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參數(shù)資料
| 型號(hào)： | AD2S1200WST |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 位置變換器 |
| 英文描述： | 12-Bit R/D Converter with Reference Oscillator |
| 中文描述： | SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, PQFP44 |
| 封裝： | LQFP-44 |
| 文件頁數(shù)： | 11/24頁 |
| 文件大?。?/td> | 390K |
| 代理商： | AD2S1200WST |
AD2S1200
CONNECTING THE CONVERTER
Refer to Figure 5. Ground should be connected to the AGND
pin and DGND pin. Positive power supply V
DD
= +5 V dc ± 5%
should be connected to the AV
DD
pin and DV
DD
pin. Typical
values for the decoupling capacitors are 10 nF and 4.7 μF,
respectively. These capacitors should be placed as close to the
device pins as possible, and should be connected to both AV
DD
and DV
DD
. If desired, the reference oscillator frequency can be
changed from the nominal value of 10 kHz using FS1 and FS2.
Typical values for the oscillator decoupling capacitors are 20 pF.
Typical values for the reference decoupling capacitors are 10 μF
and 0.01 μF, respectively.
Rev. 0 | Page 11 of 24
0
DV
DD
5V
1
2
3
4
5
6
7
8
9
10
11
RESET
33
32
31
30
29
28
27
26
25
24
DGND
8.912
MHz
20pF
20pF
4.7
μ
F
10nF
23
12
13
14
15
D
16
D
D
17
18
19
20
21
22
44
R
43
A
42
C
41
C
40
A
D
39
S
38
S
37
A
36
35
E
34
AD2S1200
E
10
μ
F
10nF
5V
S2
S6
S3
S1
4.7
μ
F
10nF
5V
BUFFER
CIRCUIT
BUFFER
CIRCUIT
R2
R1
Figure 5. Connecting the AD2S1200 to a Resolver
The gain of the buffer depends on the type of resolver used.
Since the specified excitation output amplitudes are matched to
the specified Sin/Cos input amplitudes, the gain of the buffer is
determined by the attenuation of the resolver.
In this recommended configuration, the converter introduces a
V
REF
/2 offset in the Sin, Cos signals coming from the resolver.
Of course, the SinLO and CosLO signals may be connected to a
different potential relative to ground, as long as the Sin and Cos
signals respect the recommended specifications. Note that since
the EXC/EXC outputs are differential, there is an inherent gain
of 2×.
For example, if the primary to secondary turns ratio is 2:1, the
buffer will have unity gain. Likewise, if the turns ratio is 5:1, the
gain of the buffer should be 2.5×. Figure 6 suggests a buffer
circuit. The gain of the circuit is
)
R
/
2
(
R
Gain
=
and
×
1
×
=
IN
REF
OUT
V
V
R
R
R
R
V
1
2
1
2
V
REF
is set so that V
OUT
is always a positive value, eliminating the
need for a negative supply.
0
12V
EXC/EXC
(V
IN
)
5V
(V
REF
)
R2
12V
V
OUT
33
33
R1
442
1.24k
12V
2.7k
2.7k
Figure 6. Buffer Circuit
Separate screened twisted cable pairs are recommended for
analog inputs Sin/SinLO and Cos/CosLO. The screens should
terminate to REFOUT. To achieve the dynamic performance
specified, an 8.192 MHz crystal must be used.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD2S1200WSTZ | 功能描述:IC R/D CONV W/REF OSCIL 44-LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| AD2S1200WSTZSTZ | 制造商:Analog Devices 功能描述:ANAAD2S1200WSTZ |
| AD2S1200YST | 制造商:Analog Devices 功能描述:Resolver to Digital 12-Bit Parallel/Serial (3-Wire, SPI) 制造商:Rochester Electronics LLC 功能描述:12-BIT R/D CONVERTER W/REF OSCILLATOR - Bulk 制造商:Analog Devices 功能描述:IC 12BIT ADC REF OSC SMD 2S1200 |
| AD2S1200YSTZ | 功能描述:IC CONV R/D 12-BIT W/OSC 44-LQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Data Converter Basics 標(biāo)準(zhǔn)包裝:1 系列:- 類型:電機(jī)控制 分辨率（位）:12 b 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，并聯(lián) 電壓電源:單電源 電源電壓:2.7 V ~ 3.6 V，4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:100-TQFP 供應(yīng)商設(shè)備封裝:100-TQFP（14x14） 包裝:剪切帶 (CT) 其它名稱:296-18373-1 |
| AD2S1200YSTZ | 制造商:Analog Devices 功能描述:IC 12BIT ADC REF OSC SMD 2S1200 |
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