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| 型号： | AD2S1210WDSTZRL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/36页 |
| 文件大小： | 0K |
| 描述： | IC CONV R/D VAR REF OSC 48LQFP |
| 标准包装： | 1 |
| 类型： | R/D 转换器 |
| 分辨率（位）： | 10，12，14，16 b |
| 数据接口： | 串行，并联 |
| 电压电源： | 模拟和数字 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-LQFP |
| 供应商设备封装： | 48-LQFP（7x7） |
| 包装： | 标准包装 |
| 其它名称： | AD2S1210WDSTZRL7DKR |
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Variable Resolution, 10-Bit to 16-Bit R/D
Converter with Reference Oscillator
AD2S1210
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
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
2008–2010 Analog Devices, Inc. All rights reserved.
FEATURES
Complete monolithic resolver-to-digital converter
3125 rps maximum tracking rate (10-bit resolution)
±2.5 arc minutes of accuracy
10-/12-/14-/16-bit resolution, set by user
Parallel and serial 10-bit to 16-bit data ports
Absolute position and velocity outputs
System fault detection
Programmable fault detection thresholds
Differential inputs
Incremental encoder emulation
Programmable sinusoidal oscillator on-board
Compatible with DSP and SPI interface standards
5 V supply with 2.3 V to 5 V logic interface
40°C to +125°C temperature rating
APPLICATIONS
DC and ac servo motor control
Encoder emulation
Electric power steering
Electric vehicles
Integrated starter generators/alternators
Automotive motion sensing and control
FUNCTIONAL BLOCK DIAGRAM
REFERENCE
OSCILLATOR
(DAC)
EXCITATION
OUTPUTS
AD2S1210
EN
C
O
D
ER
EM
UL
A
T
IO
N
SYNTHETIC
REFERENCE
RESET
DATA I/O
INPUTS
FROM
RESOLVER
ENCODER
EMULATION
OUTPUTS
VOLTAGE
REFERENCE
PINS
INTERNAL
CLOCK
GENERATOR
CRYSTAL
TYPE II
TRACKING LOOP
FAULT
DETECTION
FAULT
DETECTION
OUTPUTS
POSITION
REGISTER
ADC
CONFIGURATION
REGISTER
MULTIPLEXER
DATA BUS OUTPUT
DATA I/O
VELOCITY
REGISTER
07
467
-00
1
Figure 1.
GENERAL DESCRIPTION
The AD2S1210 is a complete 10-bit to 16-bit resolution tracking
resolver-to-digital converter, integrating an on-board program-
mable sinusoidal oscillator that provides sine wave excitation
for resolvers.
The converter accepts 3.15 V p-p ± 27% input signals, in the range
of 2 kHz to 20 kHz on the sine and cosine inputs. A Type II
servo loop is employed to track the inputs and convert the input
sine and cosine information into a digital representation of the
input angle and velocity. The maximum tracking rate is 3125 rps.
PRODUCT HIGHLIGHTS
1.
Ratiometric tracking conversion. The Type II tracking loop
provides continuous output position data without
conversion delay. It also provides noise immunity and
tolerance of harmonic distortion on the reference and
input signals.
2.
System fault detection. A fault detection circuit can sense
loss of resolver signals, out-of-range input signals, input
signal mismatch, or loss of position tracking. The fault
detection threshold levels can be individually programmed
by the user for optimization within a particular application.
3.
Input signal range. The sine and cosine inputs can accept
differential input voltages of 3.15 V p-p ± 27%.
4.
Programmable excitation frequency. Excitation frequency
is easily programmable to a number of standard frequencies
between 2 kHz and 20 kHz.
5.
Triple format position data. Absolute 10-bit to 16-bit angular
position data is accessed via either a 16-bit parallel port or a
4-wire serial interface. Incremental encoder emulation is in
standard A-quad-B format with direction output available.
6.
Digital velocity output. 10-bit to 16-bit signed digital velocity
accessed via either a 16-bit parallel port or a 4-wire serial
interface.
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