AD2S100

REV. A

–4–

PIN DESIGNATIONS

1, 2, 3

Pin

Mnemonic Description

3

STROBE

Begin Conversion

4VDD

Positive Power Supply

5VSS

Negative Power Supply

6

PH/OP4

Sin (

θ + φ)

7

PH/OP1

Cos (

θ + φ)

8

PH/OP3

Cos (

θ + 240° + φ)

9

PH/OP2

Cos (

θ + 120° + φ)

10

AGND

Analog Ground

11

PH/IP4

Sin

θ Input

12

PH/IPH3

High Level Cos (

θ + 240°) Input

13

PH/IP3

Cos (

θ + 240°) Input

14

PH/IPH2

High Level Cos (

θ + 120°) Input

15

PH/IP2

Cos (

θ + 120°) Input

16

PH/IPH1

High Level Cos

θ Input

17

PH/IP1

Cos

(θ) Input

19

VSS

Negative Power Supply

20

HPREF

Homopolar Reference

21

HPOP

Homopolar Output

22

HPFILT

Homopolar Filter

23

CONV1

Select Input Format (3 Phase/3 Wire, Sin

θ

24

CONV2

Cos

θ/Input, 3 Phase/2 Wire)

25

COS

Cos Output

26

SIN

Sin Output

27

DB12

(DB1 = MSB, DB12 = LSB

38

DB1

Parallel Input Data)

41

VDD

Positive Power Supply

42

DGND

Digital Ground

44

BUSY

Conversion in Progress

NOTES

Signal Inputs Ph/IP and PH/IPH on Pin Nos 11 through 17.

190

° orthogonal signals = Sin θ, Cos θ (Resolver) = PH/IP4 and PH/IP1.

2Three phase, 120

°, three-wire signals

= Cos

θ, Cos (θ + 120°), Cos (θ + 240°).

= PH/IP1, PH/IP2, PH/IP3

High Level = PH/IPH1, PH/IPH2, PH/IPH3.

3Three Phase, 120

°, two-wire signals = Cos (θ + 120°), Cos (θ + 240°)

= PH/IP2, PH/IP3.

In all cases where any of the input Pins 11 through 17 are not used, they must

be left unconnected.

PIN CONFIGURATION

6

5

4

3

2

1

44

43

42

41

40

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

NC = NO CONNECT

TOP VIEW

(NOT TO SCALE)

AD2S100

7

8

11

12

13

14

15

16

17

9

10

NC

DB1

DB2

DB3

DB4

DB5

DB6

DB7

DB8

DB9

DB10

PH/OP1

PH/OP3

PH/OP2

AGND

PH/IP4

PH/IPH3

PH/IP3

PH/IPH2

PH/IP2

PH/IPH1

PH/IP1