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AD2S83AP Folha de dados(PDF) 5 Page - Analog Devices

Nome de Peças AD2S83AP
Descrição Electrónicos  Variable Resolution, Resolver-to-Digital Converter
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
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AD2S83
–5–
REV. D
PIN FUNCTION DESCRIPTIONS
Pin
Nos.
Mnemonic
Description
1
DEMOD O/P
Demodulator Output
2
REFERENCE I/P
Reference Signal Input
3
AC ERROR O/P
Ratio Multiplier Output
4
COS
Cosine Input
5
ANALOG GND
Power Ground
6
SIGNAL GND
Resolver Signal Ground
7
SIN
Sine Input
8+VS
Positive Power Supply
10–25 DB1–DB16
Parallel Output Data
26
+VL
Logic Power Supply
27
ENABLE
Logic HI—Output Data Pins in
High Impedance State
Logic LO—Presents Active Data
to the Output Pins
28
BYTE SELECT
Logic HI—Most Significant Byte to
DB1–DB8
Logic LO—Least Significant Byte
to DB1–DB8
30
INHIBIT
Logic LO Inhibits Data Transfer
to Output Latches
31
DIGITAL GND
Digital Ground
32, 33 SC2–SC1
Select Converter Resolution
34
DATA LOAD
Logic LO DB1–DB16 Inputs
Logic HI DB1–DB16 Outputs
35
COMPLEMENT
Active Logic LO
36
BUSY
Converter Busy, Data not Valid
While Busy HI
37
DIRECTION
Logic State Defines Direction of
Input Signal Rotation
38
RIPPLE CLOCK
Positive Pulse When Converter Output
Changes from 1s to All 0s or Vice Versa
39
–VS
Negative Power Supply
40
VCO I/P
VCO Input
41
VCO O/P
VCO Output
42
INTEGRATOR O/P
Integrator Output
43
INTEGRATOR I/P
Integrator Input
44
DEMOD I/P
Demodulator Input
ABSOLUTE MAXIMUM RATINGS
1 (with respect to GND)
+VS
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +13 V dc
–VS
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –13 V dc
+VL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +VS
Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +13 V to –VS
SIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +13 V to –VS
COS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +13 V to –VS
Any Logical Input . . . . . . . . . . . . . . . . . . –0.4 V dc to +VL dc
Demodulator Input . . . . . . . . . . . . . . . . . . . . . . . +13 V to –VS
Integrator Input . . . . . . . . . . . . . . . . . . . . . . . . . . +13 V to –VS
VCO Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +13 V to –VS
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . 800 mW
Operating Temperature
Industrial (AP, IP) . . . . . . . . . . . . . . . . . . . –40
°C to +85°C
Storage Temperature . . . . . . . . . . . . . . . . . . –65
°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . +300
°C
CAUTION
1Absolute Maximum Ratings are those values beyond which damage to the device
may occur.
2Correct polarity voltages must be maintained on the +V
S and –VS pins.
RECOMMENDED OPERATING CONDITIONS
Power Supply Voltage (+VS, –VS) . . . . . . . . . .
±12 V dc ± 5%
Power Supply Voltage VL . . . . . . . . . . . . . . . . . +5 V dc ± 10%
Analog Input Voltage (SIN and COS) . . . . . . . . 2 V rms
± 10%
Analog Input Voltage (REF) . . . . . . . . . . . . . . 1 V to 8 V peak
Signal and Reference Harmonic Distortion . . . . . . . 10% (max)
Phase Shift Between Signal and Reference . . .
±10 Degrees (max)
Ambient Operating Temperature Range
Industrial (AP, IP) . . . . . . . . . . . . . . . . . . . . –40
°C to +85°C
PIN CONFIGURATION
9
10
11
12
13
7
8
16
17
14
15
21
44
3
4
5
642 41 40
43
35
36
37
38
39
33
34
31
32
29
30
–VS
RIPPLE CLOCK
DIRECTION
BUSY
COMP
DATA LOAD
SC1
SIN I/P
+VS
NC
(MSB) DB1
DB2
DB3
DB4
NC = NO CONNECT
DB5
DB6
DB7
DB8
SC2
DIGITAL GND
INHIBIT
NC
18 19 20 21 22 23 24 25 26 27 28
PIN 1
IDENTIFIER
TOP VIEW
(Not to Scale)
AD2S83
ESD SENSITIVITY
The AD2S83 features an input protection circuit consisting of large “distributed” diodes and
polysilicon series resistors to dissipate both high energy discharge (Human Body Model) and fast, low
energy pulses (Charges Device Model).
Proper ESD protection are strongly recommended to avoid functional damage or performance
degradation. For further information on ESD precautions, refer to Analog Devices ESD Prevention
Manual.
WARNING!
ESD SENSITIVE DEVICE


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