间： 2024-11-07 13:05:23
品牌 Logo 应用领域
亚德诺 - ADI 振荡器转换器
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AD2S1200WSTZ 数据手册

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12-Bit R/D Converter  
with Reference Oscillator  
AD2S1200  
GENERAL DESCRIPTION  
FEATURES  
Complete monolithic R/D converter  
Parallel and serial 12-bit data ports  
System fault detection  
The AD2S1200 is a complete 12-bit resolution tracking resolver-  
to-digital converter, integrating an on-board programmable  
sinusoidal oscillator that provides sine wave excitation for  
resolvers. An external 8.192 MHz crystal is required to provide  
a precision time reference. This clock is internally divided to  
generate a 4.096 MHz clock to drive all the peripherals.  
Absolute position and velocity outputs  
Differential inputs  
11 arc minutes of accuracy  
1,000 rps maximum tracking rate, 12-bit resolution  
Incremental encoder emulation (1,024 pulses/rev)  
Programmable sinusoidal oscillator on-board  
Compatible with DSP and SPI® interface standards  
204.8 kHz square wave output  
Single-supply operation (5.00 V 5ꢀ)  
−40°C to +125°C temperature rating  
44-lead LQFP package  
The converter accepts 3.6 V p-p 10ꢀ input signals, in the  
range of 10 kHz to 20 kHz on the Sin and Cos inputs. A Type II  
servo loop is employed to track the inputs and convert the input  
Sin and Cos information into a digital representation of the  
input angle and velocity. The bandwidth of the converter is set  
internally to 1.7 kHz with an external 8.192 MHz crystal. The  
maximum tracking rate is 1,000 rps.  
4 kV ESD protection  
FUNCTIONAL BLOCK DIAGRAM  
CLKIN  
(8.192MHz)  
XTALOUT  
REFBYP  
REFOUT  
FS1  
FS2  
INTERNAL  
VOLTAGE  
REFERENCE  
AD2S1200  
(4.096MHz)  
CLOCK  
GENERATOR  
REFERENCE  
OSCILLATOR  
(DAC)  
EXC  
EXC  
(204.8kHz)  
CLOCK  
CPO  
DIVIDER  
SYNTHETIC  
REFERENCE  
DOS  
LOT  
FAULT  
INDICATORS  
SinLO  
Sin  
ADC  
MONITOR  
MONITOR  
ERROR  
CALCULATION/  
SIGNAL  
DEMODULATOR  
ANGLE θ  
ERROR  
ERROR  
MONITOR  
CosLO  
Cos  
ADC  
DIGITAL  
FILTER  
ANGLE φ  
A
ENCODER  
POSITION  
VELOCITY  
DIR  
EMULATION  
INTEGRATOR  
INTEGRATOR  
B
NM  
POSITION REGISTER  
VELOCITY REGISTER  
SAMPLE  
MULTIPLEXER  
CS  
RD  
DATA BUS OUTPUT  
RESET  
RDVEL  
SOE  
DB11  
SO  
DB10  
SCLK  
DB9–DB0  
Figure 1.  
Rev. 0  
Information furnished by Analog Devices is believed to be accurate and reliable.  
However, no responsibility is assumed by Analog Devices for its use, nor for any  
infringements of patents or other rights of third parties that may result from its use.  
Specifications subject to change without notice. No license is granted by implication  
or otherwise under any patent or patent rights of Analog Devices. Trademarks and  
registered trademarks are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
Fax: 781.326.8703  
www.analog.com  
© 2003 Analog Devices, Inc. All rights reserved.  
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AD2S1200WSTZ 替代型号

型号 品牌 替代类型 描述 数据表
AD2S1200WST ADI

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