ISL5585

FN6026 Rev 6.00

Page 3 of 23

October 21, 2004

Pinouts

ISL5585 (PLCC)

TOP VIEW

ISL5585 QFN

TOP VIEW

Device Operating Modes

MODE

F2

F1

F0

E0 = 1 E0 = 0 ISL5585A ISL5585B ISL5585C ISL5585D ISL5585E ISL5585F ISL5585G

Low Power Standby

0

0

0

SHD

GKD













Forward Active

0

0

1

SHD

GKD













Unbalanced Ringing

0

1

0

RTD

RTD



Reverse Active

0

1

1

SHD

GKD













Ringing

1

0

0

RTD

RTD













Forward Loop Back

1

0

1

SHD

GKD











Tip Open

1

1

0

SHD

GKD











Power Denial

1

1

1

n/a

n/a













RT

CDC

AUX

-IN

VFB

VTX

SW-

E0

SW+

SWC

F2

F1

F0

5

6

7

8

9

10

11

12

13

14

15

16

17

18

1

2

3

4

19

20

21

22

23

24

25

26

27

28

SW+

SW-

SWC

F2

F1

F0

E0

NC

ILIM

RT

CDC

VCC

-IN

VFB

VTX

AUX

1

2

3

4

5

6

7

8

24

23

22

21

20

19

18

17

32

31

30

29

28

27

26

25

910

11

12

13

14

15

16

Pin Description

PLCC

QFN

SYMBOL

DESCRIPTION

1

29

TIP

TIP power amplifier output.

2

30

BGND

Battery Ground - To be connected to zero potential. All loop current and longitudinal current flow from this ground.

Internally separate from AGND. This ground must be connected to the same potential as AGND.

3

31

VBL

Low battery supply connection.

4

32

VBH

High battery supply connection for the most negative battery.

5

1

SW+

Uncommitted switch positive terminal.

6

2

SW-

Uncommitted switch negative terminal.

7

3

SWC

Switch control input. This TTL compatible input controls the uncommitted switch, with a logic “0” enabling the switch

and logic “1” disabling the switch.

8

4

F2

Mode Control Input - MSB. F2-F0 for the TTL compatible parallel control interface for controlling the various modes of

operation of the device.

9

5

F1

Mode control input.