AD2S99 Ver la hoja de datos (PDF) - Analog Devices

Número de pieza

componentes Descripción

Fabricante

AD2S99

Programmable Oscillator

Analog Devices 

AD2S99

AD2S99/AD2S82A TYPICAL CONFIGURATION

Figure 4 shows a typical circuit configuration for the AD2S99

Oscillator and the AD2S82A Resolver-to-Digital Converter.

The maximum level of the SIN and COS input signals to the

AD2S82A should be 2 V rms ± 10%. All the analog ground sig-

nals should be star connected to the AD2S82A AGND pin. If

shielded twisted pair cables are used for the resolver signals, the

shields should also be terminated at the AD2S82A AGND pin.

Coupling capacitor C3, and resistor to GND R3, between the

SYNREF output of the AD2S99 and the REF input pin of the

AD2S82A are optional. For additional information on selecting

component values for the AD2S82A, please refer to the

AD2S82A data sheet or the application note “Passive Compo-

nent Selection and Dynamic Modeling for the AD2S80 Series

Resolver-to-Digital Converters” (AN-266).

SYNREF

COS

–5V

COS

REF

SIN

R3, C3 OPTIONAL

C3

R3

C1

VELOCITY

OUTPUT

C5

R5

R2

C4

C2

4.7µF

RESOLVER

SIN

R1

R4

AGND

0V

R6

NC 4

SIN

5

DGND

6

COS

7

NC 8

0.1µF

3 2 1 20 19

AD2S99

TOP VIEW

(Not to Scale)

EXC

18

EXC

17

AGND

16

15 NC

14 NC

9 10 11 12 13

50k 0.1µF

4.7µF

NC = NO CONNECT

LOS

SEL1 = GND

SEL2 = VSS

FOUT = 10kHz

AGND

10µF

+12V

SIN

I/P

7

0.1µF +VS 8

NC 9

MSB DB1

10

DB2 11

DB3 12

DB4 13

DB5 14

DB6 15

DB7 16

+5V

DB8 17

6 5 4 3 2 1 44 43 42 41 40

AD2S82A

TOP VIEW

(Not to Scale)

0.1µF

10µF

39 –VS

38 RC

–12V

37 DIR

36 BUSY

35 DATA LOAD

34 COMP

33 SC2

32 SC1

31 DIGITAL GND

30 INHIBIT

29 NC

DIGITAL

OUTPUT

DATA

DGND

18 19 20 21 22 23 24 25 26 27 28

0.1µF

+5V

10µF

Figure 4. AD2S99 and AD2S82A Example Configuration

–6–

REV. B

Share Link: