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參數(shù)資料
| 型號： | AD2S83 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Variable Resolution, Monolithic Resolver-to-Digital Converters(可變分辨率,單片解算-數(shù)字變換器) |
| 中文描述： | 可變分辨率，單片分解到數(shù)字轉(zhuǎn)換器（可變分辨率，單片解算-數(shù)字變換器） |
| 文件頁數(shù)： | 6/19頁 |
| 文件大?。?/td> | 198K |
| 代理商： | AD2S83 |
AD2S83
REV. D
–6–
Bit Weight Table
Binary
Bits (N)
Resolution
(N
N
)
Degrees
/Bit
Minutes
/Bit
Seconds
/Bit
0
1
2
3
4
1
2
4
8
360.0
180.0
90.0
45.0
22.5
21600.0
10800.0
5400.0
2700.0
1350.0
1296000.0
648000.0
324000.0
162000.0
81000.0
16
5
6
7
8
9
32
64
128
256
512
11.25
5.625
2.8125
1.40625
0.703125
675.0
337.5
168.75
84.375
42.1875
40500.0
20250.0
10125.0
5062.5
2531.25
10
11
12
13
14
1024
2048
4096
8192
16384
0.3515625
0.1757813
0.0878906
0.0439453
0.0219727
21.09375
10.546875
5.273438
2.636719
1.318359
1265.625
632.8125
316.40625
158.20313
79.10156
15
16
17
18
32768
65536
131072
262144
0.0109836
0.0054932
0.0027466
0.0013733
0.659180
0.329590
0.164795
0.082397
39.55078
19.77539
9.88770
4.94385
CONNECTING THE CONVERTER
The power supply voltages connected to +V
S
and –V
S
pins
should be +12 V dc and –12 V dc and must not be reversed.
The voltage applied to V
L
can be +5 V dc to +V
S
.
It is recommended that the decoupling capacitors are connected
in parallel between the power lines +V
S
, –V
S
and ANALOG
GROUND adjacent to the converter. Recommended values are
100 nF (ceramic) and 10
μ
F (tantalum). Also capacitors of
100 nF and 10
μ
F should be connected between +V
L
and
DIGITAL GROUND adjacent to the converter.
When more than one converter is used on a card, separate de-
coupling capacitors should be used for each converter.
The resolver connections should be made to the SIN and COS
inputs, REFERENCE INPUT and SIGNAL GROUND as
shown in Figure 11 and described in the Connecting the
Resolver section.
The two signal ground wires from the resolver should be joined
at the SIGNAL GROUND pin of the converter to minimize the
coupling between the sine and cosine signals. For this reason it
is also recommended that the resolver is connected using indi-
vidually screened twisted pair cables with the sine, cosine and
reference signals twisted separately.
SIGNAL GROUND and ANALOG GROUND are connected
internally. ANALOG GROUND and DIGITAL GROUND
must be connected externally and as close to the converter as
possible.
The external components required should be connected as
shown in Figure 1.
CONVERTER RESOLUTION
Two major areas of the AD2S83 specification can be selected by
the user to optimize the total system performance. The resolu-
tion of the digital output is set by the logic state of the inputs
SC1 and SC2 to be 10, 12, 14 or 16 bits; and the dynamic char-
acteristics of bandwidth and tracking rate are selected by the
choice of external components.
The choice of the resolution will affect the values of R4 and R6
which scale the inputs to the integrator and the VCO respec-
tively (see Component Selection section). If the resolution is
changed, then new values of R4 and R6 must be switched into
the circuit.
Note: When changing resolution under dynamic conditions, do
it when the BUSY is low, i.e., when data is not changing.
A1
A2
SEGMENT
SWITCHING
RIPPLE
CLOCK
TRACKING
RATE
SELECTION
VELOCITY
SIGNAL
R5
C4
C5
INTEGRATOR
I/P
BANDWIDTH
SELECTION
R8
–12V
+12V
OFFSET ADJUST
R9
R3
C3
REFERENCE
I/P
HF FILTER
R2
C2
C1
R1
DEMOD
O/P
PHASE
SENSITIVE
DETECTOR
INTEGRATOR
O/P
DIRECTION
BUSY
DIG
GND
16 DATA BITS
SC1 SC2
DATA
LOAD
BYTE
SELECT
+5V
+12V
–12V
GND
COS
SIG GND
SIN
AC ERROR O/P
AD2S83
VCO
O/P
VCO
I/P
C7
150pF
VCO + DATA
TRANSFER
LOGIC
A3
R4
R7
3K3
C6
390pF
OUTPUT DATA LATCH
R - 2R DAC
16-BIT UP/DOWN COUNTER
R6
INHIBIT
ENABLE
Figure 1. Connection Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD2S90 | Low Cost, Complete 12-Bit Resolver-to-Digital Converter |
| AD2S90AP | Low Cost, Complete 12-Bit Resolver-to-Digital Converter |
| AD2S93 | Low Cost LVDT-to-Digital Converter |
| AD2S93AP | Aluminum Electrolytic Capacitor; Capacitor Type:Industrial Grade; Voltage Rating:350VDC; Capacitor Dielectric Material:Aluminum Electrolytic; Operating Temperature Range:-40 C to +85 C; Capacitance:160uF RoHS Compliant: Yes |
| AD2S93BP | Aluminum Electrolytic Capacitor; Capacitor Type:Industrial Grade; Voltage Rating:150VDC; Capacitor Dielectric Material:Aluminum Electrolytic; Operating Temperature Range:-40 C to +85 C; Capacitance:16uF RoHS Compliant: Yes |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD2S83AP | 制造商:Analog Devices 功能描述:Resolver to Digital 16-Bit Parallel ±8arcmin 44-Pin PLCC 制造商:Analog Devices 功能描述:RESOLVER TO DGTL CNVRTR 44PLCC - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:8 ARC MIN 44PLCC -40/85C - Bulk 制造商:Analog Devices 功能描述:IC R/D CONVERTER 10-16 BIT |
| AD2S83APZ | 功能描述:IC R/D CONV TRACKING 44PLCC RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關(guān)文件:Automotive Product Guide 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:管件 |
| AD2S83APZ-REEL | 功能描述:IC CONV R/D MONO VAR RES 44PLCC RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關(guān)文件:Automotive Product Guide 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:管件 |
| AD2S83IP | 制造商:Analog Devices 功能描述:Resolver to Digital 16-Bit Parallel 制造商:Analog Devices 功能描述:RESOLVER TO DGTL CNVRTR 44PLCC - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:8 ARC MIN 44PLCC -40/85C - Bulk |
| AD2S83IP-REEL | 制造商:Analog Devices 功能描述:Resolver to Digital 16-Bit Parallel 制造商:Rochester Electronics LLC 功能描述:8 ARC MIN 44PLCC -40/85C - Tape and Reel |
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